Using Arch Linux package version 1.5.0-1. Crashes usually happen after about a minute, give or take. Additional info: My weston.ini has [core] modules=xwayland.so,desktop-shell.so Steps to reproduce: Open any X app (I used glxgears) in weston with XWayland enabled and play around with it for about a minute. Two backtraces: Reading symbols from /usr/bin/weston...done. [New LWP 1003] [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". Core was generated by `/usr/bin/weston'. Program terminated with signal SIGTRAP, Trace/breakpoint trap. #0 0x00007fa251329d67 in raise () from /usr/lib/libc.so.6 (gdb) bt #0 0x00007fa251329d67 in raise () from /usr/lib/libc.so.6 #1 <signal handler called> #2 surface_resize (shsurf=0xfe75a0, seat=0x0, edges=1) at desktop-shell/shell.c:1772 #3 0x00007fa24ba3452f in weston_wm_handle_button (wm=<optimized out>, wm=<optimized out>, event=<optimized out>) at xwayland/window-manager.c:1650 #4 weston_wm_handle_event (fd=0, mask=16847332, data=0xfcc7a0) at xwayland/window-manager.c:1742 #5 0x00007fa2522b8042 in wl_event_loop_dispatch () from /usr/lib/libwayland-server.so.0 #6 0x00007fa2522b6535 in wl_display_run () from /usr/lib/libwayland-server.so.0 #7 0x0000000000407d9b in main (argc=1, argv=<optimized out>) at src/compositor.c:4316 (gdb) quit Reading symbols from /usr/bin/weston...done. [New LWP 23814] [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". Core was generated by `/usr/bin/weston'. Program terminated with signal SIGTRAP, Trace/breakpoint trap. #0 0x00007fe8d4617d67 in raise () from /usr/lib/libc.so.6 (gdb) bt #0 0x00007fe8d4617d67 in raise () from /usr/lib/libc.so.6 #1 <signal handler called> #2 surface_move (shsurf=0xafa060, client_initiated=1, seat=<optimized out>) at desktop-shell/shell.c:1577 #3 0x00007fe8ced22550 in weston_wm_handle_button (wm=<optimized out>, wm=<optimized out>, event=<optimized out>) at xwayland/window-manager.c:1645 #4 weston_wm_handle_event (fd=11534192, mask=11510576, data=0xe45800) at xwayland/window-manager.c:1742 #5 0x00007fe8d55a6042 in wl_event_loop_dispatch () from /usr/lib/libwayland-server.so.0 #6 0x00007fe8d55a4535 in wl_display_run () from /usr/lib/libwayland-server.so.0 #7 0x0000000000407d9b in main (argc=1, argv=<optimized out>) at src/compositor.c:4316 (gdb) quit
Created attachment 104968 [details] [review] A patch that may fix the issue Please test this patch although I can't reproduce it myself. If weston no longer crashes at weston_wm_handle_button (1.5.0 has some other bugs elsewhere which have been fixed upstream). I'll send it to the mailing list.
Okay, managed to reproduce the bug. Patch sent at http://lists.freedesktop.org/archives/wayland-devel/2014-August/016975.html
Supposedly fixed by commit 3c6d20c5eb51d20dce337961a3a5e5342315da49 Author: Boyan Ding <stu_dby@126.com> Date: Wed Sep 3 17:25:30 2014 +0800 xwm: Check whether the seat is NULL when needed in weston_wm_handle_button
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