Xwayland fatal error when Wayland output disappears

[Michael Thayer]

Hello,

Reporting this here in case it is of interest.  I have been debugging
regular desktop crashes on my new Ubuntu 17.10 systems.  One of them
seems to happen when Xwayland FatalError-s out because a Wayland output
disappears.  I have only investigated this so far, but hopefully this
will be helpful to someone who knows it better: the error is
"wl_registry at 2: error 0: invalid global wl_output (28)", which seems to
be posted by wl_registry_bind in wayland-server.c, and get picked up in
xwl_log_handler in Xwayland.  Xwayland exiting in turn causes GNOME
Shell to panic.

Regards
Michael
-- 
Michael Thayer | VirtualBox engineer
ORACLE Deutschland B.V. & Co. KG | Werkstr. 24 | D-71384 Weinstadt

ORACLE Deutschland B.V. & Co. KG
Hauptverwaltung: Riesstraße 25, D-80992 München
Registergericht: Amtsgericht München, HRA 95603

Komplementärin: ORACLE Deutschland Verwaltung B.V.
Hertogswetering 163/167, 3543 AS Utrecht, Niederlande Handelsregister
der Handelskammer Midden-Nederland, Nr. 30143697
Geschäftsführer: Alexander van der Ven, Jan Schultheiss, Val Maher