[wasm AOT] error : LLVM ERROR: out of memory #120245

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Open
[wasm AOT] error : LLVM ERROR: out of memory#120245
Labels
Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
Milestone
Future

Description

@jkotas
jkotas
opened on Sep 30, 2025

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1161305
Build error leg or test failing: WasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution
Pull request: #120242

Error Message

Fill the error message using step by step known issues guidance.

{
"ErrorMessage": "error : LLVM ERROR: out of memory",
"ErrorPattern": "",
"BuildRetry": true,
"ExcludeConsoleLog": false
}
 [48/74] System.Runtime.Intrinsics.dll.bc -> System.Runtime.Intrinsics.dll.o [took 0.98s]
[49/74] System.Runtime.Loader.dll.bc -> System.Runtime.Loader.dll.o [took 0.84s]
[50/74] System.Runtime.Numerics.dll.bc -> System.Runtime.Numerics.dll.o [took 5.00s]
[51/74] System.Runtime.Serialization.Formatters.dll.bc -> System.Runtime.Serialization.Formatters.dll.o [took 3.29s]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Failed to compile C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -> C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.o [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>C:\Windows\System32\chcp.com 65001 1>nul [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>setlocal [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel=dummy [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel= [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>"C:\helix\work\correlation\build\emsdk\emscripten\emcc" "@C:\helix\work\correlation\build\microsoft.netcore.app.runtime.browser-wasm\runtimes\browser-wasm\native\src\emcc-default.rsp" -msimd128 "@C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\emcc-compile-bc.rsp" -c -o "C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp" "C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:/helix/work/correlation/build/emsdk/bin\clang.exe" -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\helix\work\correlation\build\emsdk\emscripten\cache\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\fakesdl -Xclang -iwithsysroot/include\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -o C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : (in-process) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:\\helix\\work\\correlation\\build\\emsdk\\bin\\clang.exe" -cc1 -triple wasm32-unknown-emscripten -emit-obj -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name System.Runtime.Tests.dll.bc -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-feature +exception-handling -mllvm -wasm-enable-eh -target-feature +multivalue -target-feature +reference-types -target-feature +exception-handling -exception-model=wasm -target-feature +multivalue -target-feature +reference-types -target-cpu generic -target-feature +simd128 -debugger-tuning=gdb "-fdebug-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -v "-fcoverage-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -resource-dir "C:\\helix\\work\\correlation\\build\\emsdk\\lib\\clang\\19" -Oz -Werror=implicit-function-declaration -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -exception-model=wasm -vectorize-slp "-iwithsysroot/include\\fakesdl" "-iwithsysroot/include\\compat" -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr -o "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp" -x ir "C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang -cc1 version 19.1.0 based upon LLVM 19.1.0 default target x86_64-pc-windows-msvc [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : LLVM ERROR: out of memory [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Allocation failed [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Stack dump: [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 0.	Program arguments: C:/helix/work/correlation/build/emsdk/bin\\clang.exe -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\\helix\\work\\correlation\\build\\emsdk\\emscripten\\cache\\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\\fakesdl -Xclang -iwithsysroot/include\\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc -o C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 1.	Code generation [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 2.	Running pass 'Function Pass Manager' on module 'C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc'. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 3.	Running pass 'Slot index numbering' on function '@System_Runtime_Tests_System_Tests_HalfTests__RootN_TestDatad__88_MoveNext' [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Exception Code: 0x80000003 [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #0 0x00007ff6c5cfd795 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11dd795) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #1 0x00007ff6c7de4cbd (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32c4cbd) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #2 0x00007ff6c7dd5048 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32b5048) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #3 0x00007ff6c5cf76c9 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d76c9) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #4 0x00007ff6c5cf7582 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d7582) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #5 0x00007ff6c7dce18d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32ae18d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #6 0x00007ff6c7deac61 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32cac61) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #7 0x00007ff6c7dcf53e (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32af53e) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #8 0x00007ff6c4c3adaf (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11adaf) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #9 0x00007ff6c5699469 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb79469) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #10 0x00007ff6c569a66d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb7a66d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #11 0x00007ff6c55dda6f (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xabda6f) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #12 0x00007ff6c5921af8 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01af8) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #13 0x00007ff6c5921d25 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01d25) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #14 0x00007ff6c5921f9c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01f9c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #15 0x00007ff6c59217e0 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe017e0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #16 0x00007ff6c5f64cf6 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1444cf6) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #17 0x00007ff6c5f63fda (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1443fda) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #18 0x00007ff6c5f647db (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x14447db) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #19 0x00007ff6c6466e12 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1946e12) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #20 0x00007ff6c6695962 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b75962) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #21 0x00007ff6c667eb09 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b5eb09) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #22 0x00007ff6c6717e90 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1bf7e90) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #23 0x00007ff6c4bb1c99 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x91c99) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #24 0x00007ff6c4bab04a (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8b04a) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #25 0x00007ff6c655ed65 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3ed65) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #26 0x00007ff6c5cf0808 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d0808) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #27 0x00007ff6c655f425 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3f425) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #28 0x00007ff6c64ab6a2 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b6a2) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #29 0x00007ff6c64ab98c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b98c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #30 0x00007ff6c648dd0d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x196dd0d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #31 0x00007ff6c4bad2f3 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8d2f3) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #32 0x00007ff6c4bbb8e4 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x9b8e4) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #33 0x00007ff6c7dcee08 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32aee08) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #34 0x00007ffc21ee4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #35 0x00007ffc56bdedcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: error: clang frontend command failed due to signal (use -v to see invocation) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs. [took 85.11s] [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]

Known issue validation

Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1161305
Error message validated:[error : LLVM ERROR: out of memory]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 9/30/2025 5:35:50 AM UTC

Report

BuildDefinitionTestPull Request
1161477dotnet/runtimeWasmTestOnChrome-ST-System.Threading.Timer.Tests.WorkItemExecution
1161092dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution#120231
1161398dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120097
1161305dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120242

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24-Hour Hit Count7-Day Hit Count1-Month Count
444

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24-Hour Hit Count7-Day Hit Count1-Month Count
000

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(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

      Skip to content
      [wasm AOT] error : LLVM ERROR: out of memory #120245
      Open
      Open
      [wasm AOT] error : LLVM ERROR: out of memory#120245
      Labels
      Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
      Milestone
      Future
      Description
      @jkotas
      jkotas
      opened on Sep 30, 2025
      Build Information
      Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1161305
      
