[ci-scan] Known Build Error: AsyncProfilerTests.RuntimeAsync_CallstackSimulation fails in runtime-nativeaot-outerloop on osx-arm

[github-actions]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1408078
Build error leg or test failing: osx arm64 checked-System.Threading.Tasks.Tests

Error Message

{
  "ErrorMessage": "WrapperTestC did not find Continuation_Wrapper_N on stack (slot=-1)",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

AsyncProfilerTests.RuntimeAsync_CallstackSimulation_HandledException and related tests fail under NativeAOT on osx-arm64. The test process exits with code 134 (SIGABRT). Occurring in every scanned build of pipeline runtime-nativeaot-outerloop (def 265) — confirmed in builds 1408078 and 1407254.

Affected pipelines:

• runtime-nativeaot-outerloop (def 265): osx-arm64 checked — System.Threading.Tasks.Tests — exit 134 (SIGABRT) — Helix job 23a26d8e-348e-4ec2-9ee3-f04fa503ef67

Error excerpt:

[FAIL] System.Threading.Tasks.Tests.AsyncProfilerTests.RuntimeAsync_CallstackSimulation_HandledException
     Error: WrapperTestC did not find Continuation_Wrapper_N on stack (slot=-1)
     Error: WrapperTestB did not find Continuation_Wrapper_N on stack (slot=-1)
     Error: WrapperTestA did not find Continuation_Wrapper_N on stack (slot=-1)
[FAIL] System.Threading.Tasks.Tests.AsyncProfilerTests.RuntimeAsync_UnhandledExceptionUnwind
[FAIL] System.Threading.Tasks.Tests.AsyncProfilerTests.RuntimeAsync_CallstackSimulation_UnhandledException
Unhandled exception. Xunit.Sdk.TrueException: Expected first flush of core lifecycle events within timeout
exit code 134 means SIGABRT Abort.

Console log: https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-runtime-refs-heads-main-23a26d8e348e4ec29e/System.Threading.Tasks.Tests/1/console.3d7cc047.log?helixlogtype=result

First seen in scanned window: build 1407254 (May 4, 2026). Both scanned failing builds are affected. This is computed within the scanned window and may not be the true origin.

Note

🔒 Integrity filter blocked 6 items

The following items were blocked because they don't meet the GitHub integrity level.

• #92420 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• #123982 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• #111752 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• #125600 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• #124206 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• #126448 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".

To allow these resources, lower min-integrity in your GitHub frontmatter:

tools:
  github:
    min-integrity: approved  # merged | approved | unapproved | none

Generated by CI Outer-Loop Failure Scanner · ● 16.2M · ◷

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1408078
Error message validated: [WrapperTestC did not find Continuation_Wrapper_N on stack (slot=-1)]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 5/6/2026 11:37:03 AM UTC

Report

Build	Definition	Test	Pull Request
1408078	dotnet/runtime	System.Threading.Tasks.Tests.WorkItemExecution

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	1	1

[dotnet-policy-service]

Tagging subscribers to this area: @agocke, @dotnet/ilc-contrib
See info in area-owners.md if you want to be subscribed.

[lateralusX]

These tests have been disabled on NativeAOT. #127762 will fix so they can be re-enabled. I suspect the failing run happened before the tests got disabled, so this is probably a stale issue.