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[Test] AsnycProfilerV1Tests StateMachineAsync_ResumeDispatchStack Fails #132026
Description
Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1544255
Build error leg or test failing: System.Threading.Tasks.Tests.AsyncProfilerTests.StateMachineAsync_ResumeDispatchStack
Pull request: #131991
Error Message
Expected async boundary frames [V1.MoveNextAsDispatcher] (leaf->root) were not all present in order. Captured boundaries (leaf->root): [].
at System.Threading.Tasks.Tests.AsyncProfilerTests.AssertBoundarySubsequence(List`1 capturedLeafToRoot, String[] expectedLeafToRoot) in /_/src/libraries/System.Runtime/tests/System.Threading.Tasks.Tests/System.Runtime.CompilerServices/AsyncProfilerTests.cs:line 265
at System.Threading.Tasks.Tests.AsyncProfilerTests.StateMachineAsync_ResumeDispatchStack() in /_/src/libraries/System.Runtime/tests/System.Threading.Tasks.Tests/System.Runtime.CompilerServices/AsyncProfilerV1Tests.cs:line 3409
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/RuntimeMethodInfo.cs:line 134
{
"ErrorMessage": "Expected async boundary frames",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1544255
Error message validated: [Expected async boundary frames]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 8/7/2026 7:52:17 PM UTC
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 18 | 71 | 71 |
Activity
dotnet-policy-service commentedon Aug 7, 2026
Tagging subscribers to this area: @dotnet/runtime-infrastructure
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dotnet-policy-service commentedon Aug 7, 2026
Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
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steveisok commentedon Aug 11, 2026
Appears to be a regression from #131963
Preserve the V1 async-profiler stitch boundary (dotnet#132158)