Hello Paul, applying this two patches seem to solve the problem (at least here for me).
I'll keep this setup for now to test more. Kind regards, Robert On Tue, 19 Jun 2018 10:14:38 +0200 Paul Menzel <pmenzel+bugs.debian.org @molgen.mpg.de> wrote: > 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 > -- Robert <teh...@take3.ro>