Application: kontact (5.13.2 (19.12.2))

Qt Version: 5.14.1
Frameworks Version: 5.67.0
Operating System: Linux 4.12.14-lp151.28.36-default x86_64
Windowing system: X11
Distribution: "openSUSE Leap 15.1"

-- Information about the crash:
I have a lot of fonts installed and while I was scrolling to select a courier font it crashed. I just repeated this a second time but instead of using my mouse wheel to scroll I used the bar on the side so I could quickly select the font. This time it did not crash.

-- Backtrace:
Application: Kontact (kontact), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
29	  return SYSCALL_CANCEL (poll, fds, nfds, timeout);
[Current thread is 1 (Thread 0x7f9011702980 (LWP 27225))]

Thread 21 (Thread 0x7f8fbbfff700 (LWP 126638)):
#0  0x00007f9009c34bdb in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f8fbbffe940, expected=0, futex_word=0x7f8fbbffeb08) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f9009c34bdb in __pthread_cond_wait_common (abstime=0x7f8fbbffe9e0, mutex=0x7f8fbbffeab8, cond=0x7f8fbbffeae0) at pthread_cond_wait.c:533
#2  0x00007f9009c34bdb in __pthread_cond_timedwait (cond=0x7f8fbbffeae0, mutex=0x7f8fbbffeab8, abstime=0x7f8fbbffe9e0) at pthread_cond_wait.c:667
#3  0x00007f8ffe330ab6 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007f8ffe331448 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:233
#5  0x00007f8ffe3315c2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:162
#6  0x00007f8ffe2ecda1 in base::internal::WorkerThread::Delegate::WaitForWork(base::WaitableEvent*) () at ./../../3rdparty/chromium/base/task/thread_pool/worker_thread.cc:35
#7  0x00007f8ffe2f1379 in base::internal::WorkerThread::RunWorker() () at ./../../3rdparty/chromium/base/task/thread_pool/worker_thread.cc:317
#8  0x00007f8ffe2f1674 in base::internal::WorkerThread::RunPooledWorker() () at ./../../3rdparty/chromium/base/task/thread_pool/worker_thread.cc:223
#9  0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f9009c2e569 in start_thread (arg=0x7f8fbbfff700) at pthread_create.c:465
#11 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f8f3ffff700 (LWP 30707)):
#0  0x00007f900df0519b in __GI___poll (fds=0x7f8f38004600, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f900785c1a9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8f38004600, timeout=<optimized out>, context=0x7f8f38000bd0) at gmain.c:4169
#2  0x00007f900785c1a9 in g_main_context_iterate (context=context@entry=0x7f8f38000bd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007f900785c2bc in g_main_context_iteration (context=0x7f8f38000bd0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007f900ea807eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8f38000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f900ea1fd4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8f3fffec30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f900e830657 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f900e831b2c in QThreadPrivate::start(void*) (arg=0x55f23baef7c0) at thread/qthread_unix.cpp:342
#8  0x00007f9009c2e569 in start_thread (arg=0x7f8f3ffff700) at pthread_create.c:465
#9  0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f8f473f6700 (LWP 30292)):
#0  0x00007f9009c348ad in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f8f473f5b18) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9009c348ad in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f8f473f5ac8, cond=0x7f8f473f5af0) at pthread_cond_wait.c:502
#2  0x00007f9009c348ad in __pthread_cond_wait (cond=0x7f8f473f5af0, mutex=0x7f8f473f5ac8) at pthread_cond_wait.c:655
#3  0x00007f8ffe3309ca in base::ConditionVariable::Wait() () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007f8ffe33146c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:235
#5  0x00007f8ffe33157f in base::WaitableEvent::Wait() () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007f8ffe2ecdb8 in base::internal::WorkerThread::Delegate::WaitForWork(base::WaitableEvent*) () at ./../../3rdparty/chromium/base/task/thread_pool/worker_thread.cc:33
