(gdb) thread apply all bt

Thread 10 (Thread 0x7fffbe7db700 (LWP 4908)):
#0  0x00007ffff790318d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff2caa1e5 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff2caa612 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#3  0x00007fffbfd6744d in ?? () from /usr/lib/libgio-2.0.so.0
#4  0x00007ffff2cd3b2c in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007ffff5632464 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007ffff790c12d in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7fffbefdc700 (LWP 4907)):
#0  0x00007ffff790318d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff2caa1e5 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff2caa322 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff2caa381 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007ffff2cd3b2c in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007ffff5632464 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007ffff790c12d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffff7e44800 (LWP 4895)):
#0  0x00007ffff563803f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff5c780eb in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007ffff5c7108b in QSemaphore::acquire(int) () from /usr/lib/libQt5Core.so.5
#3  0x00007ffff5e76fff in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff5e7772f in QObject::destroyed(QObject*) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff5e7e6e5 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#6  0x00007fffb3bdab09 in KAuth::DBusHelperProxy::~DBusHelperProxy (this=0x97f350, __in_chrg=<optimized out>) at /chakra/core/kauth/src/kauth-5.19.0/src/backends/dbus/DBusHelperProxy.cpp:55
#7  0x00007ffff5e3fff9 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007ffff5e44521 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007ffff78592ef in __cxa_finalize () from /usr/lib/libc.so.6
#10 0x00007ffff5c48583 in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007fffffffe230 in ?? ()
#12 0x00007ffff7dea867 in _dl_fini () from /lib64/ld-linux-x86-64.so.2