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Assertion failure g_flsIndex != FLS_OUT_OF_INDEXES #114506

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AndyAyersMS opened this issue Apr 10, 2025 · 5 comments
Open

Assertion failure g_flsIndex != FLS_OUT_OF_INDEXES #114506

AndyAyersMS opened this issue Apr 10, 2025 · 5 comments
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area-VM-coreclr blocking-clean-ci Blocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms' Known Build Error Use this to report build issues in the .NET Helix tab untriaged New issue has not been triaged by the area owner

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@AndyAyersMS
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AndyAyersMS commented Apr 10, 2025 •
edited by build-analysis bot
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Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1012520
Build error leg or test failing: tracing/eventpipe/diagnosticport/diagnosticport/diagnosticport.cmd
Pull request: #114464

Error Message

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

{
  "ErrorMessage": "g_flsIndex != FLS_OUT_OF_INDEXES",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1012520
Error message validated: [g_flsIndex != FLS_OUT_OF_INDEXES]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 4/10/2025 10:23:45 PM UTC

Report

Build Definition Test Pull Request
1034110 dotnet/runtime tracing/eventpipe/diagnosticport/diagnosticport/diagnosticport.cmd #115235
1027292 dotnet/runtime tracing/eventpipe/diagnosticport/diagnosticport/diagnosticport.cmd
1021596 dotnet/runtime tracing/eventpipe/diagnosticport/diagnosticport/diagnosticport.cmd #114853
1019634 dotnet/runtime tracing/eventpipe/diagnosticport/diagnosticport/diagnosticport.cmd #110472
1017655 dotnet/runtime tracing/eventpipe/diagnosticport/diagnosticport/diagnosticport.cmd #114585
1012520 dotnet/runtime tracing/eventpipe/diagnosticport/diagnosticport/diagnosticport.cmd #114464

Summary

24-Hour Hit Count 7-Day Hit Count 1-Month Count
0 1 6
@AndyAyersMS AndyAyersMS added blocking-clean-ci Blocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms' Known Build Error Use this to report build issues in the .NET Helix tab labels Apr 10, 2025
@dotnet-issue-labeler dotnet-issue-labeler bot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label Apr 10, 2025
@dotnet-policy-service dotnet-policy-service bot added the untriaged New issue has not been triaged by the area owner label Apr 10, 2025
@AndyAyersMS AndyAyersMS mentioned this issue Apr 10, 2025
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@jkotas
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jkotas commented Apr 10, 2025

g_flsIndex != FLS_OUT_OF_INDEXES

cc @VSadov

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VSadov commented Apr 10, 2025

That is in Detach thread. Perhaps it was never attached, but then it is strange that we are detaching. I'll take a look. Maybe just assert is too restrictive.

@VSadov VSadov self-assigned this Apr 10, 2025
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VSadov commented Apr 10, 2025

Also since it is from ep_rt_thread_coreclr_start_func, so it could be some corner case related to event pipe and thus is why we do not see this often.

@jkotas jkotas added area-VM-coreclr and removed needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners labels Apr 10, 2025
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Tagging subscribers to this area: @mangod9
See info in area-owners.md if you want to be subscribed.

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VSadov commented Apr 18, 2025

got couple more counts, so this is not a one-off case.

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