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Test failure: System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain #118977

Description

@SakeTao

Failed in: runtime-coreclr libraries-jitstress 20250821.1

Failed tests:

net10.0-windows-Release-x64-jitstress1_tiered-Windows.10.Amd64.Open
    - System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain

Error message:

System.Threading.Tasks.TaskCanceledException : A task was canceled.

Stack trace:

   at System.Diagnostics.Process.WaitForExitAsync(CancellationToken cancellationToken) in /_/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.cs:line 1553
   at System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain() in /_/src/libraries/System.Diagnostics.Process/tests/ProcessWaitingTests.cs:line 611
--- End of stack trace from previous location ---

Known Issue Error Message

DO NOT USE JSON BELOW IF THIS IS A BUILD BREAK otherwise build analysis will allow pull requests to merge that break the build worse. For a build break, do not use this issue form. Make a regular new issue.

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

{
  "ErrorMessage": ["System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain [FAIL]","A task was canceled."],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎
Result validation: ⚠️ Validation could not be done without an Azure DevOps build URL on the issue. Please add it to the "Build: 🔎" line.
Validation performed at: 10/9/2026 8:25:52 PM UTC

Report

Build Repository Test Pull Request
1631093 dotnet/runtime System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain #135566
1630968 dotnet/runtime System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain #134883
1630824 dotnet/runtime System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain #135422
1630702 dotnet/runtime System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain #135566
1630653 dotnet/runtime System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain #135562
1630399 dotnet/runtime System.Diagnostics.Tests.ProcessWaitingTests.WaitChain #135541
1630402 dotnet/runtime System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain #135443
1630016 dotnet/runtime System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncChain #135517

Summary

24-Hour Hit Count 7-Day Hit Count 1-Month Count
3 8 8

Activity

  1. dotnet-policy-service commented on Aug 22, 2025

    @dotnet-policy-service
    Contributor

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

  2. added this to the Future milestone on Aug 25, 2025
  3. adamsitnik commented on Aug 25, 2025

    @adamsitnik
    Member

    The synchronous version of the same test also failed for the first time in years: #86416 (comment)

    Let's wait and see if it was a one time thing.

  4. added
    Known Build ErrorUse this to report build issues in the .NET Helix tab
    blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'
    and removed
    JitStressCLR JIT issues involving JIT internal stress modes
    Known Build ErrorUse this to report build issues in the .NET Helix tab
    on Oct 9, 2026
  5. jkotas commented on Oct 9, 2026

    @jkotas
    Member

    Failed in #135517 , on x86, without JitStress

  6. dotnet-policy-service commented on Oct 9, 2026

    @dotnet-policy-service
    Contributor

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

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