#7  0x00007f8ffe2f1379 in base::internal::WorkerThread::RunWorker() () at ./../../3rdparty/chromium/base/task/thread_pool/worker_thread.cc:317
#8  0x00007f8ffe2f16b4 in base::internal::WorkerThread::RunSharedWorker() () at ./../../3rdparty/chromium/base/task/thread_pool/worker_thread.cc:235
#9  0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f9009c2e569 in start_thread (arg=0x7f8f473f6700) at pthread_create.c:465
#11 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f8f55606700 (LWP 30134)):
#0  0x00007f900df0a269 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f900e834084 in QtLinuxFutex::_q_futex(int*, int, int, unsigned long long, int*, int) (val3=0, addr2=0x0, val2=0, val=<optimized out>, op=0, addr=<optimized out>) at thread/qfutex_p.h:116
#2  0x00007f900e834084 in QtLinuxFutex::futexWait<QBasicAtomicInteger<unsigned int> >(QBasicAtomicInteger<unsigned int>&, QBasicAtomicInteger<unsigned int>::Type) (expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:135
#3  0x00007f900e834084 in futexSemaphoreTryAcquire_loop<false>(QBasicAtomicInteger<unsigned long long>&, unsigned long long, unsigned long long, int) (timeout=-1, nn=8589934593, curValue=<optimized out>, u=...) at thread/qsemaphore.cpp:219
#4  0x00007f900e834084 in futexSemaphoreTryAcquire<false>(QBasicAtomicInteger<unsigned long long>&, int, int) (timeout=-1, n=<optimized out>, u=...) at thread/qsemaphore.cpp:262
#5  0x00007f900e834084 in QSemaphore::acquire(int) (this=0x7f900a6215a0, n=<optimized out>) at thread/qsemaphore.cpp:326
#6  0x00007f900a35d204 in  () at /usr/lib64/libQt5Network.so.5
#7  0x00007f900e831b2c in QThreadPrivate::start(void*) (arg=0x7f900a621580) at thread/qthread_unix.cpp:342
#8  0x00007f9009c2e569 in start_thread (arg=0x7f8f55606700) at pthread_create.c:465
#9  0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f8f55e07700 (LWP 30133)):
#0  0x00007f900df0519b in __GI___poll (fds=0x7f8f50004e30, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f900785c1a9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8f50004e30, timeout=<optimized out>, context=0x7f8f50000bd0) at gmain.c:4169
#2  0x00007f900785c1a9 in g_main_context_iterate (context=context@entry=0x7f8f50000bd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007f900785c2bc in g_main_context_iteration (context=0x7f8f50000bd0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007f900ea807eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8f50000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f900ea1fd4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8f55e06c30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f900e830657 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f900e831b2c in QThreadPrivate::start(void*) (arg=0x55f2377fcd10) at thread/qthread_unix.cpp:342
#8  0x00007f9009c2e569 in start_thread (arg=0x7f8f55e07700) at pthread_create.c:465
#9  0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f8f64fbf700 (LWP 29874)):
#0  0x00007f900df0519b in __GI___poll (fds=0x7f8f60004a30, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f900785c1a9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8f60004a30, timeout=<optimized out>, context=0x7f8f60000bd0) at gmain.c:4169
#2  0x00007f900785c1a9 in g_main_context_iterate (context=context@entry=0x7f8f60000bd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007f900785c2bc in g_main_context_iteration (context=0x7f8f60000bd0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007f900ea807eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8f60000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f900ea1fd4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8f64fbec30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f900e830657 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f900e831b2c in QThreadPrivate::start(void*) (arg=0x55f2365ba240) at thread/qthread_unix.cpp:342
