[Wayland-bugs] [Bug 66529] New: SIGSEGV in wl_list_insert during HDMI hotplug

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66529

          Priority: medium
            Bug ID: 66529
          Assignee: wayland-bugs at lists.freedesktop.org
           Summary: SIGSEGV in wl_list_insert during HDMI hotplug
          Severity: critical
    Classification: Unclassified
                OS: All
          Reporter: ullysses.a.eoff at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: weston
           Product: Wayland

Created attachment 81920
  --> https://bugs.freedesktop.org/attachment.cgi?id=81920&action=edit
gdb backtrace

Received SIGSEGV at weston_compositor_stack_plane()->wl_list_insert() in Weston
when hot-plugging HDMI display. See attached gdb backtrace and Weston output
log.

Steps
------
1. On laptop with LVDS and HDMI connector, ensure HDMI is unplugged.
2. Launch weston --backend=drm-backend.so
3. Hot-plug HDMI display
4. Hot-unplug HDMI display
5. Hot-plug HDMI display again.
6. Observe Weston SEGV

Software
--------

wayland (master) heads/master-0-g2e07587
fontconfig (master) heads/master-0-gcbf06d7
drm (master) libdrm-2.4.46-0-gc6d73cf
mesa (master) heads/master-0-g84f367e
libxkbcommon (master) heads/master-0-g6f06eb5
pixman (master) heads/master-0-g279bdcd
cairo (master) heads/master-0-g7b8fc77
weston (master) heads/master-0-gb08b329

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