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
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
1462897	dotnet/runtime	Send to Helix	Log	#129369
1462854	dotnet/runtime	Send to Helix	Log	#129348
1462837	dotnet/runtime	Send to Helix	Log	#129354
1462782	dotnet/runtime	Send to Helix	Log	#129322
1462759	dotnet/runtime	Send to Helix	Log	#129197
1462675	dotnet/runtime	Send to Helix	Log	#129362
1462516	dotnet/runtime	Send to Helix	Log	#129345
1462635	dotnet/runtime	Send to Helix	Log	#129285
1462616	dotnet/runtime	Send to Helix	Log
1461798	dotnet/runtime	Send to Helix	Log	#78746
1462622	dotnet/runtime	Send to Helix	Log	#129321
1462617	dotnet/runtime	Send to Helix	Log	#129354
1462578	dotnet/runtime	Send to Helix	Log	#129361
1462542	dotnet/runtime	Send to Helix	Log	#129360
1462523	dotnet/runtime	Send to Helix	Log	#129224
1462502	dotnet/runtime	Send to Helix	Log	#129312
1462460	dotnet/runtime	Send to Helix	Log	#129134
1462475	dotnet/runtime	Send to Helix	Log	#129356
1462433	dotnet/runtime	Send to Helix	Log	#129201
1462383	dotnet/runtime	Send to Helix	Log	#129352
1462367	dotnet/runtime	Send to Helix	Log	#129351
1462318	dotnet/runtime	Send to Helix	Log	#128869
1462287	dotnet/runtime	Send to Helix	Log	#128384
1462293	dotnet/runtime	Send to Helix	Log	#129299
1462230	dotnet/runtime	Send to Helix	Log	#129349
1462206	dotnet/runtime	Send to Helix	Log
1462037	dotnet/runtime	Send to Helix	Log	#129201
1462189	dotnet/runtime	Send to Helix	Log	#129059
1462166	dotnet/runtime	Send to Helix	Log	#129348
1462156	dotnet/runtime	Send to Helix	Log	#128652
1462162	dotnet/runtime	Send to Helix	Log	#129343
1462055	dotnet/runtime	Send to Helix	Log	#129322
1461986	dotnet/runtime	Send to Helix	Log	#129260
1461947	dotnet/runtime	Send to Helix	Log	#129091
1461976	dotnet/runtime	Send to Helix	Log	#129261
1461958	dotnet/runtime	Send to Helix	Log	#129145
1461828	dotnet/runtime	Send to Helix	Log	#129304
2999072	dotnet-runtime	Send to Helix	Log
1461779	dotnet/runtime	Send to Helix	Log	#125436
1461786	dotnet/runtime	Send to Helix	Log	#129134
1461575	dotnet/runtime	Send to Helix	Log
1461572	dotnet/runtime	Send to Helix	Log
1461360	dotnet/runtime	Send to Helix	Log	#129315
1461332	dotnet/runtime	Send to Helix	Log	#129321
1460894	dotnet/runtime	Send to Helix	Log	#129319
1461350	dotnet/runtime	Send to Helix	Log	#129299
1461046	dotnet/runtime	Send to Helix	Log	#129305
1461002	dotnet/runtime	Send to Helix	Log
1460975	dotnet/runtime	Send to Helix	Log	#129293
1460856	dotnet/runtime	Send to Helix	Log	#129316
1460883	dotnet/runtime	Send to Helix	Log	#126845
1460861	dotnet/runtime	Send to Helix	Log	#129233
1460819	dotnet/runtime	Send to Helix	Log	#78746
1460723	dotnet/runtime	Send to Helix	Log
1460733	dotnet/runtime	Send to Helix	Log	#129201
1460701	dotnet/runtime	Send to Helix	Log	#129034
1460644	dotnet/runtime	Send to Helix	Log	#129312
1460625	dotnet/runtime	Send to Helix	Log	#129140
1460598	dotnet/runtime	Send to Helix	Log	#129091
1460589	dotnet/runtime	Send to Helix	Log	#128658
1459629	dotnet/runtime	Send to Helix	Log
1459621	dotnet/runtime	Send to Helix	Log	#129226
1459328	dotnet/runtime	Send to Helix	Log	#125437
2997882	dotnet-runtime	Send to Helix	Log	#59556
Displaying 100 of 268 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
6	101	268

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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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