Multiple Helix work items fail on maccatalyst/tvos CoreCLR Release

[kotlarmilos]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1362636
Build error leg or test failing: Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests.WorkItemExecution, Microsoft.Extensions.Hosting.Unit.Tests.WorkItemExecution, System.Diagnostics.TraceSource.Config.Tests.WorkItemExecution, System.Reflection.Emit.ILGeneration.Tests.WorkItemExecution, System.Reflection.Emit.Tests.WorkItemExecution, System.Reflection.Metadata.Tests.WorkItemExecution, System.Security.Cryptography.Tests.WorkItemExecution
Pull request: #125441

Affected CI jobs: build_MacCatalyst_x64_Release_AllSubsets_CoreCLR, build_maccatalyst_arm64_Release_AllSubsets_CoreCLR, build_tvos_arm64_Release_AllSubsets_CoreCLR, build_tvos_arm64_Release_AllSubsets_CoreCLR_RuntimeTests, build_tvos_arm64_Release_AllSubsets_Mono

Error Message

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

{
  "ErrorMessage": "",
  "ErrorPattern": "Work item (Microsoft\\.Extensions\\.DependencyInjection\\.ExternalContainers\\.Tests|Microsoft\\.Extensions\\.Hosting\\.Unit\\.Tests|System\\.Diagnostics\\.TraceSource\\.Config\\.Tests|System\\.Reflection\\.Emit\\.ILGeneration\\.Tests|System\\.Reflection\\.Emit\\.Tests|System\\.Reflection\\.Metadata\\.Tests|System\\.Security\\.Cryptography\\.Tests|baseservices-exceptions|Exceptions|Microsoft\\.Bcl\\.Cryptography\\.Tests|Microsoft\\.Bcl\\.Memory\\.Tests) in job .* has failed",
  "BuildRetry": false,
  "ExcludeConsoleLog": true
}

Summary

Multiple Helix work items fail on maccatalyst CoreCLR Release (both x64 and arm64) and tvos-arm64 CoreCLR/Mono Release, including the tvos-arm64 device queue OSX.15.Amd64.AppleTV.Open. Work items crash without producing individual test results (Build Analysis reports DeadLetter or BadExit).

Affected work items:

• Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests
• Microsoft.Extensions.Hosting.Unit.Tests
• System.Diagnostics.TraceSource.Config.Tests
• System.Reflection.Emit.ILGeneration.Tests
• System.Reflection.Emit.Tests
• System.Reflection.Metadata.Tests
• System.Security.Cryptography.Tests
• baseservices-exceptions (tvos-arm64 CoreCLR_RuntimeTests, DeadLetter, exit -3 Helix DownloadError)
• Exceptions (tvos-arm64 CoreCLR_RuntimeTests, DeadLetter, exit -3 Helix DownloadError)
• Microsoft.Bcl.Cryptography.Tests (tvos-arm64 CoreCLR + Mono, DeadLetter, exit -3 / 21)
• Microsoft.Bcl.Memory.Tests (tvos-arm64 CoreCLR, BadExit, exit 21)

Note: This issue uses timeline ErrorPattern matching because Helix console logs for this build expired. Once a fresh build reproduces this failure, update with specific error text from the Helix console log and set ExcludeConsoleLog to false.

Update (2026-06-17, build 1468533): added baseservices-exceptions, Exceptions, Microsoft.Bcl.Cryptography.Tests, and Microsoft.Bcl.Memory.Tests to the ErrorPattern; these recur on the tvos-arm64 OSX.15.Amd64.AppleTV.Open device queue (same crash family) but were not previously attributed by Build Analysis.

Note

This issue was filed with the assistance of GitHub Copilot.

Known issue validation

Build: 🔎
Result validation: ⚠️ Provided build not found. Provide a valid build in the "Build: 🔎" line.
Validation performed at: 6/18/2026 9:26:51 AM UTC