#8  0x00007f9009c2e569 in start_thread (arg=0x7f8f64fbf700) at pthread_create.c:465
#9  0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f8f76c42700 (LWP 27512)):
#0  0x00007f900df0519b in __GI___poll (fds=0x7f8f6c021850, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f900785c1a9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8f6c021850, timeout=<optimized out>, context=0x7f8f6c000bd0) at gmain.c:4169
#2  0x00007f900785c1a9 in g_main_context_iterate (context=context@entry=0x7f8f6c000bd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007f900785c2bc in g_main_context_iteration (context=0x7f8f6c000bd0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007f900ea807eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8f6c000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f900ea1fd4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8f76c41c30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f900e830657 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f900e831b2c in QThreadPrivate::start(void*) (arg=0x55f2366142f0) at thread/qthread_unix.cpp:342
#8  0x00007f9009c2e569 in start_thread (arg=0x7f8f76c42700) at pthread_create.c:465
#9  0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f8f77443700 (LWP 27500)):
#0  0x00007f900df0519b in __GI___poll (fds=0x7f8f68004e30, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f900785c1a9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8f68004e30, timeout=<optimized out>, context=0x7f8f68000bd0) at gmain.c:4169
#2  0x00007f900785c1a9 in g_main_context_iterate (context=context@entry=0x7f8f68000bd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007f900785c2bc in g_main_context_iteration (context=0x7f8f68000bd0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007f900ea807eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8f68000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f900ea1fd4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8f77442c30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f900e830657 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f900e831b2c in QThreadPrivate::start(void*) (arg=0x55f2367a4930) at thread/qthread_unix.cpp:342
#8  0x00007f9009c2e569 in start_thread (arg=0x7f8f77443700) at pthread_create.c:465
#9  0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f8f782d0700 (LWP 27464)):
#0  0x00007f900df0519b in __GI___poll (fds=0x7f8f70004a30, nfds=1, timeout=9478) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f900785c1a9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8f70004a30, timeout=<optimized out>, context=0x7f8f70000bd0) at gmain.c:4169
#2  0x00007f900785c1a9 in g_main_context_iterate (context=context@entry=0x7f8f70000bd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007f900785c2bc in g_main_context_iteration (context=0x7f8f70000bd0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007f900ea807eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8f70000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f900ea1fd4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8f782cfc30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f900e830657 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f900e831b2c in QThreadPrivate::start(void*) (arg=0x55f2365c5980) at thread/qthread_unix.cpp:342
#8  0x00007f9009c2e569 in start_thread (arg=0x7f8f782d0700) at pthread_create.c:465
#9  0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f8fb2fa1700 (LWP 27395)):
#0  0x00007f9009c348ad in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f8fb2fa0b18) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9009c348ad in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f8fb2fa0ac8, cond=0x7f8fb2fa0af0) at pthread_cond_wait.c:502
#2  0x00007f9009c348ad in __pthread_cond_wait (cond=0x7f8fb2fa0af0, mutex=0x7f8fb2fa0ac8) at pthread_cond_wait.c:655
#3  0x00007f8ffe3309ca in base::ConditionVariable::Wait() () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007f8ffe33146c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:235
