.
Thread 3 (LWP 8030):
#0  0x00007f4759bb33dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f47591b86b4 in ?? ()
No symbol table info available.
#2  0x0000007c00000077 in ?? ()
No symbol table info available.
#3  0x000000014f23de00 in ?? ()
No symbol table info available.
#4  0x00000000024fd9f0 in ?? ()
No symbol table info available.
#5  0xffffffff7fffffff in ?? ()
No symbol table info available.
#6  0x00007f4759470080 in ?? ()
No symbol table info available.
#7  0x00000000024fd9f0 in ?? ()
No symbol table info available.
#8  0x0000000000000001 in ?? ()
No symbol table info available.
#9  0x00007f4759470080 in ?? ()
No symbol table info available.
#10 0x00007f475abf1060 in ?? ()
No symbol table info available.
#11 0x00007fffc7dbc2a0 in ?? ()
No symbol table info available.
#12 0x0000000000001000 in ?? ()
No symbol table info available.
#13 0x00007f47591b87bc in ?? ()
No symbol table info available.
#14 0x0000000000001000 in ?? ()
No symbol table info available.
#15 0x0000000002498e80 in ?? ()
No symbol table info available.
#16 0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (LWP 8037):
#0  0x00007f4759bb33dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f47591b86b4 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (LWP 8029):
#0  0x00007f4759afcf77 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 8029
        selftid = 8029
#1  0x00007f4759b005e8 in __GI_abort () at abort.c:90
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7fffc7dbee89, sa_sigaction = 0x7fffc7dbee89}, sa_mask = {__val = {139944425457508, 139944368130851, 274, 0, 139944424077265, 139944441101765, 140736546467599, 39286304, 4, 140736546462224, 0, 0, 0, 139944425456851, 139944249626624, 139944441101765}}, sa_flags = 1448725720, sa_restorer = 0x7f475659cfe6 <__PRETTY_FUNCTION__.14361>}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f4759af5d43 in __assert_fail_base (fmt=0x7f475ab33dc5 <Address 0x7f475ab33dc5 out of bounds>, assertion=assertion@entry=0x7f475659ccd8 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f475659cb23 "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7f475659cfe6 <__PRETTY_FUNCTION__.14361> "poll_for_event") at assert.c:92
        str = 0x2622270 ""
        total = 4096
#3  0x00007f4759af5df2 in __GI___assert_fail (assertion=assertion@entry=0x7f475659ccd8 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f475659cb23 "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7f475659cfe6 <__PRETTY_FUNCTION__.14361> "poll_for_event") at assert.c:101
No locals.
#4  0x00007f475652d289 in poll_for_event (dpy=dpy@entry=0x1f2cce0) at ../../src/xcb_io.c:271
        req = <optimized out>
        event = <optimized out>
        event_sequence = <optimized out>
        __PRETTY_FUNCTION__ = "poll_for_event"
#5  0x00007f475652d31e in poll_for_response (dpy=dpy@entry=0x1f2cce0) at ../../src/xcb_io.c:289
        response = 0x1
        error = 0x1f2cce0
        req = <optimized out>
        __PRETTY_FUNCTION__ = "poll_for_response"
#6  0x00007f475652d5fd in _XEventsQueued (dpy=dpy@entry=0x1f2cce0, mode=mode@entry=2) at ../../src/xcb_io.c:363
        response = <optimized out>
#7  0x00007f475651f73d in XPending (dpy=0x1f2cce0) at ../../src/Pending.c:55
        ret_val = <optimized out>
#8  0x00007f47577716c6 in gdk_check_xpending (display=0x1f38020) at /build/buildd/gtk+2.0-2.24.20/gdk/x11/gdkevents-x11.c:159
No locals.
#9  gdk_event_prepare (source=<optimized out>, timeout=<optimized out>) at /build/buildd/gtk+2.0-2.24.20/gdk/x11/gdkevents-x11.c:2361
        display = 0x1f38020
        retval = <optimized out>
#10 0x00007f47591b7d5d in ?? ()
No symbol table info available.
#11 0x00007fffc7dbdc28 in ?? ()
No symbol table info available.
#12 0x00007fffc7dbdc40 in ?? ()
No symbol table info available.
#13 0x00007fffc7dbdc24 in ?? ()
No symbol table info available.
#14 0x00007fffc7dbdca8 in ?? ()
No symbol table info available.
#15 0xffffffff01f41ae0 in ?? ()
No symbol table info available.
#16 0x0000000001f419f0 in ?? ()
No symbol table info available.
#17 0x0000000001f41ae0 in ?? ()
No symbol table info available.
#18 0x00007f4700000001 in ?? ()
No symbol table info available.
#19 0x0000000001e77940 in ?? ()
No symbol table info available.
#20 0x0000000001f419f0 in ?? ()
No symbol table info available.
#21 0x000000000249e4a0 in ?? ()
No symbol table info available.
#22 0x0000000001f41ae0 in ?? ()
No symbol table info available.
#23 0x00007f47584a9050 in PyGtkWarning () from /tmp/apport_sandbox_HyIdZc/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/_gtk.so
No symbol table info available.
#24 0x0000000002514090 in ?? ()
No symbol table info available.
#25 0x00007fffc7dbdcac in ?? ()
No symbol table info available.
#26 0x0000000000000001 in ?? ()
No symbol table info available.
#27 0x0000000000000003 in ?? ()
No symbol table info available.
#28 0x00007f47591b85d3 in ?? ()
No symbol table info available.
#29 0x0000000000000000 in ?? ()
No symbol table info available.