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On 04-03-2026 00:17, Ian Rogers wrote: > On Mon, Jan 19, 2026 at 10:02 AM Swapnil Sapkal wrote: > [ snip ] >> + /* wait for signal */ >> + pause(); > > I'm seeing the perf sched stats test hang here, requiring me to kill > the perf process started by the test. It is unclear what signal is > being waited upon, but is there a race condition where the signal > could have occurred before the pause? Should the pause at least be > conditional on that happening? Given that a race condition would exist > even with a test, would it be better to use a condition variable? > I am able to reproduce the issue. There are other places also where the same issue can be reproduced. (e.g. with `perf lock contention -b`) I will propose a fix. > Thanks, > Ian -- Thanks and Regards, Swapnil