Build error leg or test failing: WasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution
      
Pull request: #120242
      Error Message
      Fill the error message using step by step known issues guidance.
      {
"ErrorMessage": "error : LLVM ERROR: out of memory",
"ErrorPattern": "",
"BuildRetry": true,
"ExcludeConsoleLog": false
}
       [48/74] System.Runtime.Intrinsics.dll.bc -> System.Runtime.Intrinsics.dll.o [took 0.98s]
[49/74] System.Runtime.Loader.dll.bc -> System.Runtime.Loader.dll.o [took 0.84s]
[50/74] System.Runtime.Numerics.dll.bc -> System.Runtime.Numerics.dll.o [took 5.00s]
[51/74] System.Runtime.Serialization.Formatters.dll.bc -> System.Runtime.Serialization.Formatters.dll.o [took 3.29s]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Failed to compile C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -> C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.o [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>C:\Windows\System32\chcp.com 65001 1>nul [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>setlocal [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel=dummy [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel= [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>"C:\helix\work\correlation\build\emsdk\emscripten\emcc" "@C:\helix\work\correlation\build\microsoft.netcore.app.runtime.browser-wasm\runtimes\browser-wasm\native\src\emcc-default.rsp" -msimd128 "@C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\emcc-compile-bc.rsp" -c -o "C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp" "C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:/helix/work/correlation/build/emsdk/bin\clang.exe" -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\helix\work\correlation\build\emsdk\emscripten\cache\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\fakesdl -Xclang -iwithsysroot/include\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -o C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : (in-process) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:\\helix\\work\\correlation\\build\\emsdk\\bin\\clang.exe" -cc1 -triple wasm32-unknown-emscripten -emit-obj -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name System.Runtime.Tests.dll.bc -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-feature +exception-handling -mllvm -wasm-enable-eh -target-feature +multivalue -target-feature +reference-types -target-feature +exception-handling -exception-model=wasm -target-feature +multivalue -target-feature +reference-types -target-cpu generic -target-feature +simd128 -debugger-tuning=gdb "-fdebug-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -v "-fcoverage-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -resource-dir "C:\\helix\\work\\correlation\\build\\emsdk\\lib\\clang\\19" -Oz -Werror=implicit-function-declaration -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -exception-model=wasm -vectorize-slp "-iwithsysroot/include\\fakesdl" "-iwithsysroot/include\\compat" -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr -o "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp" -x ir "C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang -cc1 version 19.1.0 based upon LLVM 19.1.0 default target x86_64-pc-windows-msvc [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : LLVM ERROR: out of memory [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Allocation failed [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Stack dump: [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 0.	Program arguments: C:/helix/work/correlation/build/emsdk/bin\\clang.exe -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\\helix\\work\\correlation\\build\\emsdk\\emscripten\\cache\\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\\fakesdl -Xclang -iwithsysroot/include\\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc -o C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 1.	Code generation [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 2.	Running pass 'Function Pass Manager' on module 'C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc'. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 3.	Running pass 'Slot index numbering' on function '@System_Runtime_Tests_System_Tests_HalfTests__RootN_TestDatad__88_MoveNext' [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Exception Code: 0x80000003 [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #0 0x00007ff6c5cfd795 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11dd795) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #1 0x00007ff6c7de4cbd (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32c4cbd) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #2 0x00007ff6c7dd5048 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32b5048) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #3 0x00007ff6c5cf76c9 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d76c9) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #4 0x00007ff6c5cf7582 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d7582) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #5 0x00007ff6c7dce18d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32ae18d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #6 0x00007ff6c7deac61 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32cac61) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #7 0x00007ff6c7dcf53e (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32af53e) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #8 0x00007ff6c4c3adaf (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11adaf) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #9 0x00007ff6c5699469 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb79469) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #10 0x00007ff6c569a66d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb7a66d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #11 0x00007ff6c55dda6f (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xabda6f) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #12 0x00007ff6c5921af8 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01af8) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #13 0x00007ff6c5921d25 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01d25) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #14 0x00007ff6c5921f9c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01f9c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #15 0x00007ff6c59217e0 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe017e0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #16 0x00007ff6c5f64cf6 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1444cf6) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #17 0x00007ff6c5f63fda (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1443fda) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #18 0x00007ff6c5f647db (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x14447db) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #19 0x00007ff6c6466e12 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1946e12) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #20 0x00007ff6c6695962 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b75962) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #21 0x00007ff6c667eb09 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b5eb09) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #22 0x00007ff6c6717e90 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1bf7e90) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #23 0x00007ff6c4bb1c99 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x91c99) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #24 0x00007ff6c4bab04a (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8b04a) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #25 0x00007ff6c655ed65 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3ed65) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #26 0x00007ff6c5cf0808 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d0808) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #27 0x00007ff6c655f425 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3f425) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #28 0x00007ff6c64ab6a2 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b6a2) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #29 0x00007ff6c64ab98c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b98c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #30 0x00007ff6c648dd0d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x196dd0d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #31 0x00007ff6c4bad2f3 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8d2f3) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #32 0x00007ff6c4bbb8e4 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x9b8e4) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #33 0x00007ff6c7dcee08 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32aee08) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #34 0x00007ffc21ee4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #35 0x00007ffc56bdedcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: error: clang frontend command failed due to signal (use -v to see invocation) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs. [took 85.11s] [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]

      Known issue validation
      Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1161305
      Error message validated:[error : LLVM ERROR: out of memory]
      Result validation: ✅ Known issue matched with the provided build.
      Validation performed at: 9/30/2025 5:35:50 AM UTC
      Report
      BuildDefinitionTestPull Request
      1161477dotnet/runtimeWasmTestOnChrome-ST-System.Threading.Timer.Tests.WorkItemExecution
      1161092dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution#120231
      1161398dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120097
      1161305dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120242
      Summary
      24-Hour Hit Count7-Day Hit Count1-Month Count
      444
      Report
      Summary
      24-Hour Hit Count7-Day Hit Count1-Month Count
      000
      Metadata
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        Labels
        Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
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          Skip to content
          [wasm AOT] error : LLVM ERROR: out of memory #120245
          Open
          Open
          [wasm AOT] error : LLVM ERROR: out of memory#120245
          Labels
          Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
          Milestone
          Future
          Description
          @jkotas
          jkotas
          opened on Sep 30, 2025
          Build Information
          Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1161305
          
Build error leg or test failing: WasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution
          
