.
Thread 3 (LWP 30373):
#0  __exit_thread () at ../sysdeps/unix/sysv/linux/exit-thread.h:36
        resultvar = <optimized out>
        __arg1 = 0
        _a1 = 0
#1  start_thread (arg=<optimized out>) at pthread_create.c:607
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139790525847296, 5803000427944954667, 140731776380254, 140731776380255, 0, 139790525845248, -5850334926924592341, -5850316910582478037}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#2  0x00007f238d03cfaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 2 (Thread 0x7f238a25bc80 (LWP 30032)):
#0  QThreadStorage<QSharedNetworkSessionManager*>::~QThreadStorage (this=0x7f238db85954 <tls>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qthreadstorage.h:139
No locals.
#1  0x00007f238cf66a37 in __cxa_finalize (d=0x7f238db85600) at cxa_finalize.c:83
        check = 1720
        cxafn = <optimized out>
        cxaarg = <optimized out>
        f = 0x7f238d105c50 <initial+528>
        funcs = 0x7f238d105a40 <initial>
#2  0x00007f238da1e523 in __do_global_dtors_aux () at ../../include/QtCore/../../src/corelib/thread/qthreadstorage.h:138
No symbol table info available.
#3  0x00007ffeab8a4080 in ?? ()
No symbol table info available.
#4  0x00007f238e7acc66 in _dl_fini () at dl-fini.c:138
        do_audit = <optimized out>
        __PRETTY_FUNCTION__ = "_dl_fini"
Backtrace stopped: frame did not save the PC
.
Thread 1 (Thread 0x7f2388740700 (LWP 30034)):
#0  0x00005654582f2a00 in ?? ()
No symbol table info available.
#1  0x000056545734991c in SingleApplicationPrivate::terminate (signum=11) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:116
No locals.
#2  <signal handler called>
No locals.
#3  0x00005654582f2a00 in ?? ()
No symbol table info available.
#4  0x000056545734991c in SingleApplicationPrivate::terminate (signum=1) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:116
No locals.
#5  <signal handler called>
No locals.
#6  0x00007f238d030ba9 in __GI___poll (fds=fds@entry=0x7f238873fcb8, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551612
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#7  0x00007f238a6b3917 in poll (__timeout=-1, __nfds=1, __fds=0x7f238873fcb8) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
No locals.
#8  _xcb_conn_wait (c=c@entry=0x56545829d420, cond=cond@entry=0x56545829d460, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:479
        ret = <optimized out>
        fd = {fd = 3, events = 1, revents = 0}
#9  0x00007f238a6b553a in xcb_wait_for_event (c=0x56545829d420) at ../../src/xcb_in.c:697
        ret = <optimized out>
#10 0x00007f2389904519 in QXcbEventReader::run (this=0x56545829cdc0) at qxcbconnection.h:409
        event = <optimized out>
#11 0x00007f238d517c77 in QThreadPrivate::start (arg=0x56545829cdc0) at thread/qthread_unix.cpp:367
        thr = 0x56545829cdc0
        data = <optimized out>
        eventDispatcher = <optimized out>
        __clframe = {__cancel_routine = 0x7f238d5171a0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x56545829cdc0, __do_it = 1, __cancel_type = <optimized out>}
#12 0x00007f238cf07182 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139790589888256, 5803000427944954667, 140731776386190, 140731776386191, 140731776386400, 139790589886208, -5850326809973273813, -5850316910582478037}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#13 0x00007f238d03cfaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.