Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3) #129541

Closed
Closed
Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3)#129541
Assignees
dhartglassMSFT
Labels
arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
Milestone
11.0.0

Description

@JulieLeeMSFT
JulieLeeMSFT
opened on Jun 17, 2026

Summary:
baseservices/callconvs/TestCallingConventions crashes with a native access violation (0xC0000005) in NativeLibrary.g____PInvoke during Program.BlittableFunctionPointers(), under gcstress0x3.

Build Information:

Error Message:

Fatal error.
0xC0000005
at System.Runtime.InteropServices.NativeLibrary.<LoadByName>g____PInvoke|1_0(UInt16*, System.Runtime.CompilerServices.QCallAssembly, Int32, UInt32, Int32)
at Program.BlittableFunctionPointers()

Affected test legs:

runtime-coreclr gcstress0x3-gcstress0xc
- coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
- coreclr windows x64 Checked gcstress0xc @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd

Console log:Console Log

Source:runtime-coreclr gcstress0x3-gcstress0xc / coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open / baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd

Analysis:
A native access violation (0xC0000005) occurs in the NativeLibrary. P/Invoke stub while running the blittable function-pointer calling-convention test under GC stress (gcstress0x3). The process faults in NativeLibrary.g____PInvoke|1_0 during Program.BlittableFunctionPointers().

Milestone: 11.0.0

Note

This issue was generated with assistance from GitHub Copilot (AI).

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    , 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
     blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

    Skip to content
    Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3) #129541
    Closed
    Closed
    Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3)#129541
    Assignees
    dhartglassMSFT
    Labels
    arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
    Milestone
    11.0.0
    Description
    @JulieLeeMSFT
    JulieLeeMSFT
    opened on Jun 17, 2026
    Summary:
    
baseservices/callconvs/TestCallingConventions crashes with a native access violation (0xC0000005) in NativeLibrary.g____PInvoke during Program.BlittableFunctionPointers(), under gcstress0x3.
    Build Information:
    Error Message:
    Fatal error.
0xC0000005
at System.Runtime.InteropServices.NativeLibrary.<LoadByName>g____PInvoke|1_0(UInt16*, System.Runtime.CompilerServices.QCallAssembly, Int32, UInt32, Int32)
at Program.BlittableFunctionPointers()

    Affected test legs:
    runtime-coreclr gcstress0x3-gcstress0xc
- coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
- coreclr windows x64 Checked gcstress0xc @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd

    Console log:Console Log
    Source:runtime-coreclr gcstress0x3-gcstress0xc / coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open / baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
    Analysis:
    
A native access violation (0xC0000005) occurs in the NativeLibrary. P/Invoke stub while running the blittable function-pointer calling-convention test under GC stress (gcstress0x3). The process faults in NativeLibrary.g____PInvoke|1_0 during Program.BlittableFunctionPointers().
    Milestone: 11.0.0
    Note
    This issue was generated with assistance from GitHub Copilot (AI).
    Metadata
    Metadata
    Assignees
    Labels
    arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
    Type
    No type
    Projects
    No projects
      Milestone
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      None yet
      Development
      No branches or pull requests
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

      Skip to content
      Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3) #129541
      Closed
      Closed
      Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3)#129541
      Assignees
      dhartglassMSFT
      Labels
      arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
      Milestone
      11.0.0
      Description
      @JulieLeeMSFT
      JulieLeeMSFT
      opened on Jun 17, 2026
      Summary:
      
baseservices/callconvs/TestCallingConventions crashes with a native access violation (0xC0000005) in NativeLibrary.g____PInvoke during Program.BlittableFunctionPointers(), under gcstress0x3.
      Build Information:
      Error Message:
      Fatal error.
0xC0000005
at System.Runtime.InteropServices.NativeLibrary.<LoadByName>g____PInvoke|1_0(UInt16*, System.Runtime.CompilerServices.QCallAssembly, Int32, UInt32, Int32)
at Program.BlittableFunctionPointers()

      Affected test legs:
      runtime-coreclr gcstress0x3-gcstress0xc
- coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
- coreclr windows x64 Checked gcstress0xc @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd

      Console log:Console Log
      Source:runtime-coreclr gcstress0x3-gcstress0xc / coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open / baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
      Analysis:
      