Pull request: #120242
          Error Message
          Fill the error message using step by step known issues guidance.
          {
"ErrorMessage": "error : LLVM ERROR: out of memory",
"ErrorPattern": "",
"BuildRetry": true,
"ExcludeConsoleLog": false
}
           [48/74] System.Runtime.Intrinsics.dll.bc -> System.Runtime.Intrinsics.dll.o [took 0.98s]
[49/74] System.Runtime.Loader.dll.bc -> System.Runtime.Loader.dll.o [took 0.84s]
[50/74] System.Runtime.Numerics.dll.bc -> System.Runtime.Numerics.dll.o [took 5.00s]
[51/74] System.Runtime.Serialization.Formatters.dll.bc -> System.Runtime.Serialization.Formatters.dll.o [took 3.29s]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Failed to compile C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -> C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.o [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>C:\Windows\System32\chcp.com 65001 1>nul [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>setlocal [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel=dummy [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel= [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>"C:\helix\work\correlation\build\emsdk\emscripten\emcc" "@C:\helix\work\correlation\build\microsoft.netcore.app.runtime.browser-wasm\runtimes\browser-wasm\native\src\emcc-default.rsp" -msimd128 "@C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\emcc-compile-bc.rsp" -c -o "C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp" "C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:/helix/work/correlation/build/emsdk/bin\clang.exe" -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\helix\work\correlation\build\emsdk\emscripten\cache\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\fakesdl -Xclang -iwithsysroot/include\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -o C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : (in-process) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:\\helix\\work\\correlation\\build\\emsdk\\bin\\clang.exe" -cc1 -triple wasm32-unknown-emscripten -emit-obj -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name System.Runtime.Tests.dll.bc -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-feature +exception-handling -mllvm -wasm-enable-eh -target-feature +multivalue -target-feature +reference-types -target-feature +exception-handling -exception-model=wasm -target-feature +multivalue -target-feature +reference-types -target-cpu generic -target-feature +simd128 -debugger-tuning=gdb "-fdebug-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -v "-fcoverage-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -resource-dir "C:\\helix\\work\\correlation\\build\\emsdk\\lib\\clang\\19" -Oz -Werror=implicit-function-declaration -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -exception-model=wasm -vectorize-slp "-iwithsysroot/include\\fakesdl" "-iwithsysroot/include\\compat" -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr -o "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp" -x ir "C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang -cc1 version 19.1.0 based upon LLVM 19.1.0 default target x86_64-pc-windows-msvc [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : LLVM ERROR: out of memory [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Allocation failed [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Stack dump: [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 0.	Program arguments: C:/helix/work/correlation/build/emsdk/bin\\clang.exe -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\\helix\\work\\correlation\\build\\emsdk\\emscripten\\cache\\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\\fakesdl -Xclang -iwithsysroot/include\\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc -o C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 1.	Code generation [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 2.	Running pass 'Function Pass Manager' on module 'C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc'. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 3.	Running pass 'Slot index numbering' on function '@System_Runtime_Tests_System_Tests_HalfTests__RootN_TestDatad__88_MoveNext' [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Exception Code: 0x80000003 [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #0 0x00007ff6c5cfd795 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11dd795) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #1 0x00007ff6c7de4cbd (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32c4cbd) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #2 0x00007ff6c7dd5048 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32b5048) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #3 0x00007ff6c5cf76c9 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d76c9) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #4 0x00007ff6c5cf7582 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d7582) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #5 0x00007ff6c7dce18d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32ae18d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #6 0x00007ff6c7deac61 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32cac61) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #7 0x00007ff6c7dcf53e (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32af53e) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #8 0x00007ff6c4c3adaf (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11adaf) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #9 0x00007ff6c5699469 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb79469) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #10 0x00007ff6c569a66d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb7a66d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #11 0x00007ff6c55dda6f (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xabda6f) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #12 0x00007ff6c5921af8 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01af8) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #13 0x00007ff6c5921d25 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01d25) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #14 0x00007ff6c5921f9c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01f9c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #15 0x00007ff6c59217e0 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe017e0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #16 0x00007ff6c5f64cf6 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1444cf6) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #17 0x00007ff6c5f63fda (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1443fda) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #18 0x00007ff6c5f647db (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x14447db) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #19 0x00007ff6c6466e12 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1946e12) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #20 0x00007ff6c6695962 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b75962) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #21 0x00007ff6c667eb09 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b5eb09) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #22 0x00007ff6c6717e90 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1bf7e90) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #23 0x00007ff6c4bb1c99 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x91c99) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #24 0x00007ff6c4bab04a (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8b04a) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #25 0x00007ff6c655ed65 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3ed65) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #26 0x00007ff6c5cf0808 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d0808) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #27 0x00007ff6c655f425 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3f425) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #28 0x00007ff6c64ab6a2 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b6a2) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #29 0x00007ff6c64ab98c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b98c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #30 0x00007ff6c648dd0d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x196dd0d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #31 0x00007ff6c4bad2f3 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8d2f3) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #32 0x00007ff6c4bbb8e4 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x9b8e4) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #33 0x00007ff6c7dcee08 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32aee08) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #34 0x00007ffc21ee4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #35 0x00007ffc56bdedcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: error: clang frontend command failed due to signal (use -v to see invocation) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs. [took 85.11s] [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]

          Known issue validation
          Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1161305
          Error message validated:[error : LLVM ERROR: out of memory]
          Result validation: ✅ Known issue matched with the provided build.
          Validation performed at: 9/30/2025 5:35:50 AM UTC
          Report
          BuildDefinitionTestPull Request
          1161477dotnet/runtimeWasmTestOnChrome-ST-System.Threading.Timer.Tests.WorkItemExecution
          1161092dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution#120231
          1161398dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120097
          1161305dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120242
          Summary
          24-Hour Hit Count7-Day Hit Count1-Month Count
          444
          Report
          Summary
          24-Hour Hit Count7-Day Hit Count1-Month Count
          000
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              Skip to content
              [wasm AOT] error : LLVM ERROR: out of memory #120245
              Open
              Open
              [wasm AOT] error : LLVM ERROR: out of memory#120245
              Labels
              Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
              Milestone
              Future
              Description
              @jkotas
              jkotas
              opened on Sep 30, 2025
              Build Information
              Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1161305
              
Build error leg or test failing: WasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution
              
