OBS crash backtrack

#0  0x00007ffff4dfebb9 in __GI_raise (sig=sig@entry=6)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007ffff4e01fc8 in __GI_abort () at abort.c:89
#2  0x00007ffff4df7a76 in __assert_fail_base (
    fmt=0x7ffff4f49370 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
    assertion=assertion@entry=0x7ffff2bde615 "!c->out.queue_len",
    file=file@entry=0x7ffff2bde600 "../../src/xcb_conn.c",
    line=line@entry=186, function=function@entry=0x7ffff2bde630 "write_vec")
    at assert.c:92
#3  0x00007ffff4df7b22 in __GI___assert_fail (
    assertion=0x7ffff2bde615 "!c->out.queue_len",
    file=0x7ffff2bde600 "../../src/xcb_conn.c", line=186,
    function=0x7ffff2bde630 "write_vec") at assert.c:101
#4  0x00007ffff2bd2e5b in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#5  0x00007ffff2bd3191 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#6  0x00007ffff2bd38a7 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#7  0x00007ffff2bd39c8 in xcb_take_socket ()
   from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#8  0x00007ffff6d01a38 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#9  0x00007ffff6d02259 in _XFlush () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#10 0x00007ffff6d04c75 in _XGetRequest ()
   from /usr/lib/x86_64-linux-gnu/libX11.so.6
#11 0x00007ffff6cfe0bb in XSync () from /usr/lib/x86_64-linux-gnu/libX11.so.6