julia
bd8350b3 - Fix memory corruption if task is launched inside finalizer (#50597)

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2 years ago
Fix memory corruption if task is launched inside finalizer (#50597) In #48919, the tid selection logic inside `enq_task` gained a `!GC.in_finalizer()` condition. However, this made it possible for `workqueue_at` to be reached with `tid==0`, which would attempt and out-of-bounds write under `@inbounds`, corrupting memory. This was not caught in the test suite despite `--check-bounds=yes`, because our `--check-bounds=yes` is currently best effort. That would be fixed by #50239, which exposed this bug. This PR attempts to fix this by marking any tasks launched inside a finalizer as not sticky. Finalizers don't have any thread they run on semantically, so i don't think there's a meaningful sense in which tasks launched inside finalizers could be sticky.
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