#5  0x00007f8ffe33157f in base::WaitableEvent::Wait() () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007f8ffe2ecdb8 in base::internal::WorkerThread::Delegate::WaitForWork(base::WaitableEvent*) () at ./../../3rdparty/chromium/base/task/thread_pool/worker_thread.cc:33
#7  0x00007f8ffe2f1379 in base::internal::WorkerThread::RunWorker() () at ./../../3rdparty/chromium/base/task/thread_pool/worker_thread.cc:317
#8  0x00007f8ffe2f16f4 in base::internal::WorkerThread::RunDedicatedWorker() () at ./../../3rdparty/chromium/base/task/thread_pool/worker_thread.cc:247
#9  0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f9009c2e569 in start_thread (arg=0x7f8fb2fa1700) at pthread_create.c:465
#11 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f8fb37a2700 (LWP 27392)):
#0  0x00007f8ff644ea9f in evutil_snprintf (buf=<optimized out>, buflen=<optimized out>, format=format@entry=0x7f8ff646d14d ": %s") at evutil.c:1833
#1  0x00007f8ff6451fac in event_logv_ (severity=severity@entry=2, errstr=0x7f900df95316 "Bad file descriptor", fmt=fmt@entry=0x7f8ff6469e79 "epoll_wait", ap=ap@entry=0x7f8fb37a18b0) at log.c:212
#2  0x00007f8ff6452194 in event_warn (fmt=fmt@entry=0x7f8ff6469e79 "epoll_wait") at log.c:127
#3  0x00007f8ff6453abc in epoll_dispatch (base=0x7f8f88001d40, tv=<optimized out>) at epoll.c:468
#4  0x00007f8ff6449764 in event_base_loop (base=0x7f8f88001d40, flags=1) at event.c:1947
#5  0x00007f8ffe3384d6 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at ./../../3rdparty/chromium/base/message_loop/message_pump_libevent.cc:242
#6  0x00007f8ffe2dbf69 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:463
#7  0x00007f8ffe2bb848 in base::RunLoop::RunWithTimeout(base::TimeDelta) () at ./../../3rdparty/chromium/base/run_loop.cc:157
#8  0x00007f8ffe2fb6c6 in base::Thread::Run(base::RunLoop*) () at ./../../3rdparty/chromium/base/threading/thread.cc:242
#9  0x00007f8ffe2fb6c6 in base::Thread::ThreadMain() () at ./../../3rdparty/chromium/base/threading/thread.cc:312
#10 0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#11 0x00007f9009c2e569 in start_thread (arg=0x7f8fb37a2700) at pthread_create.c:465
#12 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f8fb8ff9700 (LWP 27342)):
#0  0x00007f9009c348ad in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f8fb8ff8a38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9009c348ad in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f8fb8ff89e8, cond=0x7f8fb8ff8a10) at pthread_cond_wait.c:502
#2  0x00007f9009c348ad in __pthread_cond_wait (cond=0x7f8fb8ff8a10, mutex=0x7f8fb8ff89e8) at pthread_cond_wait.c:655
#3  0x00007f8ffe3309ca in base::ConditionVariable::Wait() () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007f8ffe33146c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:235
#5  0x00007f8ffe33157f in base::WaitableEvent::Wait() () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007f8ffe29b778 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at ./../../3rdparty/chromium/base/message_loop/message_pump_default.cc:55
#7  0x00007f8ffe2dbf69 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:463
#8  0x00007f8ffe2bb848 in base::RunLoop::RunWithTimeout(base::TimeDelta) () at ./../../3rdparty/chromium/base/run_loop.cc:157
#9  0x00007f8ffe2fb6c6 in base::Thread::Run(base::RunLoop*) () at ./../../3rdparty/chromium/base/threading/thread.cc:242
#10 0x00007f8ffe2fb6c6 in base::Thread::ThreadMain() () at ./../../3rdparty/chromium/base/threading/thread.cc:312
#11 0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#12 0x00007f9009c2e569 in start_thread (arg=0x7f8fb8ff9700) at pthread_create.c:465
#13 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f8fb97fa700 (LWP 27335)):
#0  0x00007f900df1cb5c in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f900df1e8b4 in ___fprintf_chk (fp=0x7f900e1cd870 <_IO_stdfile_2_lock>, flag=flag@entry=1, format=format@entry=0x7f8ff6469d08 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f8ff6451ffd in fprintf (__fmt=0x7f8ff6469d08 "[%s] %s\n", __stream=<optimized out>) at /usr/include/bits/stdio2.h:97
