Comment 26 for bug 1731911
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#26 |
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35a32c5
(Get the code!)
This is simply Xwayland telling your Wayland compositor (namely gnome-shell/mutter) has died.
Basically, gnome-shell (now) runs Xwayland with “-core” which means that *any* FatalError() in Xwayland will dump a core file.
xwl_read_events() triggers a FatalError() because the Wayland socket is unusable, and it's unusable because the Wayland compositor (the other side of the socket) has died, i.e. crashed most likely.
The Wayland compositor is gnome-shell/mutter, so if you could please look into journalctl and coredumpctl to find a backtrace and/or generate one with coredumpctl and gdb.
From comment 15, this is most likely a dupe of bug 1500325.