Description of problem: "Alt + Tab" while the game "Sniper Elite 3" was running in Proton. Version-Release number of selected component: xorg-x11-server-Xwayland-21.1.1-1.fc35 Additional info: reporter: libreport-2.14.0 backtrace_rating: 4 cgroup: 0::/user.slice/user-1000.slice/user/session.slice/org.gnome.Shell cmdline: /usr/bin/Xwayland :0 -rootless -noreset -accessx -core -auth /run/user/1000/.mutter-Xwaylandauth.X93J20 -listenfd 4 -listenfd 5 -displayfd 6 -initfd 7 dso_list: /usr/bin/Xwayland xorg-x11-server-Xwayland-21.1.1-1.fc35.x86_64 (Fedora Project) 1618501995 executable: /usr/bin/Xwayland journald_cursor: s=d3b547d29e0944d0ae2f5ab1421e89e7;i=1b9d;b=6658ba1ec5f5454582f2eb2102bdf13c;m=7b77475ec;t=5c14e14a0bfc3;x=5d1b7178b15ef864 kernel: 5.13.0-0.rc0.20210428gitacd3d2859453.2.fc35.x86_64 rootdir: / runlevel: N 5 type: CCpp uid: 1000
Created attachment 1778333 [details] File: backtrace
Created attachment 1778334 [details] File: core_backtrace
Created attachment 1778335 [details] File: cpuinfo
Created attachment 1778336 [details] File: environ
Created attachment 1778337 [details] File: limits
Created attachment 1778338 [details] File: maps
Created attachment 1778339 [details] File: mountinfo
Created attachment 1778340 [details] File: open_fds
Created attachment 1778341 [details] File: proc_pid_status
Created attachment 1778342 [details] File: var_log_messages
Michel, it's a crash in present code.
(Not sure how I ended up putting a needinfo there…)
I suspect this is related to Mikhail's upstream reports where Xwayland freezes at 100% CPU instead of crashing. Maybe there's some kind of memory corruption which either causes a crash or an infinite loop. Still not the faintest how this could happen after staring at Present code for a long time, and all my attempts at reproducing have failed. :( If either problem could be reproduced with Xwayland running in valgrind, that might give a clue.
This bug appears to have been reported against 'rawhide' during the Fedora 35 development cycle. Changing version to 35.
This message is a reminder that Fedora Linux 35 is nearing its end of life. Fedora will stop maintaining and issuing updates for Fedora Linux 35 on 2022-12-13. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a 'version' of '35'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, change the 'version' to a later Fedora Linux version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora Linux 35 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora Linux, you are encouraged to change the 'version' to a later version prior to this bug being closed.
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