GNU gdb (Gentoo 7.5 p1) 7.5
Copyright (C) 2012 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 "x86_64-pc-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.gentoo.org/>.
Attaching to process 6930
Reading symbols from /usr/bin/gnome-shell...(no debugging symbols found)...done.

warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
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[New LWP 6937]
[New LWP 6936]
[New LWP 6935]
[New LWP 6934]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
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Reading symbols from /usr/lib64/pango/1.6.0/modules/pango-basic-fc.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/pango/1.6.0/modules/pango-basic-fc.so
Reading symbols from /usr/lib64/gconv/ISO8859-1.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/gconv/ISO8859-1.so
Reading symbols from /usr/lib64/folks/30/backends/key-file/key-file.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/folks/30/backends/key-file/key-file.so
Reading symbols from /usr/lib64/folks/30/backends/telepathy/telepathy.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/folks/30/backends/telepathy/telepathy.so
Reading symbols from /usr/lib64/libfolks-telepathy.so.25...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libfolks-telepathy.so.25
Reading symbols from /usr/lib64/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-jpeg.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-jpeg.so
Reading symbols from /usr/lib64/libjpeg.so.8...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libjpeg.so.8
Reading symbols from /usr/lib64/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-png.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-png.so
0x00007f89c714d0b3 in poll () from /lib64/libc.so.6
(gdb) bt
#0  0x00007f89c714d0b3 in poll () from /lib64/libc.so.6
#1  0x00007f89c2412dca in _xcb_conn_wait () from /usr/lib64/libxcb.so.1
#2  0x00007f89c24142f7 in wait_for_reply () from /usr/lib64/libxcb.so.1
#3  0x00007f89c24144f9 in xcb_wait_for_reply () from /usr/lib64/libxcb.so.1
#4  0x00007f89c0f3c26d in _XReply () from /usr/lib64/libX11.so.6
#5  0x00007f89c312353f in DRI2GetMSC () from /usr/lib64/libGL.so.1
#6  0x00007f89c3121c78 in dri2DrawableGetMSC () from /usr/lib64/libGL.so.1
#7  0x00007f89c30f7c77 in __glXGetVideoSyncSGI () from /usr/lib64/libGL.so.1
#8  0x00007f89c2ca121f in _cogl_winsys_get_vsync_counter () from /usr/lib64/libcogl.so.5
#9  0x00007f89c2ca17ab in _cogl_winsys_onscreen_swap_region () from /usr/lib64/libcogl.so.5
#10 0x00007f89c8804fb0 in clutter_stage_cogl_redraw () from /usr/lib64/libclutter-glx-1.0.so.0
#11 0x00007f89c8867892 in _clutter_stage_do_update () from /usr/lib64/libclutter-glx-1.0.so.0
#12 0x00007f89c884edc0 in clutter_clock_dispatch () from /usr/lib64/libclutter-glx-1.0.so.0
#13 0x00007f89c76a3553 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#14 0x00007f89c76a38a0 in g_main_context_iterate.isra.23 () from /usr/lib64/libglib-2.0.so.0
#15 0x00007f89c76a3c9a in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#16 0x00007f89c93b0b61 in meta_run () from /usr/lib64/libmutter.so.0
#17 0x0000000000403134 in main ()
(gdb) Detaching from program: /usr/bin/gnome-shell, process 6930
