Fix supervisor race condition when spawning child processes on Windows#18171
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zanieb wants to merge 1 commit intozb/fix-bounce-race-iifrom
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Fix supervisor race condition when spawning child processes on Windows#18171zanieb wants to merge 1 commit intozb/fix-bounce-race-iifrom
zanieb wants to merge 1 commit intozb/fix-bounce-race-iifrom
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Set CREATE_SUSPENDED for Windows spawn supervision, assign the child to the job object, then resume the process. This removes the post-spawn assignment race for short-lived child processes. If job assignment fails, kill the suspended child before returning an error to avoid leaving a stuck suspended process.
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samypr100
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Mar 2, 2026
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| // We use `NtResumeProcess` later because `std::process::Child` does not | ||
| // expose the primary thread handle needed for `ResumeThread`. |
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I think you can use #![feature(windows_process_extensions_main_thread_handle)] and then do child.main_thread_handle().as_raw_handle() instead which allows you to use ResumeThread and avoid NtResumeProcess.
edit: nevermind, this is still nighly only 😆 my head is stuck in trampoline which is nightly
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We'll need an alternative of this like #18291 I presume |
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This is the same as #18170 but for
uvxanduv runinstead of trampolines.