Dear Josh, dear Tehnic, dear Mourad, dear Jacek,
On 06/16/18 22:37, Josh Triplett wrote: > On Thu, Jun 14, 2018 at 11:59:20PM -0700, Josh Triplett wrote: >> On Thu, Jun 14, 2018 at 11:56:03PM -0700, Josh Triplett wrote: >>> reassign 901497 >>> retitle 901497 Xwayland: hangs spinning on write and SIGALRM >>> thanks >>> >>> After further investigation, I can reproduce this with Mesa 18.0.5-1 as >>> well, just not as often. >>> >>> After encountering this issue, I managed to switch to a text console, >>> and found that Xwayland was using 100% CPU. strace of the running >>> Xwayland produced the attached strace, in which Xwayland appears to be >>> spinning, running a zero-byte writev, and periodically processing a >>> SIGALRM. Other threads appear to be blocked on futexes. >> >> Forgot to attach the strace, sorry. Will provide one again next time it >> happens, but it consisted entirely of "write(14, [], 0) = 0" on one >> thread. > > Here's a fresh strace. I'm encountering this quite frequently. Could you please test if it’s the same issue as [1], and test the two X.Org X server commits below [2]? 1. https://cgit.freedesktop.org/xorg/xserver/commit/?id=3da999a 2. https://cgit.freedesktop.org/xorg/xserver/commit/?id=4d5950c Kind regards, Paul [1]: https://bugzilla.redhat.com/1579067 [2]: https://bugzilla.redhat.com/show_bug.cgi?id=1579067#c26
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