#0  0xb7732424 in __kernel_vsyscall ()
#1  0xb7523aff in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  [Error: ../nptl/sysdeps/unix/sysv/linux/raise.c was not found in source tree]
#2  0xb7527083 in __GI_abort () at abort.c:90
  [Error: abort.c was not found in source tree]
#3  0xb751c857 in __assert_fail_base (fmt=0xb5db289f <Address 0xb5db289f out of bounds>, assertion=assertion@entry=0xb68bdd70 "!xcb_xlib_threads_sequence_lost", file=file@entry=0xb68bdbe3 "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0xb68bdffa <__PRETTY_FUNCTION__.14000> "poll_for_event") at assert.c:92
  [Error: assert.c was not found in source tree]
#4  0xb751c907 in __GI___assert_fail (assertion=assertion@entry=0xb68bdd70 "!xcb_xlib_threads_sequence_lost", file=file@entry=0xb68bdbe3 "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0xb68bdffa <__PRETTY_FUNCTION__.14000> "poll_for_event") at assert.c:101
  [Error: assert.c was not found in source tree]
#5  0xb6848fca in poll_for_event (dpy=dpy@entry=0xa328000) at ../../src/xcb_io.c:271
  [Error: ../../src/xcb_io.c was not found in source tree]
#6  0xb6849054 in poll_for_response (dpy=dpy@entry=0xa328000) at ../../src/xcb_io.c:289
  [Error: ../../src/xcb_io.c was not found in source tree]
#7  0xb68493bf in _XEventsQueued (dpy=dpy@entry=0xa328000, mode=mode@entry=1) at ../../src/xcb_io.c:363
  [Error: ../../src/xcb_io.c was not found in source tree]
#8  0xb683a680 in XEventsQueued (dpy=dpy@entry=0xa328000, mode=mode@entry=1) at ../../src/Pending.c:43
  [Error: ../../src/Pending.c was not found in source tree]
#9  0xb678a756 in _cairo_xlib_shm_info_cleanup (display=0xa5fd380) at /build/buildd/cairo-1.12.14/src/cairo-xlib-surface-shm.c:481
  [Error: /build/buildd/cairo-1.12.14/src/cairo-xlib-surface-shm.c was not found in source tree]
#10 _cairo_xlib_shm_info_create (will_sync=0, size=9216, display=0xa5fd380) at /build/buildd/cairo-1.12.14/src/cairo-xlib-surface-shm.c:640
  [Error: /build/buildd/cairo-1.12.14/src/cairo-xlib-surface-shm.c was not found in source tree]
#11 _cairo_xlib_shm_surface_create (format=format@entry=PIXMAN_a8r8g8b8, width=width@entry=48, height=height@entry=48, will_sync=will_sync@entry=0, create_pixmap=0, other=0xa64ce00, other=0xa64ce00) at /build/buildd/cairo-1.12.14/src/cairo-xlib-surface-shm.c:829
  [Error: /build/buildd/cairo-1.12.14/src/cairo-xlib-surface-shm.c was not found in source tree]
#12 0xb678b744 in _cairo_xlib_surface_create_shm (other=other@entry=0xa64ce00, format=PIXMAN_a8r8g8b8, width=48, height=48) at /build/buildd/cairo-1.12.14/src/cairo-xlib-surface-shm.c:1155
  [Error: /build/buildd/cairo-1.12.14/src/cairo-xlib-surface-shm.c was not found in source tree]
#13 0xb6780d54 in draw_image_boxes (_dst=0xa64ce00, image=0xa58ca00, boxes=0xbfe9d9d8, dx=0, dy=0) at /build/buildd/cairo-1.12.14/src/cairo-xlib-render-compositor.c:312
  [Error: /build/buildd/cairo-1.12.14/src/cairo-xlib-render-compositor.c was not found in source tree]
#14 0xb67680b3 in upload_boxes (boxes=0xbfe9d9d8, extents=0xbfe9dc40, compositor=<optimized out>) at /build/buildd/cairo-1.12.14/src/cairo-traps-compositor.c:1331
  [Error: /build/buildd/cairo-1.12.14/src/cairo-traps-compositor.c was not found in source tree]
