src: discard tasks posted to platform TaskRunner during shutdown #31853
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Discard tasks silently that are posted when the Isolate is being disposed. It is not possible to avoid a race condition window between unregistering the Isolate with the platform and disposing it in which background tasks and the Isolate deinit steps themselves may lead to new tasks being posted. The only sensible action in that case is discarding the tasks. Fixes: nodejs#31752 Fixes: https://bugs.chromium.org/p/v8/issues/detail?id=10104 Refs: https://chromium-review.googlesource.com/c/v8/v8/+/2061548 Refs: nodejs#31795 Refs: nodejs#30909
…pose" This reverts commit e460f8c. It is no longer necessary after the previous commit, and restores consistency of the call order between the main thread code, the other call sites, and the documentation. Refs: nodejs#31795
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After thinking about it, I think this also means that we can and should let go of the |
gahaas
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joyeecheung
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Discard tasks silently that are posted when the Isolate is being disposed. It is not possible to avoid a race condition window between unregistering the Isolate with the platform and disposing it in which background tasks and the Isolate deinit steps themselves may lead to new tasks being posted. The only sensible action in that case is discarding the tasks. Fixes: #31752 Fixes: https://bugs.chromium.org/p/v8/issues/detail?id=10104 Refs: https://chromium-review.googlesource.com/c/v8/v8/+/2061548 Refs: #31795 Refs: #30909 PR-URL: #31853 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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Landed in d7fe554...61f28fb |
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Discard tasks silently that are posted when the Isolate is being disposed. It is not possible to avoid a race condition window between unregistering the Isolate with the platform and disposing it in which background tasks and the Isolate deinit steps themselves may lead to new tasks being posted. The only sensible action in that case is discarding the tasks. Fixes: #31752 Fixes: https://bugs.chromium.org/p/v8/issues/detail?id=10104 Refs: https://chromium-review.googlesource.com/c/v8/v8/+/2061548 Refs: #31795 Refs: #30909 PR-URL: #31853 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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Discard tasks silently that are posted when the Isolate is being disposed. It is not possible to avoid a race condition window between unregistering the Isolate with the platform and disposing it in which background tasks and the Isolate deinit steps themselves may lead to new tasks being posted. The only sensible action in that case is discarding the tasks. Fixes: #31752 Fixes: https://bugs.chromium.org/p/v8/issues/detail?id=10104 Refs: https://chromium-review.googlesource.com/c/v8/v8/+/2061548 Refs: #31795 Refs: #30909 PR-URL: #31853 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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Discard tasks silently that are posted when the Isolate is being disposed. It is not possible to avoid a race condition window between unregistering the Isolate with the platform and disposing it in which background tasks and the Isolate deinit steps themselves may lead to new tasks being posted. The only sensible action in that case is discarding the tasks. Fixes: #31752 Fixes: https://bugs.chromium.org/p/v8/issues/detail?id=10104 Refs: https://chromium-review.googlesource.com/c/v8/v8/+/2061548 Refs: #31795 Refs: #30909 PR-URL: #31853 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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Discard tasks silently that are posted when the Isolate is being disposed. It is not possible to avoid a race condition window between unregistering the Isolate with the platform and disposing it in which background tasks and the Isolate deinit steps themselves may lead to new tasks being posted. The only sensible action in that case is discarding the tasks. Fixes: #31752 Fixes: https://bugs.chromium.org/p/v8/issues/detail?id=10104 Refs: https://chromium-review.googlesource.com/c/v8/v8/+/2061548 Refs: #31795 Refs: #30909 PR-URL: #31853 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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@addaleax can this now land on v12.x or does it depend on something else? |
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@targos Yes, I think this can go ahead. |
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…pose" This reverts commit e460f8c. It is no longer necessary after the previous commit, and restores consistency of the call order between the main thread code, the other call sites, and the documentation. Refs: nodejs#31795 PR-URL: nodejs#31853 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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Following the discussion in https://chromium-review.googlesource.com/c/v8/v8/+/2061548:
src: discard tasks posted to platform TaskRunner during shutdown
Discard tasks silently that are posted when the Isolate is being
disposed.
It is not possible to avoid a race condition window between
unregistering the Isolate with the platform and disposing it
in which background tasks and the Isolate deinit steps themselves
may lead to new tasks being posted. The only sensible action
in that case is discarding the tasks.
Fixes: #31752
Fixes: https://bugs.chromium.org/p/v8/issues/detail?id=10104
Refs: https://chromium-review.googlesource.com/c/v8/v8/+/2061548
Refs: #31795
Refs: #30909
Revert "src: keep main-thread Isolate attached to platform during Dispose"
This reverts commit e460f8c.
It is no longer necessary after the previous commit, and restores
consistency of the call order between the main thread code,
the other call sites, and the documentation.
Refs: #31795
Checklist
make -j4 test(UNIX), orvcbuild test(Windows) passes