Stream: git-wasmtime

Topic: wasmtime / issue #13798 Debug state slots don't correctly...

Wasmtime GitHub notifications bot (Jul 01 2026 at 18:23):

alexcrichton opened issue #13798:

Right now debug state slot management is documented as not supporting moving GCs, and at the time of creation we indeed didn't have a moving GC. Nowadays though with copying as the default collector we do indeed have a moving GC, so either this comment needs updating or the implementation needs updating as well.

Wasmtime GitHub notifications bot (Jul 01 2026 at 18:23):

alexcrichton added the wasmtime:debugging label to Issue #13798.

Wasmtime GitHub notifications bot (Jul 01 2026 at 18:23):

alexcrichton added the wasm-proposal:gc label to Issue #13798.

Wasmtime GitHub notifications bot (Jul 01 2026 at 23:20):

cfallin closed issue #13798:

Right now debug state slot management is documented as not supporting moving GCs, and at the time of creation we indeed didn't have a moving GC. Nowadays though with copying as the default collector we do indeed have a moving GC, so either this comment needs updating or the implementation needs updating as well.

Wasmtime GitHub notifications bot (Jul 01 2026 at 23:20):

cfallin commented on issue #13798:

(hi from PTO -- just dropping in briefly)

That's an outdated comment fortunately; the values in debug state slots are fully rooted and will be updated by a moving GC. I'll put this on my todo list to update that comment when I'm back.

Last updated: Jul 29 2026 at 05:03 UTC