Created attachment 102732 [details] weston core dump and executable i set the following variable in an x11 terminal: export LIBGL_ALWAYS_SOFTWARE=1 then ran weston. i moved a weston terminal window around a bunch, then closed that terminal window, then then clicked the close button for weston. then the core dumped. i'm running debian jessie + some sid on amd64. i've attached the core dump file and weston binary. Program terminated with signal 5, Trace/breakpoint trap. #0 0x00007f079501e7bb in raise (sig=5) at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37 37 ../nptl/sysdeps/unix/sysv/linux/pt-raise.c: No such file or directory. (gdb) backtrace #0 0x00007f079501e7bb in raise (sig=5) at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37 #1 0x0000000000410119 in on_caught_signal (s=11, siginfo=0x7fff199f4d30, context=0x7fff199f4c00) at src/compositor.c:3916 #2 <signal handler called> #3 0x0000000000407601 in wl_signal_emit (signal=0x2208208, data=0x2208200) at /home/sudoman/src/3rd-party/graphics/wayland/install/include/wayland-server.h:259 #4 0x000000000040af4a in weston_surface_destroy (surface=0x2208200) at src/compositor.c:1446 #5 0x00007f078944aad7 in fade_out_done (animation=0x24a00c0, data=0x1f43ff0) at desktop-shell/shell.c:3199 #6 0x000000000041d408 in weston_view_animation_destroy (animation=0x24a00c0) at src/animation.c:143 #7 0x000000000041d4dd in weston_view_animation_frame (base=0x24a00c8, output=0x16bef70, msecs=849598686) at src/animation.c:174 #8 0x000000000040c128 in weston_output_repaint (output=0x16bef70, msecs=849598686) at src/compositor.c:1863 #9 0x000000000040c20e in weston_output_finish_frame (output=0x16bef70, msecs=849598686) at src/compositor.c:1892 #10 0x00007f079464a6a0 in x11_output_start_repaint_loop (output=0x16bef70) at src/compositor-x11.c:347 #11 0x00007f079464abd6 in finish_frame_handler (data=0x16bef70) at src/compositor-x11.c:457 #12 0x00007f0795c1e485 in wl_event_source_timer_dispatch (source=0x1745100, ep=0x7fff199f5300) at src/event-loop.c:179 #13 0x00007f0795c1eb66 in wl_event_loop_dispatch (loop=0x1668220, timeout=-1) at src/event-loop.c:419 #14 0x00007f0795c1c9f7 in wl_display_run (display=0x1668190) at src/wayland-server.c:969 #15 0x0000000000410ddb in main (argc=1, argv=0x7fff199f57c8) at src/compositor.c:4326
This bug still exists, I've posted a potential fix on the mailing list http://lists.freedesktop.org/archives/wayland-devel/2014-December/019003.html The root cause is that the X11 event handler is processed in the middle of frame repaint just a few lines before the animations are updated. So if the x11 event handler destroys the output, the processing of animation events fails. LIBGL_ALWAYS_SOFTWARE=1 appears to be a red herring, though it may influence timing.
Mentioned patch was pushed to master some time ago. http://cgit.freedesktop.org/wayland/weston/commit/?id=6deb09ef8a72164947cdfa5f2414e292c7672c9c If the problem is still reproducible please feel free to reopen this bug. Thanks, Dawid
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