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[GC] id from different slab #10459

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vouillon opened this issue Mar 21, 2025 · 1 comment
Open

[GC] id from different slab #10459

vouillon opened this issue Mar 21, 2025 · 1 comment
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bug Incorrect behavior in the current implementation that needs fixing

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@vouillon
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Test Case

fail.zip

Steps to Reproduce

Run the following command:

./target/debug/wasmtime  -W=all-proposals=y fail.wasm

Expected Results

It should not crash.

Actual Results

We get a panic:

thread 'main' panicked at /home/jerome/sources/wasmtime/crates/slab/src/lib.rs:387:14:
id from different slab

Versions and Environment

Wasmtime commit: dbed370 (PR #10456)

Operating system: Linux

Architecture: x64
@vouillon vouillon added the bug Incorrect behavior in the current implementation that needs fixing label Mar 21, 2025
@fitzgen
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fitzgen commented Mar 21, 2025

Thanks! Will look into this next week

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@fitzgen @vouillon