[v8.x backport] deps: cherry-pick 596d55a from upstream V8 #19486
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Analogous to this v9.x-staging PR submitted by @MylesBorins: nodejs#19477 I can confirm this fixes nodejs#19274 for the reproductions I've been using. Original commit message: Deoptimization and multithreading. When using Lockers and Unlockers it is possible to create a scenario where multiple threads point to the same optimized code object. When that happens, if one of the threads triggers deoptimization, then the stack replacement needs to happen in the stacks of all threads. With this CL, the deoptimizer visits all threads to do so. The CL also adds three tests where V8 used to crash due to this issue. Bug: v8:6563 Change-Id: I74e9af472d4833aa8d13e579df45133791f6a503 Reviewed-on: https://chromium-review.googlesource.com/670783 Reviewed-by: Jaroslav Sevcik <[email protected]> Commit-Queue: Juliana Patricia Vicente Franco <[email protected]> Cr-Commit-Position: refs/heads/master@{nodejs#48060} Refs: v8/v8@596d55a
nodejs-github-bot
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@benjamn the v9.x commit will land cleanly on v8.x. Closing this as a dupe so we don't need to get it through review twice. Thanks for opening and testing! |
MylesBorins
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Analogous to this v9.x-staging PR submitted by @MylesBorins: #19477
I can confirm this fixes #19274 for the reproductions I've been using.
Original commit message:
Refs: v8/v8@596d55a