Bug 104239 - Weston crash in multihead/x11/nested client exit, window fade out
Summary: Weston crash in multihead/x11/nested client exit, window fade out
Alias: None
Product: Wayland
Classification: Unclassified
Component: weston (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Wayland bug list
QA Contact:
Depends on:
Reported: 2017-12-13 12:48 UTC by Pekka Paalanen
Modified: 2018-06-08 23:55 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Description Pekka Paalanen 2017-12-13 12:48:59 UTC
1. Running Xorg, start a parent Weston:
  $ weston --use-pixman --output-count=2 --width=700

2. open a weston-terminal

3. run child Weston from an X11 terminal outside of parent weston
  $ WAYLAND_DISPLAY=wayland-0 weston --use-pixman --fullscreen

4. mouse over the child window

5. Hit Ctrl-C in the X11 terminal where the child is running.

6. After the fade-out animation finishes, the parent Weston crashes:

==10922== Invalid read of size 8
==10922==    at 0x4E43A70: wl_signal_emit (wayland-server-core.h:467)
==10922==    by 0x4E487FB: weston_surface_destroy (compositor.c:1900)
==10922==    by 0xE54B151: fade_out_done_idle_cb (shell.c:2281)
==10922==    by 0x5081C0B: wl_event_loop_dispatch_idle (event-loop.c:600)
==10922==    by 0x5081CC1: wl_event_loop_dispatch (event-loop.c:646)
==10922==    by 0x5080454: wl_display_run (wayland-server.c:1245)
==10922==    by 0x4088E8: main (main.c:2140)
==10922==  Address 0x8 is not stack'd, malloc'd or (recently) free'd

Could be weston_surface destroy_signal list corruption or something.

Note, that I had to do all the steps exactly as above. Skip a step, and the crash does not happen.
Comment 1 GitLab Migration User 2018-06-08 23:55:46 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

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