ProcessThreadTests.TestStartTimeProperty failure in CI

[jkotas]

    System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty [FAIL]
      Assert.Single() Failure: The collection did not contain any matching items
      Expected:   (predicate expression)
      Collection: [System.Diagnostics.ProcessThread, System.Diagnostics.ProcessThread, System.Diagnostics.ProcessThread, System.Diagnostics.ProcessThread, System.Diagnostics.ProcessThread, ···]
      Stack Trace:
        /_/src/libraries/System.Diagnostics.Process/tests/ProcessThreadTests.cs(156,0): at System.Diagnostics.Tests.ProcessThreadTests.<>c__DisplayClass4_2.<TestStartTimeProperty>b__0()
        /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs(2396,0): at System.Threading.Tasks.Task.InnerInvoke()
        /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs(2384,0): at System.Threading.Tasks.Task.<>c.<.cctor>b__292_0(Object obj)
        /_/src/libraries/System.Private.CoreLib/src/System/Threading/ExecutionContext.cs(179,0): at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
        --- End of stack trace from previous location ---
        /_/src/libraries/System.Private.CoreLib/src/System/Threading/ExecutionContext.cs(203,0): at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
        /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs(2342,0): at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
        --- End of stack trace from previous location ---
        /_/src/libraries/System.Diagnostics.Process/tests/ProcessThreadTests.cs(149,0): at System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty()
        --- End of stack trace from previous location ---

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=755830
Build error leg or test failing: System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty
Pull request: #105519

Error Message

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

{
  "ErrorMessage": ["System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty [FAIL]","The collection did not contain any matching items"],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=755830
Error message validated: [System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty [FAIL] The collection did not contain any matching items]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 7/26/2024 12:06:54 AM UTC

Report

Build	Definition	Test	Pull Request
1026152	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#115009
1026126	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#115018
1025284	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114083
1024489	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#113948
1023646	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114881
1021239	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty
1020848	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114754
1019858	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114688
1019823	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114756
1018741	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114754
1018342	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114741
1018233	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114687
1017008	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114644
1016978	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114682
1015364	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114619
1013846	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#113907
1013697	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty
1011954	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114481
1011093	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114392
1009886	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114352
1009085	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#111791
1006946	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty
1005430	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114145
1005183	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114148
1004125	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114210
1002962	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#113595
1002378	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114080
1002124	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114100
1001410	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#113313
999915	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114080
999726	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#113876
999002	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#113976
998425	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#100729
997957	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#113954
997808	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#114028
994975	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty
994406	dotnet/runtime	System.Diagnostics.Tests.ProcessThreadTests.TestStartTimeProperty	#107369

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
3	7	37

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Tagging subscribers to this area: @dotnet/area-system-diagnostics-process
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[jozkee]

#104972 was an attempt to fix it but looks like ProcessInfo.Threads is not being Refresh()'d properly.

[adamsitnik]

I wonder why it fails only on Mono?