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src: enter isolate before destructing IsolateData #51138

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merged 1 commit into from
Dec 25, 2023

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bnoordhuis
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MVP fix for a worker_threads crash where ~WorkerThreadData() -> ~IsolateData() -> Isolate::DetachCppHeap() kicks off a round of garbage collection that expects an entered isolate.

No test because the crash is not reliably reproducable but the bug is pretty clearly described in the linked issue and is obvious once you see it, IMO.

Fixes: #51129

MVP fix for a worker_threads crash where ~WorkerThreadData() ->
~IsolateData() -> Isolate::DetachCppHeap() kicks off a round of
garbage collection that expects an entered isolate.

No test because the crash is not reliably reproducable but the bug
is pretty clearly described in the linked issue and is obvious once
you see it, IMO.

Fixes: nodejs#51129
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targos commented Dec 13, 2023

@nodejs/cpp-reviewers

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lpinca commented Dec 13, 2023

@nodejs/workers

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joyeecheung commented Dec 16, 2023

By the way it just occurred to me - consider this non-blocking - why can we not just do this directly in the IsolateData destructor instead? That would correct this for the embedder-facing node::FreeIsolateData() as well.

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I considered that but I'm not 100% sure it won't cause deadlocks.

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LGTM

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@lpinca lpinca added the commit-queue Add this label to land a pull request using GitHub Actions. label Dec 25, 2023
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@nodejs-github-bot nodejs-github-bot merged commit aa87b77 into nodejs:main Dec 25, 2023
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Landed in aa87b77

RafaelGSS pushed a commit that referenced this pull request Jan 2, 2024
MVP fix for a worker_threads crash where ~WorkerThreadData() ->
~IsolateData() -> Isolate::DetachCppHeap() kicks off a round of
garbage collection that expects an entered isolate.

No test because the crash is not reliably reproducable but the bug
is pretty clearly described in the linked issue and is obvious once
you see it, IMO.

Fixes: #51129
PR-URL: #51138
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
@RafaelGSS RafaelGSS mentioned this pull request Jan 2, 2024
richardlau pushed a commit that referenced this pull request Mar 25, 2024
MVP fix for a worker_threads crash where ~WorkerThreadData() ->
~IsolateData() -> Isolate::DetachCppHeap() kicks off a round of
garbage collection that expects an entered isolate.

No test because the crash is not reliably reproducable but the bug
is pretty clearly described in the linked issue and is obvious once
you see it, IMO.

Fixes: #51129
PR-URL: #51138
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
@richardlau richardlau mentioned this pull request Mar 25, 2024
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worker_threads: race and crash on worker exit