Pull request: #120242
              Error Message
              Fill the error message using step by step known issues guidance.
              {
"ErrorMessage": "error : LLVM ERROR: out of memory",
"ErrorPattern": "",
"BuildRetry": true,
"ExcludeConsoleLog": false
}
               [48/74] System.Runtime.Intrinsics.dll.bc -> System.Runtime.Intrinsics.dll.o [took 0.98s]
[49/74] System.Runtime.Loader.dll.bc -> System.Runtime.Loader.dll.o [took 0.84s]
[50/74] System.Runtime.Numerics.dll.bc -> System.Runtime.Numerics.dll.o [took 5.00s]
[51/74] System.Runtime.Serialization.Formatters.dll.bc -> System.Runtime.Serialization.Formatters.dll.o [took 3.29s]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Failed to compile C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -> C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.o [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>C:\Windows\System32\chcp.com 65001 1>nul [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>setlocal [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel=dummy [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel= [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>"C:\helix\work\correlation\build\emsdk\emscripten\emcc" "@C:\helix\work\correlation\build\microsoft.netcore.app.runtime.browser-wasm\runtimes\browser-wasm\native\src\emcc-default.rsp" -msimd128 "@C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\emcc-compile-bc.rsp" -c -o "C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp" "C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:/helix/work/correlation/build/emsdk/bin\clang.exe" -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\helix\work\correlation\build\emsdk\emscripten\cache\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\fakesdl -Xclang -iwithsysroot/include\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -o C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : (in-process) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:\\helix\\work\\correlation\\build\\emsdk\\bin\\clang.exe" -cc1 -triple wasm32-unknown-emscripten -emit-obj -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name System.Runtime.Tests.dll.bc -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-feature +exception-handling -mllvm -wasm-enable-eh -target-feature +multivalue -target-feature +reference-types -target-feature +exception-handling -exception-model=wasm -target-feature +multivalue -target-feature +reference-types -target-cpu generic -target-feature +simd128 -debugger-tuning=gdb "-fdebug-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -v "-fcoverage-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -resource-dir "C:\\helix\\work\\correlation\\build\\emsdk\\lib\\clang\\19" -Oz -Werror=implicit-function-declaration -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -exception-model=wasm -vectorize-slp "-iwithsysroot/include\\fakesdl" "-iwithsysroot/include\\compat" -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr -o "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp" -x ir "C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang -cc1 version 19.1.0 based upon LLVM 19.1.0 default target x86_64-pc-windows-msvc [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : LLVM ERROR: out of memory [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Allocation failed [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Stack dump: [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 0.	Program arguments: C:/helix/work/correlation/build/emsdk/bin\\clang.exe -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\\helix\\work\\correlation\\build\\emsdk\\emscripten\\cache\\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\\fakesdl -Xclang -iwithsysroot/include\\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc -o C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 1.	Code generation [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 2.	Running pass 'Function Pass Manager' on module 'C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc'. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 3.	Running pass 'Slot index numbering' on function '@System_Runtime_Tests_System_Tests_HalfTests__RootN_TestDatad__88_MoveNext' [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Exception Code: 0x80000003 [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #0 0x00007ff6c5cfd795 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11dd795) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #1 0x00007ff6c7de4cbd (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32c4cbd) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #2 0x00007ff6c7dd5048 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32b5048) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #3 0x00007ff6c5cf76c9 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d76c9) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #4 0x00007ff6c5cf7582 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d7582) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #5 0x00007ff6c7dce18d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32ae18d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #6 0x00007ff6c7deac61 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32cac61) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #7 0x00007ff6c7dcf53e (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32af53e) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #8 0x00007ff6c4c3adaf (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11adaf) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #9 0x00007ff6c5699469 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb79469) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #10 0x00007ff6c569a66d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb7a66d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #11 0x00007ff6c55dda6f (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xabda6f) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #12 0x00007ff6c5921af8 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01af8) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #13 0x00007ff6c5921d25 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01d25) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #14 0x00007ff6c5921f9c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01f9c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #15 0x00007ff6c59217e0 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe017e0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #16 0x00007ff6c5f64cf6 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1444cf6) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #17 0x00007ff6c5f63fda (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1443fda) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #18 0x00007ff6c5f647db (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x14447db) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #19 0x00007ff6c6466e12 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1946e12) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #20 0x00007ff6c6695962 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b75962) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #21 0x00007ff6c667eb09 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b5eb09) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #22 0x00007ff6c6717e90 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1bf7e90) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #23 0x00007ff6c4bb1c99 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x91c99) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #24 0x00007ff6c4bab04a (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8b04a) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #25 0x00007ff6c655ed65 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3ed65) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #26 0x00007ff6c5cf0808 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d0808) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #27 0x00007ff6c655f425 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3f425) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #28 0x00007ff6c64ab6a2 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b6a2) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #29 0x00007ff6c64ab98c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b98c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #30 0x00007ff6c648dd0d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x196dd0d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #31 0x00007ff6c4bad2f3 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8d2f3) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #32 0x00007ff6c4bbb8e4 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x9b8e4) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #33 0x00007ff6c7dcee08 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32aee08) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #34 0x00007ffc21ee4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #35 0x00007ffc56bdedcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: error: clang frontend command failed due to signal (use -v to see invocation) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs. [took 85.11s] [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]

              Known issue validation
              Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1161305
              Error message validated:[error : LLVM ERROR: out of memory]
              Result validation: ✅ Known issue matched with the provided build.
              Validation performed at: 9/30/2025 5:35:50 AM UTC
              Report
              BuildDefinitionTestPull Request
              1161477dotnet/runtimeWasmTestOnChrome-ST-System.Threading.Timer.Tests.WorkItemExecution
              1161092dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution#120231
              1161398dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120097
              1161305dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120242
              Summary
              24-Hour Hit Count7-Day Hit Count1-Month Count
              444
              Report
              Summary
              24-Hour Hit Count7-Day Hit Count1-Month Count
              000
              Metadata
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

                  Skip to content
                  [wasm AOT] error : LLVM ERROR: out of memory #120245
                  Open
                  Open
                  [wasm AOT] error : LLVM ERROR: out of memory#120245
                  Labels
                  Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
                  Milestone
                  Future
                  Description
                  @jkotas
                  jkotas
                  opened on Sep 30, 2025
                  Build Information
                  Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1161305
                  
Build error leg or test failing: WasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution
                  
