Hi, I'm starting a new thread regarding crashes on background changes coming from gnome-settings-daemon. Now it is about FvwmButtons =)
After Dominik's update to error handler, I was able to obtain core dump for FvwmButtons. Gdb log attached (I could not figure out what's wrong there, but I guess something has happened in previous loop iteration in change_colorset(). Error message stayed the same: ComboPanel: Cause of next X Error. Error: 13 (BadGC (invalid GC parameter)) Major opcode of failed request: 70 (PolyFillRectangle) Minor opcode of failed request: 0 Resource id of failed request: 0xe00020 Leaving a core dump now I have inseted two more XSyncs in FvwmButtons.c for debugging purposes: one in SetTransparentBackground() and another one in change_swallowed_window_colorset(), but backtrace did not change. Hope this will be helpful. I still has the core dump so I can retrieve some more information if you need it. Regards, Roman
GNU gdb 6.7.1-debian Copyright (C) 2007 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu"... Using host libthread_db library "/lib/i686/cmov/libthread_db.so.1". warning: Can't read pathname for load map: Input/output error. Reading symbols from /usr/lib/libXft.so.2...done. Loaded symbols for /usr/lib/libXft.so.2 Reading symbols from /usr/lib/libX11.so.6...done. Loaded symbols for /usr/lib/libX11.so.6 Reading symbols from /usr/lib/libfreetype.so.6...done. Loaded symbols for /usr/lib/libfreetype.so.6 Reading symbols from /usr/lib/libz.so.1...done. Loaded symbols for /usr/lib/libz.so.1 Reading symbols from /usr/lib/libfontconfig.so.1...done. 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Loaded symbols for /usr/lib/libpangocairo-1.0.so.0 Reading symbols from /usr/lib/libpango-1.0.so.0...done. Loaded symbols for /usr/lib/libpango-1.0.so.0 Reading symbols from /usr/lib/libpcre.so.3...done. Loaded symbols for /usr/lib/libpcre.so.3 Reading symbols from /usr/lib/libXdmcp.so.6...done. Loaded symbols for /usr/lib/libXdmcp.so.6 Reading symbols from /lib/i686/cmov/libpthread.so.0...done. Loaded symbols for /lib/i686/cmov/libpthread.so.0 Reading symbols from /lib/libbz2.so.1.0...done. Loaded symbols for /lib/libbz2.so.1.0 Core was generated by `/home/busa/apps/fvwm-cvs/libexec/fvwm/2.5.25/FvwmButtons 8 5 none 0 8 -g 816x35'. Program terminated with signal 11, Segmentation fault. #0 PrintXErrorAndCoredump (dpy=0x8091de0, error=0xbf82e60c, MyName=0x808b068 "ComboPanel") at XError.c:85 85 *nullp = 99; (gdb) bt #0 PrintXErrorAndCoredump (dpy=0x8091de0, error=0xbf82e60c, MyName=0x808b068 "ComboPanel") at XError.c:85 #1 0x0804fa97 in myErrorHandler (dpy=0x8091de0, event=0xbf82e60c) at FvwmButtons.c:577 #2 0xb7e8c8b3 in _XError () from /usr/lib/libX11.so.6 #3 0xb7e94069 in ?? () from /usr/lib/libX11.so.6 #4 0x08091de0 in ?? () #5 0x080c2600 in ?? () #6 0xbf82e6b8 in ?? () #7 0xb7e934c1 in _XGetXCBBuffer () from /usr/lib/libX11.so.6 #8 0xb7e943ea in _XReply () from /usr/lib/libX11.so.6 #9 0xb7e88338 in XSync () from /usr/lib/libX11.so.6 #10 0x0804dfcb in change_colorset (colorset=11, Event=0x0) at FvwmButtons.c:2705 #11 0x0805063a in process_message (type=262144, body=0x8088b50) at FvwmButtons.c:2735 #12 0x08050939 in My_FNextEvent (Dpy=0x8091de0, event=0xbf82ea68) at FvwmButtons.c:2443 #13 0x08051680 in Loop () at FvwmButtons.c:1068 #14 0x08052fc6 in main (argc=9, argv=0xbf82ed04) at FvwmButtons.c:878 (gdb) info locals msg = "BadGC (invalid GC parameter)", '\0' <repeats 227 times> suc = <value optimized out> (gdb) frame 10 #10 0x0804dfcb in change_colorset (colorset=11, Event=0x0) at FvwmButtons.c:2705 2705 XSync(Dpy, 0); (gdb) list 2700 { 2701 if (b->swallow&b_FvwmModule) 2702 { 2703 /* the bg has changed send the info to 2704 * modules */ 2705 XSync(Dpy, 0); 2706 send_bg_change_to_module(b, Event); 2707 } 2708 else if (CSET_IS_TRANSPARENT_PR(b->colorset) && 2709 !buttonBackgroundButton(b->parent, NULL)) (gdb) info locals ub = (button_info *) 0x80a0448 b = (button_info *) 0x80a5e90 button = 20 (gdb) info args colorset = 11 Event = (XEvent *) 0x0 (gdb) quit