Report

Build	Repository	Step Name	Console log	Pull Request
1484157	dotnet/runtime	Send to Helix	Log	#129923
1484071	dotnet/runtime	Send to Helix	Log
1484052	dotnet/runtime	Send to Helix	Log	#127980
1483966	dotnet/runtime	Send to Helix	Log
1483955	dotnet/runtime	Send to Helix	Log	#129918
1483740	dotnet/runtime	Send to Helix	Log
1483366	dotnet/runtime	Send to Helix	Log	#129255
1483622	dotnet/runtime	Send tests to Helix (Windows)	Log	#129877
1483621	dotnet/runtime	Send tests to Helix (Windows)	Log	#129877
1483605	dotnet/runtime	Send to Helix	Log	#129877
1482396	dotnet/runtime	Send to Helix	Log
1482372	dotnet/runtime	Send to Helix	Log
1482333	dotnet/runtime	Send tests to Helix (Windows)	Log	#129877
1482287	dotnet/runtime	Send tests to Helix (Windows)	Log	#129877
1481946	dotnet/runtime	Send to Helix	Log
1481374	dotnet/runtime	Send tests to Helix (Unix)	Log	#129851
1481260	dotnet/runtime	Send to Helix	Log	#129688
3007965	dotnet-runtime	Send to Helix	Log	#62402
1480969	dotnet/runtime	Send tests to Helix (Unix)	Log	#129396
3007933	dotnet-runtime	Send to Helix	Log	#62402
1480831	dotnet/runtime	Send to Helix	Log	#129119
1480565	dotnet/runtime	Send to Helix	Log
1480312	dotnet/runtime	Send to Helix	Log
1480576	dotnet/runtime	Send to Helix	Log
1480439	dotnet/runtime	Send to Helix	Log
1480194	dotnet/runtime	Send to Helix	Log	#129702
1479813	dotnet/runtime	Send to Helix	Log
1480185	dotnet/runtime	Send tests to Helix (Unix)	Log	#129396
1479326	dotnet/runtime	Send tests to Helix (Unix)	Log	#129396
1479030	dotnet/runtime	Send to Helix	Log	#129713
1478989	dotnet/runtime	Send tests to Helix (Unix)	Log	#129396
1478795	dotnet/runtime	Send to Helix	Log
1478654	dotnet/runtime	Send to Helix	Log	#129609
1478592	dotnet/runtime	Send to Helix	Log
1478600	dotnet/runtime	Send to Helix	Log
1478299	dotnet/runtime	Send to Helix	Log
1477943	dotnet/runtime	Send to Helix	Log	#128365
1477836	dotnet/runtime	Send to Helix	Log
1477409	dotnet/runtime	Send to Helix	Log	#129396
1477408	dotnet/runtime	Send to Helix	Log	#129299
1477182	dotnet/runtime	Send tests to Helix (Unix)	Log	#129396
1476724	dotnet/runtime	Send tests to Helix (Unix)	Log	#129729
1476573	dotnet/runtime	Send to Helix	Log
1476285	dotnet/runtime	Send tests to Helix (Unix)	Log	#129396
1475466	dotnet/runtime	Send to Helix	Log	#129693
1475488	dotnet/runtime	Send to Helix	Log
1474857	dotnet/runtime	Send to Helix	Log	#125436
1474796	dotnet/runtime	Send to Helix	Log
1474477	dotnet/runtime	Send to Helix	Log
1474451	dotnet/runtime	Send tests to Helix (Unix)	Log	#129396
1474170	dotnet/runtime	Send to Helix	Log
1473974	dotnet/runtime	Send to Helix	Log
1473863	dotnet/runtime	Send to Helix	Log	#128365
1472667	dotnet/runtime	Send to Helix	Log
1472674	dotnet/runtime	Send to Helix	Log	#129377
1472657	dotnet/runtime	Send to Helix	Log
1472532	dotnet/runtime	Send to Helix	Log
1472032	dotnet/runtime	Send to Helix	Log	#129593
1471911	dotnet/runtime	Send to Helix	Log
1471913	dotnet/runtime	Send to Helix	Log	#129403
1471433	dotnet/runtime	Send to Helix	Log	#129299
1471206	dotnet/runtime	Send tests to Helix (Unix)	Log	#129396
1470293	dotnet/runtime	Send tests to Helix (Unix)	Log	#125901
1470136	dotnet/runtime	Send to Helix	Log	#129403
1470048	dotnet/runtime	Send to Helix	Log
1469897	dotnet/runtime	Send to Helix	Log
1469350	dotnet/runtime	Send to Helix	Log
1469034	dotnet/runtime	Send to Helix	Log	#129216
1468533	dotnet/runtime	Send to Helix	Log	#129514
1468448	dotnet/runtime	Send to Helix	Log	#125437
1467678	dotnet/runtime	Send to Helix	Log
1465987	dotnet/runtime	Send to Helix	Log	#129403
1465781	dotnet/runtime	Send to Helix	Log
1465808	dotnet/runtime	Send to Helix	Log
1465450	dotnet/runtime	Send to Helix	Log	#129019
1465282	dotnet/runtime	Send to Helix	Log
1465346	dotnet/runtime	Send to Helix	Log
1465235	dotnet/runtime	Send to Helix	Log	#129398
1465265	dotnet/runtime	Send to Helix	Log	#129394
1465343	dotnet/runtime	Send to Helix	Log
1465308	dotnet/runtime	Send to Helix	Log	#128233
1465255	dotnet/runtime	Send to Helix	Log	#128950
1465242	dotnet/runtime	Send to Helix	Log	#128604
1465227	dotnet/runtime	Send to Helix	Log	#129398
1465285	dotnet/runtime	Send to Helix	Log
1464635	dotnet/runtime	Send to Helix	Log
1464480	dotnet/runtime	Send to Helix	Log
1464321	dotnet/runtime	Send to Helix	Log	#129416
1460065	dotnet/runtime	Send to Helix	Log
1464018	dotnet/runtime	Send to Helix	Log	#129403
1463828	dotnet/runtime	Send to Helix	Log
1463787	dotnet/runtime	Send to Helix	Log	#129395
1463614	dotnet/runtime	Send to Helix	Log	#127582
1463443	dotnet/runtime	Send to Helix	Log	#128409
1463405	dotnet/runtime	Send to Helix	Log	#129380
1463377	dotnet/runtime	Send to Helix	Log	#129373
1463242	dotnet/runtime	Send to Helix	Log
1463147	dotnet/runtime	Send to Helix	Log
1463068	dotnet/runtime	Send to Helix	Log	#129373
1462902	dotnet/runtime	Send to Helix	Log	#129365
Displaying 100 of 262 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
10	52	262

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Tagging subscribers to 'os-tvos': @vitek-karas, @kotlarmilos, @steveisok, @akoeplinger
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Tagging subscribers to 'os-maccatalyst': @vitek-karas, @kotlarmilos, @steveisok, @akoeplinger
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