Pull request: #120242
                  Error Message
                  Fill the error message using step by step known issues guidance.
                  {
"ErrorMessage": "error : LLVM ERROR: out of memory",
"ErrorPattern": "",
"BuildRetry": true,
"ExcludeConsoleLog": false
}
                   [48/74] System.Runtime.Intrinsics.dll.bc -> System.Runtime.Intrinsics.dll.o [took 0.98s]
[49/74] System.Runtime.Loader.dll.bc -> System.Runtime.Loader.dll.o [took 0.84s]
[50/74] System.Runtime.Numerics.dll.bc -> System.Runtime.Numerics.dll.o [took 5.00s]
[51/74] System.Runtime.Serialization.Formatters.dll.bc -> System.Runtime.Serialization.Formatters.dll.o [took 3.29s]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Failed to compile C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -> C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.o [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>C:\Windows\System32\chcp.com 65001 1>nul [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>setlocal [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel=dummy [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel= [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>"C:\helix\work\correlation\build\emsdk\emscripten\emcc" "@C:\helix\work\correlation\build\microsoft.netcore.app.runtime.browser-wasm\runtimes\browser-wasm\native\src\emcc-default.rsp" -msimd128 "@C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\emcc-compile-bc.rsp" -c -o "C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp" "C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:/helix/work/correlation/build/emsdk/bin\clang.exe" -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\helix\work\correlation\build\emsdk\emscripten\cache\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\fakesdl -Xclang -iwithsysroot/include\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -o C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : (in-process) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:\\helix\\work\\correlation\\build\\emsdk\\bin\\clang.exe" -cc1 -triple wasm32-unknown-emscripten -emit-obj -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name System.Runtime.Tests.dll.bc -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-feature +exception-handling -mllvm -wasm-enable-eh -target-feature +multivalue -target-feature +reference-types -target-feature +exception-handling -exception-model=wasm -target-feature +multivalue -target-feature +reference-types -target-cpu generic -target-feature +simd128 -debugger-tuning=gdb "-fdebug-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -v "-fcoverage-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -resource-dir "C:\\helix\\work\\correlation\\build\\emsdk\\lib\\clang\\19" -Oz -Werror=implicit-function-declaration -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -exception-model=wasm -vectorize-slp "-iwithsysroot/include\\fakesdl" "-iwithsysroot/include\\compat" -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr -o "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp" -x ir "C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang -cc1 version 19.1.0 based upon LLVM 19.1.0 default target x86_64-pc-windows-msvc [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : LLVM ERROR: out of memory [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Allocation failed [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Stack dump: [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 0.	Program arguments: C:/helix/work/correlation/build/emsdk/bin\\clang.exe -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\\helix\\work\\correlation\\build\\emsdk\\emscripten\\cache\\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\\fakesdl -Xclang -iwithsysroot/include\\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc -o C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 1.	Code generation [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 2.	Running pass 'Function Pass Manager' on module 'C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc'. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 3.	Running pass 'Slot index numbering' on function '@System_Runtime_Tests_System_Tests_HalfTests__RootN_TestDatad__88_MoveNext' [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Exception Code: 0x80000003 [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #0 0x00007ff6c5cfd795 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11dd795) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #1 0x00007ff6c7de4cbd (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32c4cbd) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #2 0x00007ff6c7dd5048 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32b5048) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #3 0x00007ff6c5cf76c9 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d76c9) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #4 0x00007ff6c5cf7582 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d7582) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #5 0x00007ff6c7dce18d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32ae18d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #6 0x00007ff6c7deac61 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32cac61) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #7 0x00007ff6c7dcf53e (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32af53e) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #8 0x00007ff6c4c3adaf (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11adaf) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #9 0x00007ff6c5699469 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb79469) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #10 0x00007ff6c569a66d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb7a66d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #11 0x00007ff6c55dda6f (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xabda6f) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #12 0x00007ff6c5921af8 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01af8) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #13 0x00007ff6c5921d25 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01d25) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #14 0x00007ff6c5921f9c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01f9c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #15 0x00007ff6c59217e0 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe017e0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #16 0x00007ff6c5f64cf6 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1444cf6) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #17 0x00007ff6c5f63fda (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1443fda) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #18 0x00007ff6c5f647db (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x14447db) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #19 0x00007ff6c6466e12 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1946e12) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #20 0x00007ff6c6695962 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b75962) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #21 0x00007ff6c667eb09 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b5eb09) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #22 0x00007ff6c6717e90 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1bf7e90) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #23 0x00007ff6c4bb1c99 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x91c99) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #24 0x00007ff6c4bab04a (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8b04a) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #25 0x00007ff6c655ed65 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3ed65) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #26 0x00007ff6c5cf0808 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d0808) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #27 0x00007ff6c655f425 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3f425) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #28 0x00007ff6c64ab6a2 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b6a2) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #29 0x00007ff6c64ab98c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b98c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #30 0x00007ff6c648dd0d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x196dd0d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #31 0x00007ff6c4bad2f3 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8d2f3) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #32 0x00007ff6c4bbb8e4 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x9b8e4) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #33 0x00007ff6c7dcee08 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32aee08) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #34 0x00007ffc21ee4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #35 0x00007ffc56bdedcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: error: clang frontend command failed due to signal (use -v to see invocation) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs. [took 85.11s] [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]

                  Known issue validation
                  Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1161305
                  Error message validated:[error : LLVM ERROR: out of memory]
                  Result validation: ✅ Known issue matched with the provided build.
                  Validation performed at: 9/30/2025 5:35:50 AM UTC
                  Report
                  BuildDefinitionTestPull Request
                  1161477dotnet/runtimeWasmTestOnChrome-ST-System.Threading.Timer.Tests.WorkItemExecution
                  1161092dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution#120231
                  1161398dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120097
                  1161305dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120242
                  Summary
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                    Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                      Skip to content
                      [wasm AOT] error : LLVM ERROR: out of memory #120245
                      Open
                      Open
                      [wasm AOT] error : LLVM ERROR: out of memory#120245
                      Labels
                      Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
                      Milestone
                      Future
                      Description
                      @jkotas
                      jkotas
                      opened on Sep 30, 2025
                      Build Information
                      Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1161305
                      
Build error leg or test failing: WasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution
                      
