** Changed in: mutter
       Status: Unknown => New

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https://bugs.launchpad.net/bugs/2120597

Title:
  gnome-shell crashed with assertion failure:
  libmutter:ERROR:../mutter/src/wayland/meta-wayland-pointer-
  constraints.c:565:meta_wayland_pointer_constraint_deactivate: code
  should not be reached

Status in Mutter:
  New
Status in mutter package in Ubuntu:
  Confirmed

Bug description:
  This assertion failure is being reported from errors.ubuntu.com via
  bug 1962823, and upstream in
  https://gitlab.gnome.org/GNOME/mutter/-/issues/4248

  #10 0x00007070bcc288ff in __GI_abort () at ./stdlib/abort.c:79
          save_stage = 1
          act = {__sigaction_handler = {sa_handler = 0x20, sa_sigaction = 
0x20}, sa_mask = {__val = {99082694085472, 140733231225760, 123629515228533, 0, 
99082672840688, 99082671525056, 99082728518800, 140733193388032, 1, 
140733231225840, 18446744073709551496, 0, 99082728518784, 140733231225760, 
123629506059694, 140733231225872}}, sa_flags = 2127967376, sa_restorer = 
0x7070bd1b6014}
  #11 0x00007070bd506f5b in g_assertion_message 
(domain=domain@entry=0x7070bd1b6014 "libmutter", file=file@entry=0x7070bd1d9008 
"../src/wayland/meta-wayland-pointer-constraints.c", line=line@entry=565, 
func=func@entry=0x7070bd1eace0 <__func__.4.lto_priv.38> 
"meta_wayland_pointer_constraint_deactivate", 
message=message@entry=0x5a1d7cb7e9f0 "code should not be reached") at 
../../../glib/gtestutils.c:3331
          lstr = 
"565\0008\"\000\000\000\000\000\000\000\000\000\000\210\"q{\035Z\000\000\003\000\000\000\000\000\000"
          s = 0x5a1d7ed63490 "3a>#\030Z"
  #12 0x00007070bd56fbb7 in g_assertion_message_expr 
(domain=domain@entry=0x7070bd1b6014 "libmutter", file=file@entry=0x7070bd1d9008 
"../src/wayland/meta-wayland-pointer-constraints.c", line=line@entry=565, 
func=func@entry=0x7070bd1eace0 <__func__.4.lto_priv.38> 
"meta_wayland_pointer_constraint_deactivate", expr=expr@entry=0x0) at 
../../../glib/gtestutils.c:3357
          s = 0x5a1d7cb7e9f0 "code should not be reached"
  #13 0x00007070bd1533ec in meta_wayland_pointer_constraint_deactivate 
(constraint=<optimized out>) at 
../src/wayland/meta-wayland-pointer-constraints.c:565
          __func__ = <optimized out>
  #14 meta_wayland_pointer_constraint_deactivate (constraint=0x5a1d7efd4520) at 
../src/wayland/meta-wayland-pointer-constraints.c:551
          __func__ = "meta_wayland_pointer_constraint_deactivate"
  #15 0x00007070bd15556b in meta_wayland_input_invalidate_focus 
(input=<optimized out>, sequence=0x0, device=0x5a1d7be40060) at 
../src/wayland/meta-wayland-input.c:425
          head = <optimized out>
  #16 meta_wayland_input_invalidate_focus (sequence=0x0, device=0x5a1d7be40060, 
input=0x5a1d7bedf2e0) at ../src/wayland/meta-wayland-input.c:415
          head = <optimized out>
  #17 sync_focus_surface (pointer=0x5a1d7bedcb00) at 
../src/wayland/meta-wayland-pointer.c:335
          input_device = 0x5a1d7bedcb00
          seat = <optimized out>
          input = 0x5a1d7bedf2e0
          input_device = <optimized out>
          seat = <optimized out>
          input = <optimized out>
  #18 repick_for_event (for_event=0x5a1d7db5e8a0, pointer=0x5a1d7bedcb00) at 
../src/wayland/meta-wayland-pointer.c:619
          actor = <optimized out>
          surface = <optimized out>
          backend = <optimized out>
          stage = <optimized out>
          actor = <optimized out>
          surface = <optimized out>
          backend = <optimized out>
          stage = <optimized out>
          actor_wayland = <optimized out>
          window = <optimized out>
  #19 meta_wayland_pointer_update (pointer=0x5a1d7bedcb00, 
event=0x5a1d7db5e8a0) at ../src/wayland/meta-wayland-pointer.c:642
          input_device = 0x5a1d7bedcb00
          seat = <optimized out>
          compositor = <optimized out>
          context = <optimized out>
          display = 0x5a1d7beddb80
          event_type = CLUTTER_LEAVE
  #20 0x00007070bd0cfeca in meta_wayland_seat_update (event=0x5a1d7db5e8a0, 
seat=0x5a1d7bedb9e0) at ../src/wayland/meta-wayland-seat.c:457
  No locals.
  #21 meta_wayland_seat_update (event=0x5a1d7db5e8a0, seat=0x5a1d7bedb9e0) at 
../src/wayland/meta-wayland-seat.c:422
  No locals.
  #22 meta_wayland_compositor_update (compositor=0x5a1d7b6f1f30, 
event=0x5a1d7db5e8a0) at ../src/wayland/meta-wayland.c:468
  No locals.

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