[MONO] * Assertion: should not be reached at /__w/1/s/src/mono/mono/sgen/sgen-scan-object.h

[jkotas]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1110655
Build error leg or test failing: WasmTestOnChrome-ST-System.Reflection.Emit.Tests.WorkItemExecution
Pull request: #118228

Error Message

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

{
  "ErrorMessage": "[MONO] * Assertion: should not be reached at /__w/1/s/src/mono/mono/sgen/sgen-scan-object.h",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1110655
Error message validated: [[MONO] * Assertion: should not be reached at /__w/1/s/src/mono/mono/sgen/sgen-scan-object.h]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 8/1/2025 12:09:16 AM UTC

Report

Build	Definition	Test	Pull Request
1110655	dotnet/runtime	WasmTestOnChrome-ST-System.Reflection.Emit.Tests.WorkItemExecution	#118228

Summary

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

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[MihuBot]

Possible related and/or duplicate issues:

• [wasm] Assertion: should not be reached at D:/a/_work/1/s/src/mono/mono/sgen/sgen-scan-object.h:93 in System.Reflection.Tests #95805
• [browser][MT] System.Reflection.Tests - Assertion: sgen-scan-object.h:93  #100932
• [browser] GC - Assertion: should not be reached - simple_nursery_serial_scan_object #97543
• [wasm] System.Collections.Tests assert in sgen-scan-object.h:93 #86860

[BrzVlad]

This is same issue as #118244. It is likely caused by #118099. We might have to revert. cc @pavelsavara