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78aaa0e823
It's not OK to do that without calling CHECK_FOR_INTERRUPTS(). Let the next wait loop deal with it, following the usual pattern. One consequence of this bug was that a SIGTERM delivered in a very narrow timing window could leave a parallel worker process waiting forever for a condition variable that will never be signaled, after an error was raised in other process. The code is a bit different in the stable branches due to commit 1321509f, making problems less likely there. No back-patch for now, but we may finish up deciding to make a similar change after more discussion. Author: Thomas Munro Reviewed-by: Shawn Debnath Reported-by: Tomas Vondra Discussion: https://postgr.es/m/CA%2BhUKGJOm8zZHjVA8svoNT3tHY0XdqmaC_kHitmgXDQM49m1dA%40mail.gmail.com