When weston-launch is killed with SIGINT or SIGTERM, weston-launch exits as expected. However, attaching to the desktop-shell process prior to killing weston-launch reveals that desktop-shell segfaults (100% of the time). Further, the segv is masked. Running `echo $?` immediately after killing weston-launch does not give any indication of the desktop-shell segv. There is no stdout or stderr log messages indicating that an error occurred. This is undesired behavior. Steps to reproduce: 1. Run as a normal user (member of weston-launch group): weston-launch 2. Attach gdb to the desktop-shell process, continue execution 3. Kill weston-launch, either with SIGTERM or SIGINT 4. gdb will catch a segv It is expected that weston-launch somehow communicate an unclean exit from its shell (or modules). In actuality, whatever launched weston-launch is not informed of the unclean exit. State of (select components of) the s/w stack: wayland (master) heads/master-0-g7094441 mesa (HEAD) mesa-9.1.3-0-gf32ec82 cairo (HEAD) 1.12.8-0-gcc16291 weston (master) heads/master-0-ga58290b
Created attachment 81035 [details] backtrace of desktop-shell segv
The segv scenario is only exposed when weston is built with cairo-gl support. Lowering severity.
This was a mesa bug: commit 712269d6744a8849d1d0cf01fa0132d969b79ed4 Author: Kristian Høgsberg <krh@bitplanet.net> Date: Tue Jun 18 16:53:46 2013 -0400 wayland: Handle global_remove event as well We need to set up a handler for the global_remove event that gets sent out when a global gets removed. Without the handler we end up calling a NULL pointer. https://bugs.freedesktop.org/show_bug.cgi?id=65910 NOTE: This is a candidate for the stable branches. Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
(added EGL component for mesa, moved bug there)
Thanks krh! I can verify your fix corrects the reported issue, so I'm setting status to "verified." (In reply to comment #3) > This was a mesa bug: > > commit 712269d6744a8849d1d0cf01fa0132d969b79ed4 > Author: Kristian Høgsberg <krh@bitplanet.net> > Date: Tue Jun 18 16:53:46 2013 -0400 > > wayland: Handle global_remove event as well > > We need to set up a handler for the global_remove event that gets sent > out when a global gets removed. Without the handler we end up calling > a NULL pointer. > > https://bugs.freedesktop.org/show_bug.cgi?id=65910 > > NOTE: This is a candidate for the stable branches. > > Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
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.