#15 clip_and_composite_boxes (compositor=compositor@entry=0xb67fc140 <compositor.15964>, extents=extents@entry=0xbfe9dc40, boxes=boxes@entry=0xbfe9d9d8) at /build/buildd/cairo-1.12.14/src/cairo-traps-compositor.c:1725
  [Error: /build/buildd/cairo-1.12.14/src/cairo-traps-compositor.c was not found in source tree]
#16 0xb6768d32 in _cairo_traps_compositor_paint (_compositor=0xb67fc140 <compositor.15964>, extents=0xbfe9dc40) at /build/buildd/cairo-1.12.14/src/cairo-traps-compositor.c:2037
  [Error: /build/buildd/cairo-1.12.14/src/cairo-traps-compositor.c was not found in source tree]
#17 0xb67085e0 in _cairo_compositor_paint (compositor=0xb67fc140 <compositor.15964>, surface=surface@entry=0xa64ce00, op=op@entry=CAIRO_OPERATOR_SOURCE, source=source@entry=0xbfe9df6c, clip=clip@entry=0x0) at /build/buildd/cairo-1.12.14/src/cairo-compositor.c:65
  [Error: /build/buildd/cairo-1.12.14/src/cairo-compositor.c was not found in source tree]
#18 0xb67865d2 in _cairo_xlib_surface_paint (_surface=0xa64ce00, op=CAIRO_OPERATOR_SOURCE, source=0xbfe9df6c, clip=0x0) at /build/buildd/cairo-1.12.14/src/cairo-xlib-surface.c:1575
  [Error: /build/buildd/cairo-1.12.14/src/cairo-xlib-surface.c was not found in source tree]
#19 0xb67535cd in _cairo_surface_paint (clip=0x0, source=0xbfe9df6c, op=CAIRO_OPERATOR_SOURCE, surface=0xa64ce00) at /build/buildd/cairo-1.12.14/src/cairo-surface.c:2022
  [Error: /build/buildd/cairo-1.12.14/src/cairo-surface.c was not found in source tree]
#20 _cairo_surface_paint (surface=0xa64ce00, op=CAIRO_OPERATOR_SOURCE, source=0xbfe9df6c, clip=0x0) at /build/buildd/cairo-1.12.14/src/cairo-surface.c:1997
  [Error: /build/buildd/cairo-1.12.14/src/cairo-surface.c was not found in source tree]
#21 0xb67116ad in _cairo_gstate_paint (gstate=0xa4c3648) at /build/buildd/cairo-1.12.14/src/cairo-gstate.c:1067
  [Error: /build/buildd/cairo-1.12.14/src/cairo-gstate.c was not found in source tree]
#22 0xb670269b in INT_cairo_paint (cr=0xa4c34d8) at /build/buildd/cairo-1.12.14/src/cairo.c:1999
  [Error: /build/buildd/cairo-1.12.14/src/cairo.c was not found in source tree]
#23 0xb6a6a340 in gdk_window_update_icon (icon_list=<optimized out>, window=0xa5fe460) at /build/buildd/gtk+3.0-3.8.2/./gdk/x11/gdkwindow-x11.c:3595
  [Error: /build/buildd/gtk+3.0-3.8.2/./gdk/x11/gdkwindow-x11.c was not found in source tree]
#24 gdk_x11_window_set_icon_list (window=0xa5fe460, pixbufs=0xa47dd40) at /build/buildd/gtk+3.0-3.8.2/./gdk/x11/gdkwindow-x11.c:3724
  [Error: /build/buildd/gtk+3.0-3.8.2/./gdk/x11/gdkwindow-x11.c was not found in source tree]
#25 0xb6a416fd in gdk_window_set_icon_list (window=0xa5fe460, pixbufs=pixbufs@entry=0xa47dd40) at /build/buildd/gtk+3.0-3.8.2/./gdk/gdkwindow.c:10688
  [Error: /build/buildd/gtk+3.0-3.8.2/./gdk/gdkwindow.c was not found in source tree]
#26 0xb61aa5ff in gtk_window_realize_icon (window=window@entry=0xa6431c8) at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkwindow.c:3559
  [Error: /build/buildd/gtk+3.0-3.8.2/./gtk/gtkwindow.c was not found in source tree]
#27 0xb61b1951 in gtk_window_realize (widget=0xa6431c8) at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkwindow.c:5339
  [Error: /build/buildd/gtk+3.0-3.8.2/./gtk/gtkwindow.c was not found in source tree]
#28 0xb6ff8699 in ?? ()
#29 0x0a6431c8 in ?? ()