System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported fails in runtime-nativeaot-outerloop

[jakobbotsch]

Example pipeline run: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1304166&view=results
Example console log: https://helixr1107v0xdcypoyl9e7f.blob.core.windows.net/dotnet-runtime-refs-heads-main-e48f8d90035d45c99c/System.Diagnostics.Process.Tests/1/console.0a1df815.log?helixlogtype=result

[FAIL] System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported
LongPath.dll was not present in bin folder 'C:\helix\work\workitem\e\'
   at System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported() in /_/src/libraries/System.Diagnostics.Process/tests/ProcessModuleTests.Windows.cs:line 26
   at System.Reflection.DynamicInvokeInfo.Invoke(Object, IntPtr, Object[], BinderBundle, Boolean) in /_/src/coreclr/nativeaot/System.Private.CoreLib/src/System/Reflection/DynamicInvokeInfo.cs:line 230

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1304208
Build error leg or test failing: System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported
Pull request: #124683

Error Message

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

{
  "ErrorMessage": "LongPath.dll was not present in bin folder ",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1304166
Error message validated: [LongPath.dll was not present in bin folder ]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 2/22/2026 12:38:33 PM UTC

Report

Build	Definition	Test	Pull Request
1306314	dotnet/runtime	System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported
1305229	dotnet/runtime	System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported
1304767	dotnet/runtime	System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported
1304439	dotnet/runtime	System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported
1304208	dotnet/runtime	System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported	#124683
1304166	dotnet/runtime	System.Diagnostics.Tests.ProcessModuleTests.LongModuleFileNamesAreSupported

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
2	6	6

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