ExtendedLayoutTypes.dll fails to aot compile on mono

[BrzVlad]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1152886&view=logs&j=d25dc2c0-518b-5583-f661-5ac905106679
Build error leg or test failing: Build / linux-x64 Release AllSubsets_Mono_LLVMFULLAOT_RuntimeTests llvmfullaot / AOT compile CoreCLR tests
Pull request: #119881

Error Message

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

{
  "ErrorMessage": "ExtendedLayoutTypes.dll\" exited with code 134",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1152886
Error message validated: [ExtendedLayoutTypes.dll" exited with code 134]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 9/22/2025 10:17:42 AM UTC

Report

Build	Definition	Step Name	Console log	Pull Request
1173097	dotnet/runtime	AOT compile CoreCLR tests	Log
1173023	dotnet/runtime	AOT compile CoreCLR tests	Log
1172449	dotnet/runtime	AOT compile CoreCLR tests	Log
1172415	dotnet/runtime	AOT compile CoreCLR tests	Log
1172107	dotnet/runtime	AOT compile CoreCLR tests	Log
1172071	dotnet/runtime	AOT compile CoreCLR tests	Log
1171713	dotnet/runtime	AOT compile CoreCLR tests	Log
1171704	dotnet/runtime	AOT compile CoreCLR tests	Log
1171424	dotnet/runtime	AOT compile CoreCLR tests	Log
1171378	dotnet/runtime	AOT compile CoreCLR tests	Log
1171049	dotnet/runtime	AOT compile CoreCLR tests	Log
1171026	dotnet/runtime	AOT compile CoreCLR tests	Log
1170667	dotnet/runtime	AOT compile CoreCLR tests	Log
1170613	dotnet/runtime	AOT compile CoreCLR tests	Log
1170109	dotnet/runtime	AOT compile CoreCLR tests	Log
1170020	dotnet/runtime	AOT compile CoreCLR tests	Log
1169618	dotnet/runtime	AOT compile CoreCLR tests	Log
1169560	dotnet/runtime	AOT compile CoreCLR tests	Log
1169105	dotnet/runtime	AOT compile CoreCLR tests	Log
1169078	dotnet/runtime	AOT compile CoreCLR tests	Log
1168753	dotnet/runtime	AOT compile CoreCLR tests	Log
1168689	dotnet/runtime	AOT compile CoreCLR tests	Log
1168232	dotnet/runtime	AOT compile CoreCLR tests	Log
1168200	dotnet/runtime	AOT compile CoreCLR tests	Log
1167858	dotnet/runtime	AOT compile CoreCLR tests	Log
1167782	dotnet/runtime	AOT compile CoreCLR tests	Log
1167605	dotnet/runtime	AOT compile CoreCLR tests	Log	#120462
1167270	dotnet/runtime	AOT compile CoreCLR tests	Log
1167209	dotnet/runtime	AOT compile CoreCLR tests	Log
1166867	dotnet/runtime	AOT compile CoreCLR tests	Log
1166825	dotnet/runtime	AOT compile CoreCLR tests	Log
1166378	dotnet/runtime	AOT compile CoreCLR tests	Log
1166334	dotnet/runtime	AOT compile CoreCLR tests	Log
1166120	dotnet/runtime	AOT compile CoreCLR tests	Log
1166116	dotnet/runtime	AOT compile CoreCLR tests	Log
1165989	dotnet/runtime	AOT compile CoreCLR tests	Log
1165977	dotnet/runtime	AOT compile CoreCLR tests	Log
1165833	dotnet/runtime	AOT compile CoreCLR tests	Log
1165817	dotnet/runtime	AOT compile CoreCLR tests	Log
1165507	dotnet/runtime	AOT compile CoreCLR tests	Log
1165478	dotnet/runtime	AOT compile CoreCLR tests	Log
1165234	dotnet/runtime	AOT compile CoreCLR tests	Log
1165182	dotnet/runtime	AOT compile CoreCLR tests	Log
1164609	dotnet/runtime	AOT compile CoreCLR tests	Log
1164565	dotnet/runtime	AOT compile CoreCLR tests	Log
1164127	dotnet/runtime	AOT compile CoreCLR tests	Log
1164072	dotnet/runtime	AOT compile CoreCLR tests	Log
1163522	dotnet/runtime	AOT compile CoreCLR tests	Log
1163457	dotnet/runtime	AOT compile CoreCLR tests	Log
1163156	dotnet/runtime	AOT compile CoreCLR tests	Log
1163084	dotnet/runtime	AOT compile CoreCLR tests	Log
1162437	dotnet/runtime	AOT compile CoreCLR tests	Log
1162385	dotnet/runtime	AOT compile CoreCLR tests	Log
1162003	dotnet/runtime	AOT compile CoreCLR tests	Log
1161947	dotnet/runtime	AOT compile CoreCLR tests	Log
1161673	dotnet/runtime	AOT compile CoreCLR tests	Log	#120256
1161477	dotnet/runtime	AOT compile CoreCLR tests	Log
1161441	dotnet/runtime	AOT compile CoreCLR tests	Log
1161044	dotnet/runtime	AOT compile CoreCLR tests	Log
1161011	dotnet/runtime	AOT compile CoreCLR tests	Log
1160492	dotnet/runtime	AOT compile CoreCLR tests	Log
1160463	dotnet/runtime	AOT compile CoreCLR tests	Log
1160225	dotnet/runtime	AOT compile CoreCLR tests	Log
1160219	dotnet/runtime	AOT compile CoreCLR tests	Log
1160091	dotnet/runtime	AOT compile CoreCLR tests	Log
1160079	dotnet/runtime	AOT compile CoreCLR tests	Log

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	66

[BrzVlad]

I believe this started happening after #116082, cc @jkoritzinsky