Pull request: #120242
                      Error Message
                      Fill the error message using step by step known issues guidance.
                      {
"ErrorMessage": "error : LLVM ERROR: out of memory",
"ErrorPattern": "",
"BuildRetry": true,
"ExcludeConsoleLog": false
}
                       [48/74] System.Runtime.Intrinsics.dll.bc -> System.Runtime.Intrinsics.dll.o [took 0.98s]
[49/74] System.Runtime.Loader.dll.bc -> System.Runtime.Loader.dll.o [took 0.84s]
[50/74] System.Runtime.Numerics.dll.bc -> System.Runtime.Numerics.dll.o [took 5.00s]
[51/74] System.Runtime.Serialization.Formatters.dll.bc -> System.Runtime.Serialization.Formatters.dll.o [took 3.29s]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Failed to compile C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -> C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.o [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>C:\Windows\System32\chcp.com 65001 1>nul [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>setlocal [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel=dummy [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel= [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>"C:\helix\work\correlation\build\emsdk\emscripten\emcc" "@C:\helix\work\correlation\build\microsoft.netcore.app.runtime.browser-wasm\runtimes\browser-wasm\native\src\emcc-default.rsp" -msimd128 "@C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\emcc-compile-bc.rsp" -c -o "C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp" "C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:/helix/work/correlation/build/emsdk/bin\clang.exe" -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\helix\work\correlation\build\emsdk\emscripten\cache\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\fakesdl -Xclang -iwithsysroot/include\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -o C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : (in-process) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:\\helix\\work\\correlation\\build\\emsdk\\bin\\clang.exe" -cc1 -triple wasm32-unknown-emscripten -emit-obj -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name System.Runtime.Tests.dll.bc -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-feature +exception-handling -mllvm -wasm-enable-eh -target-feature +multivalue -target-feature +reference-types -target-feature +exception-handling -exception-model=wasm -target-feature +multivalue -target-feature +reference-types -target-cpu generic -target-feature +simd128 -debugger-tuning=gdb "-fdebug-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -v "-fcoverage-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -resource-dir "C:\\helix\\work\\correlation\\build\\emsdk\\lib\\clang\\19" -Oz -Werror=implicit-function-declaration -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -exception-model=wasm -vectorize-slp "-iwithsysroot/include\\fakesdl" "-iwithsysroot/include\\compat" -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr -o "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp" -x ir "C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang -cc1 version 19.1.0 based upon LLVM 19.1.0 default target x86_64-pc-windows-msvc [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : LLVM ERROR: out of memory [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Allocation failed [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Stack dump: [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 0.	Program arguments: C:/helix/work/correlation/build/emsdk/bin\\clang.exe -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\\helix\\work\\correlation\\build\\emsdk\\emscripten\\cache\\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\\fakesdl -Xclang -iwithsysroot/include\\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc -o C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 1.	Code generation [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 2.	Running pass 'Function Pass Manager' on module 'C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc'. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 3.	Running pass 'Slot index numbering' on function '@System_Runtime_Tests_System_Tests_HalfTests__RootN_TestDatad__88_MoveNext' [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Exception Code: 0x80000003 [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #0 0x00007ff6c5cfd795 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11dd795) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #1 0x00007ff6c7de4cbd (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32c4cbd) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #2 0x00007ff6c7dd5048 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32b5048) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #3 0x00007ff6c5cf76c9 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d76c9) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #4 0x00007ff6c5cf7582 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d7582) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #5 0x00007ff6c7dce18d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32ae18d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #6 0x00007ff6c7deac61 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32cac61) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #7 0x00007ff6c7dcf53e (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32af53e) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #8 0x00007ff6c4c3adaf (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11adaf) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #9 0x00007ff6c5699469 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb79469) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #10 0x00007ff6c569a66d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb7a66d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #11 0x00007ff6c55dda6f (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xabda6f) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #12 0x00007ff6c5921af8 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01af8) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #13 0x00007ff6c5921d25 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01d25) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #14 0x00007ff6c5921f9c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01f9c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #15 0x00007ff6c59217e0 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe017e0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #16 0x00007ff6c5f64cf6 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1444cf6) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #17 0x00007ff6c5f63fda (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1443fda) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #18 0x00007ff6c5f647db (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x14447db) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #19 0x00007ff6c6466e12 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1946e12) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #20 0x00007ff6c6695962 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b75962) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #21 0x00007ff6c667eb09 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b5eb09) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #22 0x00007ff6c6717e90 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1bf7e90) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #23 0x00007ff6c4bb1c99 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x91c99) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #24 0x00007ff6c4bab04a (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8b04a) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #25 0x00007ff6c655ed65 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3ed65) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #26 0x00007ff6c5cf0808 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d0808) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #27 0x00007ff6c655f425 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3f425) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #28 0x00007ff6c64ab6a2 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b6a2) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #29 0x00007ff6c64ab98c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b98c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #30 0x00007ff6c648dd0d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x196dd0d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #31 0x00007ff6c4bad2f3 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8d2f3) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #32 0x00007ff6c4bbb8e4 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x9b8e4) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #33 0x00007ff6c7dcee08 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32aee08) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #34 0x00007ffc21ee4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #35 0x00007ffc56bdedcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: error: clang frontend command failed due to signal (use -v to see invocation) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs. [took 85.11s] [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]

                      Known issue validation
                      Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1161305
                      Error message validated:[error : LLVM ERROR: out of memory]
                      Result validation: ✅ Known issue matched with the provided build.
                      Validation performed at: 9/30/2025 5:35:50 AM UTC
                      Report
                      BuildDefinitionTestPull Request
                      1161477dotnet/runtimeWasmTestOnChrome-ST-System.Threading.Timer.Tests.WorkItemExecution
                      1161092dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution#120231
                      1161398dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120097
                      1161305dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120242
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                        Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
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, 'i');
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                          Skip to content
                          [wasm AOT] error : LLVM ERROR: out of memory #120245
                          Open
                          Open
                          [wasm AOT] error : LLVM ERROR: out of memory#120245
                          Labels
                          Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
                          Milestone
                          Future
                          Description
                          @jkotas
                          jkotas
                          opened on Sep 30, 2025
                          Build Information
                          Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1161305
                          
Build error leg or test failing: WasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution
                          
