Wasmtime GitHub notifications bot (May 14 2026 at 20:26): Wasmtime GitHub notifications bot (May 14 2026 at 20:26):fitzgen opened PR #13374 from fitzgen:instance-leak-on-oom to bytecodealliance:main:
Two things:
Reserve capacity in the instances map before allocating the instance to prevent OOM during push from leaking the instance.
Move
guard.run_deallocate = falseafterInstance::newsucceeds so that a failure inInstance::newproperly decrements the live instance count.<!--
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Wasmtime GitHub notifications bot (May 14 2026 at 20:26):fitzgen requested pchickey for a review on PR #13374.
Wasmtime GitHub notifications bot (May 14 2026 at 20:26):fitzgen requested wasmtime-core-reviewers for a review on PR #13374.
Wasmtime GitHub notifications bot (May 14 2026 at 22:04):github-actions[bot] added the label wasmtime:api on PR #13374.
Wasmtime GitHub notifications bot (May 15 2026 at 02:00)::thumbs_up: alexcrichton submitted PR review.
Wasmtime GitHub notifications bot (May 15 2026 at 02:00):alexcrichton added PR #13374 Fix pooling allocator instance count leak on OOM during instantiation to the merge queue.
Wasmtime GitHub notifications bot (May 15 2026 at 02:24)::check: alexcrichton merged PR #13374.
Wasmtime GitHub notifications bot (May 15 2026 at 02:24):alexcrichton removed PR #13374 Fix pooling allocator instance count leak on OOM during instantiation from the merge queue.
Last updated: Jun 01 2026 at 09:49 UTC