[Wayland-bugs] [Bug 70877] New: vt-switching to X-session during weston shutdown crashes X-session

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70877

          Priority: medium
            Bug ID: 70877
          Assignee: wayland-bugs at lists.freedesktop.org
           Summary: vt-switching to X-session during weston shutdown
                    crashes X-session
          Severity: major
    Classification: Unclassified
                OS: All
          Reporter: ullysses.a.eoff at intel.com
          Hardware: Other
            Status: NEW
           Version: 1.3.0
         Component: weston
           Product: Wayland

When weston is shutting down/exiting, and attempting to immediately vt-switch
to a running X-session, the X-session crashes.  If you wait long enough for
weston to shutdown before attempting a vt-switch, then X does not crash.

Steps
====================
1. Open a new console/tty
2. Execute 'weston' (as suid/root)
3. Kill/exit weston with <ctrl>+<alt>+<backspace> and then quickly vt-switch
(e.g. <ctrl>+<alt>+<F1>) to a running X-session.
4. Observe that the X-session crashes

/var/log/Xorg.0.log
====================
[  2107.854] (II) AIGLX: Resuming AIGLX clients after VT switch
[  2107.854] (WW) intel(0): drmSetMaster failed: Invalid argument
[  2107.854] (EE) intel(0): failed to set mode: Permission denied
[  2107.854] 
Fatal server error:
[  2107.854] EnterVT failed for screen 0
[  2107.854] 
[  2107.854] (EE) 
Please consult the Fedora Project support 
     at http://wiki.x.org
 for help. 
[  2107.854] (EE) Please also check the log file at "/var/log/Xorg.0.log" for
additional information.
[  2107.854] (EE) 
[  2107.854] (II) AIGLX: Suspending AIGLX clients for VT switch
[  2107.854] (WW) intel(0): drmDropMaster failed: Invalid argument
[  2107.858] Server terminated with error (1). Closing log file.

Software Stack
====================
wayland (1.3) heads/1.3-0-g84247b7
drm (master) libdrm-2.4.46-0-gc6d73cf
mesa (9.2) heads/9.2-0-g7ab2b8c
libva (master) libva-1.2.1-0-g88ed1eb
intel-driver (master) 1.2.1-0-g8f306e3
weston (1.3) heads/1.3-0-gdf566b2

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