.
Thread 3 (LWP 26401):
#0  0x00007f0d5cc538dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f0d538e2b72 in poll (__timeout=-1, __nfds=1, __fds=0x7f0d4f06cdc0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
No locals.
#2  _xcb_conn_wait (c=c@entry=0x20dcab0, cond=cond@entry=0x20dcaf0, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:447
        ret = <optimized out>
        fd = {fd = 4, events = 1, revents = 0}
#3  0x00007f0d538e464f in xcb_wait_for_event (c=0x20dcab0) at ../../src/xcb_in.c:622
        ret = 0x0
#4  0x00007f0d51a84099 in QXcbEventReader::run (this=0x20ead80) at qxcbconnection.cpp:1105
        event = <optimized out>
#5  0x00007f0d59371b0e in QThreadPrivate::start (arg=0x20ead80) at thread/qthread_unix.cpp:337
        __clframe = {__cancel_routine = 0x7f0d59370c00 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x20ead80, __do_it = 1, __cancel_type = <optimized out>}
        thr = 0x20ead80
        data = 0x20eb0e0
        objectName = {static null = {<No data fields>}, d = 0x7f0d59686f20 <QArrayData::shared_null>}
#6  0x00007f0d5cf296aa in start_thread (arg=0x7f0d4f06d700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f0d4f06d700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139695137150720, 7268376012787649844, 0, 140729353689839, 139695137151424, 34517072, -7294446608707646156, -7294480524755104460}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f0d5cc5eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 2 (LWP 26407):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f0d3ed234fb in cnd_wait (mtx=0x22e9848, cond=0x22e9870) at ../../../../../../../include/c11/threads_posix.h:154
No locals.
#2  pipe_semaphore_wait (sema=0x22e9848) at ../../../../../../../src/gallium/auxiliary/os/os_thread.h:248
No locals.
#3  radeon_drm_cs_emit_ioctl (param=param@entry=0x22e9530) at ../../../../../../../src/gallium/winsys/radeon/drm/radeon_drm_winsys.c:594
        ws = 0x22e9530
        cs = <optimized out>
        i = <optimized out>
#4  0x00007f0d3ed22c87 in impl_thrd_routine (p=<optimized out>) at ../../../../../../../include/c11/threads_posix.h:87
        pack = {func = 0x7f0d3ed233c0 <radeon_drm_cs_emit_ioctl>, arg = 0x22e9530}
#5  0x00007f0d5cf296aa in start_thread (arg=0x7f0d3bce6700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f0d3bce6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139694814684928, 7268376012787649844, 0, 140729353687279, 139694814685632, 139694865781875, -7294702310122484428, -7294480524755104460}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f0d5cc5eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 1 (LWP 26400):
#0  0x0000000000546914 in visit_decref () at ../Modules/gcmodule.c:373
No locals.
#1  0x0000000000564415 in type_traverse.lto_priv () at ../Objects/typeobject.c:3173
        vret = <optimized out>
#2  0x000000000054ecf5 in subtract_refs () at ../Modules/gcmodule.c:398
        traverse = <optimized out>
        gc = 0x1f48650
        containers = 0x9e4c80 <generations.lto_priv+64>
#3  collect () at ../Modules/gcmodule.c:969
        i = <optimized out>
        m = 0
        n = 0
        young = 0x9e4c80 <generations.lto_priv+64>
        old = 0x9e4c80 <generations.lto_priv+64>
        unreachable = {gc = {gc_next = 0x0, gc_prev = 0x7f0d00000000, gc_refs = 139695374255304}, dummy = 0}
        finalizers = {gc = {gc_next = 0x5dc990 <signal_handler>, gc_prev = 0x0, gc_refs = 139695374034888}, dummy = 3.0367488007496381e-317}
        gc = <optimized out>
        t1 = 0
        stats = <optimized out>
#4  0x00000000005ed28b in collect_with_callback () at ../Modules/gcmodule.c:1140
        result = <optimized out>
        collected = 67108864
        uncollectable = 139695370743056
#5  0x00000000005ed380 in PyGC_Collect () at ../Modules/gcmodule.c:1616
        n = 12456640
#6  0x00000000005e7671 in Py_Finalize () at ../Python/pythonrun.c:607
        interp = 0x1baa3c0
        tstate = <optimized out>
#7  0x00000000005e7768 in Py_Exit (sts=sts@entry=1) at ../Python/pythonrun.c:2713
No locals.
#8  0x0000000000539d80 in handle_system_exit () at ../Python/pythonrun.c:1812
        exception = <type at remote 0x95c540>
        value = True
        tb = [<unknown at remote 0x1cc9000>]
        exitcode = 1
#9  0x00000000005e779d in PyErr_PrintEx () at ../Python/pythonrun.c:1822
Python Exception <class 'RuntimeError'> Type does not have a target.: 
        exception = 
        v = 0x0
        tb = <module at remote 0x7f0d5d29b548>
        hook = <optimized out>
#10 0x00000000005e79c6 in PyErr_Print () at ../Python/pythonrun.c:1718
No locals.
#11 PyRun_SimpleFileExFlags () at ../Python/pythonrun.c:1611
Python Exception <class 'RuntimeError'> Type does not have a target.: 
        d = 
        ret = -1
        len = 4294967295
#12 0x00000000005fb69d in run_file (p_cf=<optimized out>, filename=<optimized out>, fp=<optimized out>) at ../Modules/main.c:319
        run = 12456640
#13 Py_Main () at ../Modules/main.c:751
        sts = 1561920176
        command = 0x0
        filename = 0x1baa280 L"/usr/share/apport/apport-kde"
        module = 0x0
        help = 1562777904
        saw_unbuffered_flag = 29008512
        cf = {cf_flags = 0}
#14 0x00000000004c2e7f in main () at ../Modules/python.c:69
        argv_copy = 0x1ba9010
        argv_copy2 = 0x1ba9030
        i = 2
        res = <optimized out>
        oldloc = 0x1ba9050 "en_US.UTF-8"
#15 0x00007f0d5cb78a40 in __libc_start_main (main=0x4c2da0 <main>, argc=2, argv=0x7ffe1b22e6d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe1b22e6c8) at libc-start.c:289
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 7268376344164928820, 6000016, 140729353692880, 0, 0, -7268172920756794060, -7294481099628114636}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x5ff3f0 <__libc_csu_init>, 0x7ffe1b22e6d8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 6288368}}}
        not_first_call = <optimized out>
#16 0x00000000005b8db9 in _start ()
No symbol table info available.