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[wasm] tracing/eventpipe/eventsvalidation tests fail with PlatformNotSupportedException #131898

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Description

@JulieLeeMSFT

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1540634
Build error leg or test failing: tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd

Failing tests:

Failed test: tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
Failed test: tracing/eventpipe/eventsvalidation/GCEvents/GCEvents.cmd
Failed test: tracing/eventpipe/eventsvalidation/GCFinalizers/GCFinalizers.cmd
Failed test: tracing/eventpipe/eventsvalidation/SampleProfilerSampleType/SampleProfilerSampleType.cmd

Error Message

{
  "ErrorMessage": [
    "System.PlatformNotSupportedException: System.Diagnostics.Process is not supported on this platform.",
    "Tracing.Tests.Common.IpcTraceTest.Validate"
  ],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Note

This issue was drafted with GitHub Copilot assistance.

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1540634
Error message validated: [System.PlatformNotSupportedException: System.Diagnostics.Process is not supported on this platform. Tracing.Tests.Common.IpcTraceTest.Validate]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 8/5/2026 7:27:28 PM UTC

Report

Build Repository Test Pull Request
1666620 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1666345 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/GCEvents/GCEvents.cmd
1665156 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/SampleProfilerSampleType/SampleProfilerSampleType.cmd
1664357 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1656650 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1654546 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/GCEvents/GCEvents.cmd
1653245 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1650117 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/GCEvents/GCEvents.cmd
1649816 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1646092 dotnet/runtime OutOfProcessTest.tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1644276 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1644056 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1641472 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1641372 dotnet/runtime tracing/eventpipe/eventsvalidation/SampleProfilerSampleType/SampleProfilerSampleType.cmd
1641163 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1641015 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1640813 dotnet/runtime tracing/eventpipe/eventsvalidation/GCFinalizers/GCFinalizers.cmd
1640678 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1637157 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1632964 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1632675 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd
1632409 dotnet/runtime tracing/eventpipe/eventsvalidation/GCEvents/GCEvents.cmd
1628719 dotnet/runtime tracing/eventpipe/eventsvalidation/SampleProfilerSampleType/SampleProfilerSampleType.cmd
1628465 dotnet/runtime tracing/eventpipe/eventsvalidation/ExceptionThrown_V1/ExceptionThrown_V1.cmd

Summary

24-Hour Hit Count 7-Day Hit Count 1-Month Count
2 5 24

Activity

  1. added
    arch-wasmWebAssembly architecture
    blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'
    os-browserBrowser variant of arch-wasm
    on Aug 5, 2026
  2. dotnet-policy-service commented on Aug 5, 2026

    @dotnet-policy-service
    Contributor

    Tagging subscribers to 'arch-wasm': @lewing, @pavelsavara
    See info in area-owners.md if you want to be subscribed.

  3. added
    Known Build ErrorUse this to report build issues in the .NET Helix tab
    arch-wasmWebAssembly architecture
    blocking-outerloopBlocking the 'runtime-coreclr outerloop' and 'runtime-libraries-coreclr outerloop' runs
    untriagedNew issue has not been triaged by the area owner
    and removed
    arch-wasmWebAssembly architecture
    blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'
    untriagedNew issue has not been triaged by the area owner
    os-browserBrowser variant of arch-wasm
    on Aug 5, 2026
  4. self-assigned this
    on Aug 6, 2026
  5. added this to the Future milestone on Aug 6, 2026
  6. removed
    untriagedNew issue has not been triaged by the area owner
    on Aug 6, 2026
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Known Build ErrorUse this to report build issues in the .NET Helix tabarch-wasmWebAssembly architecturearea-Tracing-coreclrblocking-outerloopBlocking the 'runtime-coreclr outerloop' and 'runtime-libraries-coreclr outerloop' runs

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