28d5f133df
It could happen (e.g. with --stress-background-compile) that the main thread blocks for a background thread but the background thread requests a GC from the main thread. This would result in a deadlock. Avoid this by parking the main thread for potentially blocking operations and allow allocations while the main thread is parked. This CL introduces new states for the main thread: CollectionRequested and ParkedCollectionRequested. These states will force Safepoint(), Park() and Unpark() on the main thread into slow paths. The slow path can then perform a GC on the main thread - right before parking or after the main thread got unparked. Bug: v8:10315 Change-Id: If7ef31622d27320613139a0b7f79086fe3200f99 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2731528 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> Cr-Commit-Position: refs/heads/master@{#73707} |
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V8 JavaScript Engine
V8 is Google's open source JavaScript engine.
V8 implements ECMAScript as specified in ECMA-262.
V8 is written in C++ and is used in Google Chrome, the open source browser from Google.
V8 can run standalone, or can be embedded into any C++ application.
V8 Project page: https://v8.dev/docs
Getting the Code
Checkout depot tools, and run
fetch v8
This will checkout V8 into the directory v8 and fetch all of its dependencies.
To stay up to date, run
git pull origin
gclient sync
For fetching all branches, add the following into your remote
configuration in .git/config:
fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
fetch = +refs/tags/*:refs/tags/*
Contributing
Please follow the instructions mentioned at v8.dev/docs/contribute.