[9.0] WASM: Precompiling failed for C:\...\*.dll with exit code -1073741819

[jozkee]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1036224 Build error leg or test failing: Wasm.Build.NativeRebuild.Tests.FlagsChangeRebuildTests.ExtraEmccFlagsSetButNoRealChange Pull request: https://github.com/dotnet/runtime/pull/115385

Error Message

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

{
  "ErrorMessage": "",
  "ErrorPattern": "Precompiling failed for .+? with exit code -1073741819",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Found in https://github.com/dotnet/runtime/pull/115385. Console logs:

1. https://helixr1107v0xd1eu3ibi6ka.blob.core.windows.net/dotnet-runtime-refs-pull-115385-merge-3e6cb41af16e448e99/Workloads-ST-Wasm.Build.NativeRebuild.Tests.FlagsChangeRebuildTests/1/console.cafdcb36.log?helixlogtype=result
2. https://helixr1107v0xd1eu3ibi6ka.blob.core.windows.net/dotnet-runtime-refs-pull-115385-merge-3e6cb41af16e448e99/Workloads-ST-Wasm.Build.NativeRebuild.Tests.NoopNativeRebuildTest/1/console.60192f07.log?helixlogtype=result

Looks similar to https://github.com/dotnet/runtime/issues/115203, maybe just need the fix backported to release/9.0-staging? cc @lewing

Known issue validation

Build: :mag_right: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1036224 Error message validated: [Precompiling failed for *with exit code -1073741819] Result validation: :x: Known issue did not match with the provided build. Validation performed at: 5/8/2025 6:59:44 PM UTC

Report

Build	Definition	Test	Pull Request
1036224	dotnet/runtime	Wasm.Build.Tests.WasmTemplateTests.ConsolePublishAndRun	dotnet/runtime#115385

Summary

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

Report

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	0

[dotnet-policy-service[bot]]

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

[lewing]

It is an llvm crash, will investigate

[pavelsavara]

Still on it @lewing ? Do you want to backport the fixes from main ?

https://github.com/dotnet/runtime/pull/115204

[lewing]

Still on it @lewing ? Do you want to backport the fixes from main ?

#115204

In my backlog, The failures here are probably not the failures there.

[jeffschwMSFT]

removing blocking-clean-ci as it has not failed in 30 days

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	0