GNU gdb (GDB) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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For bug reporting instructions, please see:
<http://bugs.gentoo.org/>...
Reading symbols from /usr/bin/mutter...done.
(gdb) run --sync
Starting program: /usr/bin/mutter --sync
[Thread debugging using libthread_db enabled]
Window manager warning: Log level 8: gtk_style_context_get: assertion `priv->widget_path != NULL' failed
Window manager warning: Log level 8: gtk_style_context_get: assertion `priv->widget_path != NULL' failed
[New Thread 0x7fffe8d6c700 (LWP 22720)]
Window manager warning: Log level 16: The program 'mutter' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 874 error_code 8 request_code 7 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)


Program received signal SIGINT, Interrupt.
_XReply (dpy=0x619830, rep=0x7fffffffc860, extra=0, discard=1) at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/xcb_io.c:537
537	/var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/xcb_io.c: No such file or directory.
	in /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/xcb_io.c
(gdb) bt
#0  _XReply (dpy=0x619830, rep=0x7fffffffc860, extra=0, discard=1) at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/xcb_io.c:537
#1  0x00007ffff2f84dc0 in XSync (dpy=0x619830, discard=0) at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/Sync.c:44
#2  0x00007ffff2f84e74 in _XSyncFunction (dpy=0x0) at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/Synchro.c:35
#3  0x00007ffff4a393c4 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#4  0x00007ffff4a09381 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#5  0x00007ffff4a13e85 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#6  0x00007ffff4a1411c in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#7  0x00007ffff7dec25c in ?? () from /lib64/ld-linux-x86-64.so.2
#8  0x00007ffff723d255 in ?? () from /lib64/libc.so.6
#9  0x00007ffff723d2a5 in exit () from /lib64/libc.so.6
#10 0x00007ffff6080abc in _gdk_x11_display_error_event (display=0x629000, error=0x7fffffffce60) at gdkdisplay-x11.c:2375
#11 0x00007ffff608d33f in gdk_x_error (xdisplay=0x619830, error=0x7fffffffce60) at gdkmain-x11.c:312
#12 0x00007ffff2f8e41e in _XError (dpy=0x619830, rep=0x876610) at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/XlibInt.c:1583
#13 0x00007ffff2f8a02e in handle_error (dpy=0x619830, err=0x876610, in_XReply=1) at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/xcb_io.c:166
#14 0x00007ffff2f8a3ff in handle_response (dpy=0x619830, response=0x876610, in_XReply=1)
    at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/xcb_io.c:266
#15 0x00007ffff2f8aff5 in _XReply (dpy=0x619830, rep=0x7fffffffd0a0, extra=0, discard=1)
    at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/xcb_io.c:566
#16 0x00007ffff2f84dc0 in XSync (dpy=0x619830, discard=0) at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/Sync.c:44
#17 0x00007ffff2f84e74 in _XSyncFunction (dpy=0x0) at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/Synchro.c:35
#18 0x00007ffff2f8104f in XReparentWindow (dpy=0x619830, w=20971553, p=741, x=0, y=0)
    at /var/tmp/portage/x11-libs/libX11-1.4.3/work/libX11-1.4.3/src/RepWindow.c:49
#19 0x00007ffff7b23bf6 in meta_compositor_manage_screen (compositor=0x85ff40, screen=0x7eb1d0) at compositor/compositor.c:563
#20 0x00007ffff7b36699 in enable_compositor (display=0x7c7710, composite_windows=0) at core/display.c:382
#21 0x00007ffff7b3821d in meta_display_open () at core/display.c:823
#22 0x00007ffff7b4f033 in meta_run () at core/main.c:554
#23 0x0000000000400eeb in main (argc=1, argv=0x7fffffffdd58) at core/mutter.c:98
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