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
commit a28ba55b56c3c94a86524a8cd13cae9257d91376 Author: Kristian Høgsberg <krh@bitplanet.net> Date: Wed Oct 30 16:27:16 2013 -0700 launcher: Make sure we drop drm master before we allow VT switches On shutdown, we can risk having a pending vt switch that we normally handle in the vt signal handler. However as we put the vt back in VT_AUTO mode, the pending VT switch will go through and if we haven't dropped drm master at that point, we could switch to another display server without dropping drm master. That will typically crash the other server, so let's try to make sure we don't do that. https://bugs.freedesktop.org/show_bug.cgi?id=70877
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.