Xwayland segfaults when using kvm (since 2:1.19.3-1ubuntu4)

[Sebastien Bacher]

Using GNOME/wayland in artful, I get that Xwayland/shell segfault when using kvm

Thread 1 "Xwayland" received signal SIGSEGV, Segmentation fault.
0x00000092f4790b6e in zwp_pointer_constraints_v1_lock_pointer (lifetime=2, region=0x0, pointer=<optimized out>, surface=<optimized out>, zwp_pointer_constraints_v1=0x92f72d8060)
    at ./pointer-constraints-unstable-v1-client-protocol.h:347
347 ./pointer-constraints-unstable-v1-client-protocol.h: Aucun fichier ou dossier de ce type.
#0 0x00000092f4790b6e in zwp_pointer_constraints_v1_lock_pointer (lifetime=2, region=0x0, pointer=<optimized out>, surface=<optimized out>,
    zwp_pointer_constraints_v1=0x92f72d8060) at ./pointer-constraints-unstable-v1-client-protocol.h:347
#1 xwl_pointer_warp_emulator_lock (warp_emulator=0x92f7951ab0) at ../../../../../hw/xwayland/xwayland-input.c:2590
#2 0x00000092f47930f8 in xwl_seat_maybe_lock_on_hidden_cursor (xwl_seat=xwl_seat@entry=0x92f72d7dd0) at ../../../../../hw/xwayland/xwayland-input.c:2762
#3 0x00000092f4794660 in xwl_seat_maybe_lock_on_hidden_cursor (xwl_seat=0x92f72d7dd0) at ../../../../../hw/xwayland/xwayland-input.c:2823
#4 xwl_seat_confine_pointer (xwl_seat=0x92f72d7dd0, xwl_window=0x92f7464630) at ../../../../../hw/xwayland/xwayland-input.c:2814
#5 0x00000092f48d60cf in ActivatePointerGrab (mouse=0x92f724e890, grab=0x92f797b910, time=..., autoGrab=<optimized out>) at ../../../../dix/events.c:1531
#6 0x00000092f48d0db4 in GrabDevice (client=client@entry=0x92f769b470, dev=dev@entry=0x92f724e890, pointer_mode=1, keyboard_mode=1, grabWindow=<optimized out>,
    ownerEvents=<optimized out>, ctime=0, mask=0x7ffcba605420, grabtype=1, curs=0, confineToWin=31457299, status=0x7ffcba60541f "") at ../../../../dix/events.c:5120
#7 0x00000092f48d3a1a in ProcGrabPointer (client=0x92f769b470) at ../../../../dix/events.c:4908
#8 0x00000092f48c5e58 in Dispatch () at ../../../../dix/dispatch.c:479
#9 0x00000092f48c9e80 in dix_main (argc=10, argv=0x7ffcba605628, envp=<optimized out>) at ../../../../dix/main.c:287
#10 0x00007f6be880b421 in __libc_start_main (main=0x92f478ec50 <main>, argc=10, argv=0x7ffcba605628, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
    stack_end=0x7ffcba605618) at ../csu/libc-start.c:291
#11 0x00000092f478ec8a in _start ()

[Sebastien Bacher (seb128)]

Reported upstream on https://bugs.freedesktop.org/show_bug.cgi?id=102474

[Launchpad Janitor (janitor)]

This bug was fixed in the package xorg-server - 2:1.19.3-1ubuntu6

---------------
xorg-server (2:1.19.3-1ubuntu6) artful; urgency=medium

  * xwayland-add-grab-protocol-support.diff: Dropped, causes issues with
    kvm. (LP: #1713981)

 -- Timo Aaltonen <email address hidden> Wed, 30 Aug 2017 14:42:05 +0300