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CancelPendingFlushDuringBackpressureThrows test fails on arm32  #102378

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Description

@EgorBo
  Starting:    System.Text.Json.Tests (parallel test collections = on [2 threads], stop on fail = off)
    System.Text.Json.Serialization.Tests.PipeTests.CancelPendingFlushDuringBackpressureThrows [FAIL]
      Assert.Equal() Failure: Values differ
      Expected: 11
      Actual:   13
      Stack Trace:
           at System.Text.Json.Serialization.Tests.PipeTests.CancelPendingFlushDuringBackpressureThrows()
        --- End of stack trace from previous location ---

Example: https://dev.azure.com/dnceng-public/public/_build/results?buildId=678396&view=ms.vss-test-web.build-test-results-tab

Build Information

Build:
Build error leg or test failing:

Error Message

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

{
  "ErrorMessage": "CancelPendingFlushDuringBackpressureThrows [FAIL]",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=678396
Error message validated: [CancelPendingFlushDuringBackpressureThrows [FAIL]]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 5/17/2024 2:38:23 PM UTC

Report

Build Definition Test Pull Request
681018 dotnet/runtime System.Text.Json.Serialization.Tests.PipeTests.CancelPendingFlushDuringBackpressureThrows #102188
678396 dotnet/runtime System.Text.Json.Serialization.Tests.PipeTests.CancelPendingFlushDuringBackpressureThrows

Summary

24-Hour Hit Count 7-Day Hit Count 1-Month Count
1 2 2

Activity

  1. ghost added
    needs-area-labelAn area label is needed to ensure this gets routed to the appropriate area owners
    on May 17, 2024
  2. EgorBo commented on May 17, 2024

    @EgorBo
    MemberAuthor

    Looks like this test was introduced recently in #101461

    cc @BrennanConroy
    if that helps, in this outerloop pipeline JIT (and everything else) is quite slow so if a test relies on some timings it might fail

  3. added and removed
    needs-area-labelAn area label is needed to ensure this gets routed to the appropriate area owners
    on May 17, 2024
  4. dotnet-policy-service commented on May 17, 2024

    @dotnet-policy-service
    Contributor

    Tagging subscribers to this area: @dotnet/area-system-text-json, @gregsdennis
    See info in area-owners.md if you want to be subscribed.

  5. v-wenyuxu commented on May 20, 2024

    @v-wenyuxu

    Failed in: runtime-coreclr libraries-jitstress2-jitstressregs 20240518.1

    Failed tests:

    net9.0-linux-Release-arm-jitstress2_jitstressregs0x80-(Ubuntu.1804.Arm32.Open)Ubuntu.2004.Armarch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-18.04-helix-arm32v7
        - System.Text.Json.Serialization.Tests.PipeTests.CancelPendingFlushDuringBackpressureThrows
    

    Error message:

     Assert.Equal() Failure: Values differ
    Expected: 11
    Actual:   13
    

    Stack trace:

       at System.Text.Json.Serialization.Tests.PipeTests.CancelPendingFlushDuringBackpressureThrows()
    --- End of stack trace from previous location ---
    
  6. locked and limited conversation to collaborators on Jun 21, 2024
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