Pull request: #120242
                          Error Message
                          Fill the error message using step by step known issues guidance.
                          {
"ErrorMessage": "error : LLVM ERROR: out of memory",
"ErrorPattern": "",
"BuildRetry": true,
"ExcludeConsoleLog": false
}
                           [48/74] System.Runtime.Intrinsics.dll.bc -> System.Runtime.Intrinsics.dll.o [took 0.98s]
[49/74] System.Runtime.Loader.dll.bc -> System.Runtime.Loader.dll.o [took 0.84s]
[50/74] System.Runtime.Numerics.dll.bc -> System.Runtime.Numerics.dll.o [took 5.00s]
[51/74] System.Runtime.Serialization.Formatters.dll.bc -> System.Runtime.Serialization.Formatters.dll.o [took 3.29s]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Failed to compile C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -> C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.o [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>C:\Windows\System32\chcp.com 65001 1>nul [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>setlocal [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel=dummy [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel= [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>"C:\helix\work\correlation\build\emsdk\emscripten\emcc" "@C:\helix\work\correlation\build\microsoft.netcore.app.runtime.browser-wasm\runtimes\browser-wasm\native\src\emcc-default.rsp" -msimd128 "@C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\emcc-compile-bc.rsp" -c -o "C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp" "C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:/helix/work/correlation/build/emsdk/bin\clang.exe" -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\helix\work\correlation\build\emsdk\emscripten\cache\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\fakesdl -Xclang -iwithsysroot/include\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -o C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : (in-process) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:\\helix\\work\\correlation\\build\\emsdk\\bin\\clang.exe" -cc1 -triple wasm32-unknown-emscripten -emit-obj -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name System.Runtime.Tests.dll.bc -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-feature +exception-handling -mllvm -wasm-enable-eh -target-feature +multivalue -target-feature +reference-types -target-feature +exception-handling -exception-model=wasm -target-feature +multivalue -target-feature +reference-types -target-cpu generic -target-feature +simd128 -debugger-tuning=gdb "-fdebug-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -v "-fcoverage-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -resource-dir "C:\\helix\\work\\correlation\\build\\emsdk\\lib\\clang\\19" -Oz -Werror=implicit-function-declaration -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -exception-model=wasm -vectorize-slp "-iwithsysroot/include\\fakesdl" "-iwithsysroot/include\\compat" -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr -o "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp" -x ir "C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang -cc1 version 19.1.0 based upon LLVM 19.1.0 default target x86_64-pc-windows-msvc [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : LLVM ERROR: out of memory [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Allocation failed [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Stack dump: [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 0.	Program arguments: C:/helix/work/correlation/build/emsdk/bin\\clang.exe -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\\helix\\work\\correlation\\build\\emsdk\\emscripten\\cache\\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\\fakesdl -Xclang -iwithsysroot/include\\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc -o C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 1.	Code generation [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 2.	Running pass 'Function Pass Manager' on module 'C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc'. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 3.	Running pass 'Slot index numbering' on function '@System_Runtime_Tests_System_Tests_HalfTests__RootN_TestDatad__88_MoveNext' [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Exception Code: 0x80000003 [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #0 0x00007ff6c5cfd795 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11dd795) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #1 0x00007ff6c7de4cbd (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32c4cbd) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #2 0x00007ff6c7dd5048 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32b5048) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #3 0x00007ff6c5cf76c9 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d76c9) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #4 0x00007ff6c5cf7582 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d7582) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #5 0x00007ff6c7dce18d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32ae18d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #6 0x00007ff6c7deac61 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32cac61) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #7 0x00007ff6c7dcf53e (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32af53e) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #8 0x00007ff6c4c3adaf (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11adaf) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #9 0x00007ff6c5699469 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb79469) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #10 0x00007ff6c569a66d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb7a66d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #11 0x00007ff6c55dda6f (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xabda6f) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #12 0x00007ff6c5921af8 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01af8) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #13 0x00007ff6c5921d25 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01d25) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #14 0x00007ff6c5921f9c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01f9c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #15 0x00007ff6c59217e0 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe017e0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #16 0x00007ff6c5f64cf6 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1444cf6) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #17 0x00007ff6c5f63fda (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1443fda) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #18 0x00007ff6c5f647db (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x14447db) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #19 0x00007ff6c6466e12 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1946e12) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #20 0x00007ff6c6695962 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b75962) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #21 0x00007ff6c667eb09 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b5eb09) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #22 0x00007ff6c6717e90 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1bf7e90) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #23 0x00007ff6c4bb1c99 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x91c99) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #24 0x00007ff6c4bab04a (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8b04a) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #25 0x00007ff6c655ed65 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3ed65) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #26 0x00007ff6c5cf0808 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d0808) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #27 0x00007ff6c655f425 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3f425) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #28 0x00007ff6c64ab6a2 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b6a2) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #29 0x00007ff6c64ab98c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b98c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #30 0x00007ff6c648dd0d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x196dd0d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #31 0x00007ff6c4bad2f3 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8d2f3) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #32 0x00007ff6c4bbb8e4 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x9b8e4) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #33 0x00007ff6c7dcee08 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32aee08) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #34 0x00007ffc21ee4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #35 0x00007ffc56bdedcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: error: clang frontend command failed due to signal (use -v to see invocation) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs. [took 85.11s] [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]

                          Known issue validation
                          Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1161305
                          Error message validated:[error : LLVM ERROR: out of memory]
                          Result validation: ✅ Known issue matched with the provided build.
                          Validation performed at: 9/30/2025 5:35:50 AM UTC
                          Report
                          BuildDefinitionTestPull Request
                          1161477dotnet/runtimeWasmTestOnChrome-ST-System.Threading.Timer.Tests.WorkItemExecution
                          1161092dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution#120231
                          1161398dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120097
                          1161305dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120242
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
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var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

                              Skip to content
                              [wasm AOT] error : LLVM ERROR: out of memory #120245
                              Open
                              Open
                              [wasm AOT] error : LLVM ERROR: out of memory#120245
                              Labels
                              Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
                              Milestone
                              Future
                              Description
                              @jkotas
                              jkotas
                              opened on Sep 30, 2025
                              Build Information
                              Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1161305
                              
Build error leg or test failing: WasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution
                              
