Rollup merge of #137731 - SparrowLii:waiter, r=nnethercote

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Resume one waiter at once in deadlock handler

When multiple query loop errors occur in the code, only one waiter should be resumed at a time to avoid waking up multiple waiters at the same time and causing deadlock due to thread grabbing.

This fixes the UI failures in #132051

cc `@Zoxc` `@cjgillot` `@nnethercote` `@bjorn3` `@Kobzol`

Zulip discussion [here](https://rust-lang.zulipchat.com/#narrow/channel/187679-t-compiler.2Fwg-parallel-rustc/topic/Deadlocks.20and.20Rayon)

Edit: We can't reproduce these bugs with the existing test suits, so we keep them until we merge #132051
UPDATES #129912
UPDATES #120757
UPDATES #129911

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许杰友 Jieyou Xu (Joe) 2025-03-05 21:46:45 +08:00 committed by GitHub

parent 32b3c786ec e124f2d5df

commit 49c57bf82e

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