Stream: git-wasmtime

Topic: wasmtime / PR #12855 Handle OOM in `{Func,Memory,Table,Gl...

Wasmtime GitHub notifications bot (Mar 27 2026 at 09:27):

fitzgen opened PR #12855 from fitzgen:handle-oom-when-calling-funcs-and-creating-memories-tables-globals to bytecodealliance:main:

• Use try_new for Box<dyn RuntimeLinearMemory> in DefaultMemoryCreator
• Use TryPrimaryMap for host_globals in Store

• Add Func::try_wrap and use try_new for Box<HostFunc>

  Add Func::try_wrap as a fallible version of Func::wrap that returns an error
  on out-of-memory instead of panicking. Func::wrap now delegates to try_wrap.

  Also use try_new::<Box<_>> instead of Box::new for HostFunc.

• Use bumpalo's try_alloc for FuncRefs

• Use try_new for Arc<Module> in "trampoline" code
• Test that we handle OOM in {Func,Memory,Table,Global}::new and when calling an instance's exported function

Wasmtime GitHub notifications bot (Mar 27 2026 at 09:27):

fitzgen requested wasmtime-fuzz-reviewers for a review on PR #12855.

Wasmtime GitHub notifications bot (Mar 27 2026 at 09:27):

fitzgen requested cfallin for a review on PR #12855.

Wasmtime GitHub notifications bot (Mar 27 2026 at 09:27):

fitzgen requested wasmtime-core-reviewers for a review on PR #12855.

Wasmtime GitHub notifications bot (Mar 27 2026 at 09:28):

fitzgen updated PR #12855.

Wasmtime GitHub notifications bot (Mar 27 2026 at 13:03):

github-actions[bot] added the label fuzzing on PR #12855.

Wasmtime GitHub notifications bot (Mar 27 2026 at 13:03):

github-actions[bot] added the label wasmtime:api on PR #12855.

Wasmtime GitHub notifications bot (Mar 27 2026 at 13:04):

github-actions[bot] commented on PR #12855:

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Wasmtime GitHub notifications bot (Mar 27 2026 at 16:54):

cfallin submitted PR review:

Nice!

Wasmtime GitHub notifications bot (Mar 27 2026 at 16:54):

cfallin added PR #12855 Handle OOM in {Func,Memory,Table,Global}::new and when calling an instance's exported function to the merge queue.

Wasmtime GitHub notifications bot (Mar 27 2026 at 17:18):

cfallin merged PR #12855.

Wasmtime GitHub notifications bot (Mar 27 2026 at 17:18):

cfallin removed PR #12855 Handle OOM in {Func,Memory,Table,Global}::new and when calling an instance's exported function from the merge queue.

Last updated: Apr 12 2026 at 23:10 UTC