Assert failure: CONTRACT VIOLATION by MethodDesc::GetTemporaryEntryPoint

[JulieLeeMSFT]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1527622
Build error leg or test failing: async/awaitingnotasync/awaitingnotasync/awaitingnotasync.dll

• 99 tests failed in runtime-interpreter

Assert failure(PID 2508 [0x000009cc], Thread: 3048 [0x0be8]): CONTRACT VIOLATION by MethodDesc::GetTemporaryEntryPoint at "D:\a\_work\1\s\src\coreclr\vm\method.cpp":2798

MODE_PREEMPTIVE encountered while thread is in cooperative state.

Error Message

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

{
  "ErrorPattern": "Assert failure.+CONTRACT VIOLATION by MethodDesc::GetTemporaryEntryPoint",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1527622
Error message validated: [Assert failure.+CONTRACT VIOLATION by MethodDesc::GetTemporaryEntryPoint]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 7/27/2026 7:11:48 PM UTC

Report

Build	Repository	Test	Pull Request
1527622	dotnet/runtime	threading_group2.WorkItemExecution

Summary

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

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[JulieLeeMSFT]

cc @jakobbotsch, @VSadov.
cc @BrzVlad because it's failing massively in interpreter pipeline (99 tests).

[JulieLeeMSFT]

cc @AndyAyersMS, maybe related to wasm runtime async work?

[AndyAyersMS]

Wasm async support is still in PR, hasn't merge yet.

[davidwrighton]

This is from my recent change. I'll see if I can fix it soon.