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InitOnce: synchronize with completion when already complete by DrMeepster · Pull...
source link: https://github.com/rust-lang/miri/pull/2641
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DrMeepster
commented
Oct 31, 2022
The completion of an InitOnce happens-before the threads waiting on it wake up. However, this is not the case for threads that call InitOnceBeginInitialize after the completion, leading to data races and outdated weak memory loads as observed in the CI for #2638. This PR fixes this.
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