A native access violation (0xC0000005) occurs in the NativeLibrary. P/Invoke stub while running the blittable function-pointer calling-convention test under GC stress (gcstress0x3). The process faults in NativeLibrary.g____PInvoke|1_0 during Program.BlittableFunctionPointers().
      Milestone: 11.0.0
      Note
      This issue was generated with assistance from GitHub Copilot (AI).
      Metadata
      Metadata
      Assignees
      Labels
      arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
      Type
      No type
      Projects
      No projects
        Milestone
        Relationships
        None yet
        Development
        No branches or pull requests
        Issue actions
        
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

        Skip to content
        Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3) #129541
        Closed
        Closed
        Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3)#129541
        Assignees
        dhartglassMSFT
        Labels
        arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
        Milestone
        11.0.0
        Description
        @JulieLeeMSFT
        JulieLeeMSFT
        opened on Jun 17, 2026
        Summary:
        
baseservices/callconvs/TestCallingConventions crashes with a native access violation (0xC0000005) in NativeLibrary.g____PInvoke during Program.BlittableFunctionPointers(), under gcstress0x3.
        Build Information:
        Error Message:
        Fatal error.
0xC0000005
at System.Runtime.InteropServices.NativeLibrary.<LoadByName>g____PInvoke|1_0(UInt16*, System.Runtime.CompilerServices.QCallAssembly, Int32, UInt32, Int32)
at Program.BlittableFunctionPointers()

        Affected test legs:
        runtime-coreclr gcstress0x3-gcstress0xc
- coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
- coreclr windows x64 Checked gcstress0xc @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd

        Console log:Console Log
        Source:runtime-coreclr gcstress0x3-gcstress0xc / coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open / baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
        Analysis:
        
A native access violation (0xC0000005) occurs in the NativeLibrary. P/Invoke stub while running the blittable function-pointer calling-convention test under GC stress (gcstress0x3). The process faults in NativeLibrary.g____PInvoke|1_0 during Program.BlittableFunctionPointers().
        Milestone: 11.0.0
        Note
        This issue was generated with assistance from GitHub Copilot (AI).
        Metadata
        Metadata
        Assignees
        Labels
        arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
        Type
        No type
        Projects
        No projects
          Milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, '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
          Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3) #129541
          Closed
          Closed
          Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3)#129541
          Assignees
          dhartglassMSFT
          Labels
          arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
          Milestone
          11.0.0
          Description
          @JulieLeeMSFT
          JulieLeeMSFT
          opened on Jun 17, 2026
          Summary:
          
baseservices/callconvs/TestCallingConventions crashes with a native access violation (0xC0000005) in NativeLibrary.g____PInvoke during Program.BlittableFunctionPointers(), under gcstress0x3.
          Build Information:
          Error Message:
          Fatal error.
0xC0000005
at System.Runtime.InteropServices.NativeLibrary.<LoadByName>g____PInvoke|1_0(UInt16*, System.Runtime.CompilerServices.QCallAssembly, Int32, UInt32, Int32)
at Program.BlittableFunctionPointers()

          Affected test legs:
          runtime-coreclr gcstress0x3-gcstress0xc
- coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
- coreclr windows x64 Checked gcstress0xc @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd

          Console log:Console Log
          Source:runtime-coreclr gcstress0x3-gcstress0xc / coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open / baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
          Analysis:
          
A native access violation (0xC0000005) occurs in the NativeLibrary. P/Invoke stub while running the blittable function-pointer calling-convention test under GC stress (gcstress0x3). The process faults in NativeLibrary.g____PInvoke|1_0 during Program.BlittableFunctionPointers().
          Milestone: 11.0.0
          Note
          This issue was generated with assistance from GitHub Copilot (AI).
          Metadata
          Metadata
          Assignees
          Labels
          arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
          Type
          No type
          Projects
          No projects
            Milestone
            Relationships
            None yet
            Development
            No branches or pull requests
            Issue actions
            
, '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
            Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3) #129541
            Closed
            Closed
            Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3)#129541
            Assignees
            dhartglassMSFT
            Labels
            arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
            Milestone
            11.0.0
            Description
            @JulieLeeMSFT
            JulieLeeMSFT
            opened on Jun 17, 2026
            Summary:
            
baseservices/callconvs/TestCallingConventions crashes with a native access violation (0xC0000005) in NativeLibrary.g____PInvoke during Program.BlittableFunctionPointers(), under gcstress0x3.
            Build Information:
            Error Message:
            Fatal error.
0xC0000005
at System.Runtime.InteropServices.NativeLibrary.<LoadByName>g____PInvoke|1_0(UInt16*, System.Runtime.CompilerServices.QCallAssembly, Int32, UInt32, Int32)
at Program.BlittableFunctionPointers()

