.
Thread 3 (Thread 0x7f474f23e700 (LWP 8030)):
#0  0x00007f4759bb33dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f47591b86b4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f47591b87bc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f47591b8809 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f47591dd345 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f475a7b8f6e in start_thread (arg=0x7f474f23e700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f474f23e700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139944247158528, -7542021379622923154, 0, 139944441876576, 140736546456224, 4096, 7627907839592010862, 7627953678149915758}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f4759bbfe2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 2 (Thread 0x7f474e153700 (LWP 8037)):
#0  0x00007f4759bb33dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f47591b86b4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f47591b8b1a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f475747f956 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f47591dd345 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f475a7b8f6e in start_thread (arg=0x7f474e153700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f474e153700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139944229418752, -7542021379622923154, 0, 139944441876576, 139944238763168, 4096, 7627909926409245806, 7627953678149915758}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f4759bbfe2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 1 (Thread 0x7f475abc7740 (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}
        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 "poll_for_event") at assert.c:92
        str = 0x2622270 ""
        total = 4096
#3  0x00007f4759af5df2 in __GI___assert_fail (assertion=0x7f475659ccd8 "!xcb_xlib_threads_sequence_lost", file=0x7f475659cb23 "../../src/xcb_io.c", line=274, function=0x7f475659cfe6 "poll_for_event") at assert.c:101
No locals.
#4  0x00007f475652d289 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#5  0x00007f475652d31e in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#6  0x00007f475652d5fd in _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#7  0x00007f475651f73d in XPending () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#8  0x00007f47577716c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
No symbol table info available.
#9  0x00007f47591b7d5d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#10 0x00007f47591b85d3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#11 0x00007f47591b8b1a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#12 0x00007f4757af8277 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#13 0x00007f47581b0334 in ?? () from /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/_gtk.so
No symbol table info available.
#14 0x00000000004feeee in PyEval_EvalFrameEx ()
No symbol table info available.
#15 0x000000000056c414 in PyEval_EvalCodeEx ()
No symbol table info available.
#16 0x00000000005ba3b2 in PyEval_EvalCode ()
No symbol table info available.
#17 0x00000000005abe1b in ?? ()
No symbol table info available.
#18 0x000000000045270b in PyRun_FileExFlags ()
No symbol table info available.
#19 0x0000000000452f05 in PyRun_SimpleFileExFlags ()
No symbol table info available.
#20 0x0000000000453b6a in Py_Main ()
No symbol table info available.
#21 0x00007f4759ae7de5 in __libc_start_main (main=0x453c28 <main>, argc=2, ubp_av=0x7fffc7dbe288, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffc7dbe278) at libc-start.c:260
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -7542021379622923154, 5744344, 140736546464384, 0, 0, 7542073847806989422, 7627946439432639598}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x5bb4e0 <__libc_csu_init>, 0x7fffc7dbe288}, data = {prev = 0x0, cleanup = 0x0, canceltype = 6010080}}}
        not_first_call = <optimized out>
#22 0x000000000057a701 in _start ()
No symbol table info available.