Test failure: System.Diagnostics.Tests.ProcessTests.ProcessStart_OnLinux_UsesSpecifiedProgramUsingArgumentList

[v-wenyuxu]

Failed in: runtime-coreclr libraries-jitstress 20241106.1

Failed tests:

net10.0-linux-Release-x64-jitstress2_tiered-Ubuntu.2204.Amd64.Open
 - System.Diagnostics.Tests.ProcessTests.ProcessStart_OnLinux_UsesSpecifiedProgramUsingArgumentList

Error message:

 Assert.Equal() Failure: Strings differ
 ↓ (pos 0)
Expected: "sleep"
Actual: ".NET Long Runni"
 ↑ (pos 0)

Stack trace:

 at System.Diagnostics.Tests.ProcessTests.ProcessStart_OnLinux_UsesSpecifiedProgramUsingArgumentList() in /_/src/libraries/System.Diagnostics.Process/tests/ProcessTests.Unix.cs:line 377
 at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
 at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs:line 48

[dotnet-policy-service]

Tagging subscribers to this area: @dotnet/area-system-diagnostics-process
See info in area-owners.md if you want to be subscribed.

[v-wenyuxu]

Failed in: runtime-coreclr libraries-jitstress 20241122.2

Failed tests:

net10.0-linux-Release-x64-jitstress2_tiered-Ubuntu.2204.Amd64.Open
 - System.Diagnostics.Tests.ProcessTests.ProcessStart_OnLinux_UsesSpecifiedProgramUsingArgumentList

Error message:

Assert.Equal() Failure: Strings differ
↓ (pos 0)
Expected: "sleep"
Actual: ".NET Long Runni"
↑ (pos 0)

Stack trace:

 at System.Diagnostics.Tests.ProcessTests.ProcessStart_OnLinux_UsesSpecifiedProgramUsingArgumentList() in /_/src/libraries/System.Diagnostics.Process/tests/ProcessTests.Unix.cs:line 377
 at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
 at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs:line 48

[v-wenyuxu]

Failed in: runtime-coreclr libraries-jitstress 20241125.1

Failed tests:

net10.0-linux-Release-x64-tailcallstress-Ubuntu.2204.Amd64.Open
 - System.Diagnostics.Tests.ProcessTests.ProcessStart_OnLinux_UsesSpecifiedProgramUsingArgumentList

Error message:

 Assert.Equal() Failure: Strings differ
 ↓ (pos 0)
Expected: "sleep"
Actual: ".NET Long Runni"
 ↑ (pos 0)

Stack trace:

 at System.Diagnostics.Tests.ProcessTests.ProcessStart_OnLinux_UsesSpecifiedProgramUsingArgumentList() in /_/src/libraries/System.Diagnostics.Process/tests/ProcessTests.Unix.cs:line 377
 at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
 at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs:line 57

[v-wenyuxu]

Failed in: runtime-coreclr libraries-jitstress-random 20241228.1

Failed tests:

net10.0-linux-Release-x64-jitstress_random_1-Ubuntu.2204.Amd64.Open
 - System.Diagnostics.Tests.ProcessTests.ProcessStart_OnLinux_UsesSpecifiedProgramUsingArgumentList

Error message:

 Assert.Equal() Failure: Strings differ
 ↓ (pos 0)
Expected: "sleep"
Actual: ".NET Long Runni"
 ↑ (pos 0)

Stack trace:

 at System.Diagnostics.Tests.ProcessTests.ProcessStart_OnLinux_UsesSpecifiedProgramUsingArgumentList() in /_/src/libraries/System.Diagnostics.Process/tests/ProcessTests.Unix.cs:line 377
 at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args) in /_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs:line 36
 at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs:line 57

[jeffhandley]

Assigned to @adamsitnik for triage

[adamsitnik]

Triage: it seems that reading a process name on Linux makes some of our tests flaky (#109630, #110643, #111460).

@jkotas has suggested in #111460 (comment) that we maybe reading it too soon. I am going to try to add a simple retry mechanism to see if it helps.