Pull request: #120242
                              Error Message
                              Fill the error message using step by step known issues guidance.
                              {
"ErrorMessage": "error : LLVM ERROR: out of memory",
"ErrorPattern": "",
"BuildRetry": true,
"ExcludeConsoleLog": false
}
                               [48/74] System.Runtime.Intrinsics.dll.bc -> System.Runtime.Intrinsics.dll.o [took 0.98s]
[49/74] System.Runtime.Loader.dll.bc -> System.Runtime.Loader.dll.o [took 0.84s]
[50/74] System.Runtime.Numerics.dll.bc -> System.Runtime.Numerics.dll.o [took 5.00s]
[51/74] System.Runtime.Serialization.Formatters.dll.bc -> System.Runtime.Serialization.Formatters.dll.o [took 3.29s]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Failed to compile C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -> C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.o [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>C:\Windows\System32\chcp.com 65001 1>nul [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>setlocal [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel=dummy [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>set errorlevel= [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : C:\helix\work\workitem\e\publish>"C:\helix\work\correlation\build\emsdk\emscripten\emcc" "@C:\helix\work\correlation\build\microsoft.netcore.app.runtime.browser-wasm\runtimes\browser-wasm\native\src\emcc-default.rsp" -msimd128 "@C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\emcc-compile-bc.rsp" -c -o "C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp" "C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:/helix/work/correlation/build/emsdk/bin\clang.exe" -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\helix\work\correlation\build\emsdk\emscripten\cache\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\fakesdl -Xclang -iwithsysroot/include\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc -o C:\Users\ContainerAdministrator\AppData\Local\Temp\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : (in-process) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : "C:\\helix\\work\\correlation\\build\\emsdk\\bin\\clang.exe" -cc1 -triple wasm32-unknown-emscripten -emit-obj -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name System.Runtime.Tests.dll.bc -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-feature +exception-handling -mllvm -wasm-enable-eh -target-feature +multivalue -target-feature +reference-types -target-feature +exception-handling -exception-model=wasm -target-feature +multivalue -target-feature +reference-types -target-cpu generic -target-feature +simd128 -debugger-tuning=gdb "-fdebug-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -v "-fcoverage-compilation-dir=C:\\helix\\work\\workitem\\e\\publish" -resource-dir "C:\\helix\\work\\correlation\\build\\emsdk\\lib\\clang\\19" -Oz -Werror=implicit-function-declaration -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -exception-model=wasm -vectorize-slp "-iwithsysroot/include\\fakesdl" "-iwithsysroot/include\\compat" -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr -o "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp" -x ir "C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc" [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang -cc1 version 19.1.0 based upon LLVM 19.1.0 default target x86_64-pc-windows-msvc [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : LLVM ERROR: out of memory [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Allocation failed [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Stack dump: [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 0.	Program arguments: C:/helix/work/correlation/build/emsdk/bin\\clang.exe -target wasm32-unknown-emscripten -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr --sysroot=C:\\helix\\work\\correlation\\build\\emsdk\\emscripten\\cache\\sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include\\fakesdl -Xclang -iwithsysroot/include\\compat -msimd128 -Oz -v -fwasm-exceptions -c C:\\helix\\work\\workitem\\e\\wasm_build\\obj\\wasm\\for-build\\System.Runtime.Tests.dll.bc -o C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\tmp3fwikd.tmp [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 1.	Code generation [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 2.	Running pass 'Function Pass Manager' on module 'C:\helix\work\workitem\e\wasm_build\obj\wasm\for-build\System.Runtime.Tests.dll.bc'. [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : 3.	Running pass 'Slot index numbering' on function '@System_Runtime_Tests_System_Tests_HalfTests__RootN_TestDatad__88_MoveNext' [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Exception Code: 0x80000003 [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #0 0x00007ff6c5cfd795 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11dd795) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #1 0x00007ff6c7de4cbd (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32c4cbd) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #2 0x00007ff6c7dd5048 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32b5048) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #3 0x00007ff6c5cf76c9 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d76c9) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #4 0x00007ff6c5cf7582 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d7582) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #5 0x00007ff6c7dce18d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32ae18d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #6 0x00007ff6c7deac61 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32cac61) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #7 0x00007ff6c7dcf53e (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32af53e) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #8 0x00007ff6c4c3adaf (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11adaf) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #9 0x00007ff6c5699469 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb79469) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #10 0x00007ff6c569a66d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xb7a66d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #11 0x00007ff6c55dda6f (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xabda6f) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #12 0x00007ff6c5921af8 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01af8) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #13 0x00007ff6c5921d25 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01d25) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #14 0x00007ff6c5921f9c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe01f9c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #15 0x00007ff6c59217e0 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0xe017e0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #16 0x00007ff6c5f64cf6 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1444cf6) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #17 0x00007ff6c5f63fda (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1443fda) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #18 0x00007ff6c5f647db (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x14447db) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #19 0x00007ff6c6466e12 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1946e12) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #20 0x00007ff6c6695962 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b75962) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #21 0x00007ff6c667eb09 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1b5eb09) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #22 0x00007ff6c6717e90 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1bf7e90) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #23 0x00007ff6c4bb1c99 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x91c99) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #24 0x00007ff6c4bab04a (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8b04a) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #25 0x00007ff6c655ed65 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3ed65) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #26 0x00007ff6c5cf0808 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x11d0808) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #27 0x00007ff6c655f425 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x1a3f425) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #28 0x00007ff6c64ab6a2 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b6a2) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #29 0x00007ff6c64ab98c (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x198b98c) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #30 0x00007ff6c648dd0d (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x196dd0d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #31 0x00007ff6c4bad2f3 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x8d2f3) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #32 0x00007ff6c4bbb8e4 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x9b8e4) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #33 0x00007ff6c7dcee08 (C:\helix\work\correlation\build\emsdk\bin\clang.exe+0x32aee08) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #34 0x00007ffc21ee4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : #35 0x00007ffc56bdedcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: error: clang frontend command failed due to signal (use -v to see invocation) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang version 19.1.0 (https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-llvm-project d956f43c6c533ec0b377768f4e6944e853bc865d) [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Target: wasm32-unknown-emscripten [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : Thread model: posix [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : InstalledDir: C:\helix\work\correlation\build\emsdk\bin [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]
C:\helix\work\correlation\build\wasm-shared\WasmApp.Common.targets(818,5): error : clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs. [took 85.11s] [C:\helix\work\workitem\e\publish\ProxyProjectForAOTOnHelix.proj]

                              Known issue validation
                              Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1161305
                              Error message validated:[error : LLVM ERROR: out of memory]
                              Result validation: ✅ Known issue matched with the provided build.
                              Validation performed at: 9/30/2025 5:35:50 AM UTC
                              Report
                              BuildDefinitionTestPull Request
                              1161477dotnet/runtimeWasmTestOnChrome-ST-System.Threading.Timer.Tests.WorkItemExecution
                              1161092dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution#120231
                              1161398dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120097
                              1161305dotnet/runtimeWasmTestOnChrome-ST-System.Runtime.Tests.WorkItemExecution#120242
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                                Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Infrastructure-mono
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