Wasmtime GitHub notifications bot (Nov 06 2025 at 16:20): Wasmtime GitHub notifications bot (Nov 06 2025 at 16:20):alexcrichton requested fitzgen for a review on PR #11990.
Wasmtime GitHub notifications bot (Nov 06 2025 at 16:20):alexcrichton opened PR #11990 from alexcrichton:disable-mach-ports-during-fuzzing to bytecodealliance:main:
Reported [here] and confirmed locally for myself it appears that sometimes exceptions bypass our mach port thread and go to signal handlers instead. I've got no idea why myself and it seems non-deterministic. Instead of trying to bottom this out I've gone ahead and just disabled mach ports during fuzzing. Mach ports are mainly there to play nice with Breakpad and such which isn't a concern during fuzzing, so using signals should work just as well.
[here]: https://github.com/bytecodealliance/wasmtime/issues/11850#issuecomment-3493237271
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Wasmtime GitHub notifications bot (Nov 06 2025 at 16:20):alexcrichton requested wasmtime-fuzz-reviewers for a review on PR #11990.
Wasmtime GitHub notifications bot (Nov 06 2025 at 17:46):github-actions[bot] commented on PR #11990:
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Wasmtime GitHub notifications bot (Nov 06 2025 at 21:26):saulecabrera submitted PR review.
Wasmtime GitHub notifications bot (Nov 06 2025 at 21:53):alexcrichton merged PR #11990.
Last updated: Dec 06 2025 at 07:03 UTC