            Affected test legs:
            runtime-coreclr gcstress0x3-gcstress0xc
- coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
- coreclr windows x64 Checked gcstress0xc @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd

            Console log:Console Log
            Source:runtime-coreclr gcstress0x3-gcstress0xc / coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open / baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
            Analysis:
            
A native access violation (0xC0000005) occurs in the NativeLibrary. P/Invoke stub while running the blittable function-pointer calling-convention test under GC stress (gcstress0x3). The process faults in NativeLibrary.g____PInvoke|1_0 during Program.BlittableFunctionPointers().
            Milestone: 11.0.0
            Note
            This issue was generated with assistance from GitHub Copilot (AI).
            Metadata
            Metadata
            Assignees
            Labels
            arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
            Type
            No type
            Projects
            No projects
              Milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3) #129541
              Closed
              Closed
              Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3)#129541
              Assignees
              dhartglassMSFT
              Labels
              arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
              Milestone
              11.0.0
              Description
              @JulieLeeMSFT
              JulieLeeMSFT
              opened on Jun 17, 2026
              Summary:
              
baseservices/callconvs/TestCallingConventions crashes with a native access violation (0xC0000005) in NativeLibrary.g____PInvoke during Program.BlittableFunctionPointers(), under gcstress0x3.
              Build Information:
              Error Message:
              Fatal error.
0xC0000005
at System.Runtime.InteropServices.NativeLibrary.<LoadByName>g____PInvoke|1_0(UInt16*, System.Runtime.CompilerServices.QCallAssembly, Int32, UInt32, Int32)
at Program.BlittableFunctionPointers()

              Affected test legs:
              runtime-coreclr gcstress0x3-gcstress0xc
- coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
- coreclr windows x64 Checked gcstress0xc @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd

              Console log:Console Log
              Source:runtime-coreclr gcstress0x3-gcstress0xc / coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open / baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
              Analysis:
              
A native access violation (0xC0000005) occurs in the NativeLibrary. P/Invoke stub while running the blittable function-pointer calling-convention test under GC stress (gcstress0x3). The process faults in NativeLibrary.g____PInvoke|1_0 during Program.BlittableFunctionPointers().
              Milestone: 11.0.0
              Note
              This issue was generated with assistance from GitHub Copilot (AI).
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              arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
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); }
})();
})();

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                Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3) #129541
                Closed
                Closed
                Test failure: baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd (AV in NativeLibrary.LoadByName under gcstress0x3)#129541
                Assignees
                dhartglassMSFT
                Labels
                arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
                Milestone
                11.0.0
                Description
                @JulieLeeMSFT
                JulieLeeMSFT
                opened on Jun 17, 2026
                Summary:
                
baseservices/callconvs/TestCallingConventions crashes with a native access violation (0xC0000005) in NativeLibrary.g____PInvoke during Program.BlittableFunctionPointers(), under gcstress0x3.
                Build Information:
                Error Message:
                Fatal error.
0xC0000005
at System.Runtime.InteropServices.NativeLibrary.<LoadByName>g____PInvoke|1_0(UInt16*, System.Runtime.CompilerServices.QCallAssembly, Int32, UInt32, Int32)
at Program.BlittableFunctionPointers()

                Affected test legs:
                runtime-coreclr gcstress0x3-gcstress0xc
- coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
- coreclr windows x64 Checked gcstress0xc @ Windows.10.Amd64.Open
- baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd

                Console log:Console Log
                Source:runtime-coreclr gcstress0x3-gcstress0xc / coreclr windows x64 Checked gcstress0x3 @ Windows.10.Amd64.Open / baseservices/callconvs/TestCallingConventions/TestCallingConventions.cmd
                Analysis:
                
A native access violation (0xC0000005) occurs in the NativeLibrary. P/Invoke stub while running the blittable function-pointer calling-convention test under GC stress (gcstress0x3). The process faults in NativeLibrary.g____PInvoke|1_0 during Program.BlittableFunctionPointers().
                Milestone: 11.0.0
                Note
                This issue was generated with assistance from GitHub Copilot (AI).
                Metadata
                Metadata
                Assignees
                Labels
                arch-x64area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIblocking-clean-ci-optionalBlocking optional rolling runsos-windows
                Type
                No type
                Projects
                No projects
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