#3  0x00007f8ff6451ffd in event_log (msg=0x7f8fb97f9480 "epoll_wait: Bad file descriptor", severity=2) at log.c:251
#4  0x00007f8ff6451ffd in event_logv_ (severity=severity@entry=2, errstr=0x7f900df95316 "Bad file descriptor", fmt=fmt@entry=0x7f8ff6469e79 "epoll_wait", ap=ap@entry=0x7f8fb97f98b0) at log.c:216
#5  0x00007f8ff6452194 in event_warn (fmt=fmt@entry=0x7f8ff6469e79 "epoll_wait") at log.c:127
#6  0x00007f8ff6453abc in epoll_dispatch (base=0x7f8f90001d40, tv=<optimized out>) at epoll.c:468
#7  0x00007f8ff6449764 in event_base_loop (base=0x7f8f90001d40, flags=2) at event.c:1947
#8  0x00007f8ffe3383fb in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at ./../../3rdparty/chromium/base/message_loop/message_pump_libevent.cc:213
#9  0x00007f8ffe2dbf69 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:463
#10 0x00007f8ffe2bb848 in base::RunLoop::RunWithTimeout(base::TimeDelta) () at ./../../3rdparty/chromium/base/run_loop.cc:157
#11 0x00007f8ffe2fb6c6 in base::Thread::Run(base::RunLoop*) () at ./../../3rdparty/chromium/base/threading/thread.cc:242
#12 0x00007f8ffe2fb6c6 in base::Thread::ThreadMain() () at ./../../3rdparty/chromium/base/threading/thread.cc:312
#13 0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#14 0x00007f9009c2e569 in start_thread (arg=0x7f8fb97fa700) at pthread_create.c:465
#15 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f8fb9ffb700 (LWP 27334)):
#0  0x00007f9009c348ad in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f8fb9ffaa38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9009c348ad in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f8fb9ffa9e8, cond=0x7f8fb9ffaa10) at pthread_cond_wait.c:502
#2  0x00007f9009c348ad in __pthread_cond_wait (cond=0x7f8fb9ffaa10, mutex=0x7f8fb9ffa9e8) at pthread_cond_wait.c:655
#3  0x00007f8ffe3309ca in base::ConditionVariable::Wait() () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007f8ffe33146c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:235
#5  0x00007f8ffe33157f in base::WaitableEvent::Wait() () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007f8ffe29b778 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at ./../../3rdparty/chromium/base/message_loop/message_pump_default.cc:55
#7  0x00007f8ffe2dbf69 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:463
#8  0x00007f8ffe2bb848 in base::RunLoop::RunWithTimeout(base::TimeDelta) () at ./../../3rdparty/chromium/base/run_loop.cc:157
#9  0x00007f8ffe2fb6c6 in base::Thread::Run(base::RunLoop*) () at ./../../3rdparty/chromium/base/threading/thread.cc:242
#10 0x00007f8ffe2fb6c6 in base::Thread::ThreadMain() () at ./../../3rdparty/chromium/base/threading/thread.cc:312
#11 0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#12 0x00007f9009c2e569 in start_thread (arg=0x7f8fb9ffb700) at pthread_create.c:465
#13 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f8fba7fc700 (LWP 27333)):
#0  0x00007f9009c34bdb in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f8fba7fb860, expected=0, futex_word=0x7f8fba7fba28) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f9009c34bdb in __pthread_cond_wait_common (abstime=0x7f8fba7fb900, mutex=0x7f8fba7fb9d8, cond=0x7f8fba7fba00) at pthread_cond_wait.c:533
#2  0x00007f9009c34bdb in __pthread_cond_timedwait (cond=0x7f8fba7fba00, mutex=0x7f8fba7fb9d8, abstime=0x7f8fba7fb900) at pthread_cond_wait.c:667
#3  0x00007f8ffe330ab6 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007f8ffe331448 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:233
#5  0x00007f8ffe3315c2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:162
#6  0x00007f8ffe29b74b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at ./../../3rdparty/chromium/base/message_loop/message_pump_default.cc:57
#7  0x00007f8ffe2dbf69 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:463
#8  0x00007f8ffe2bb848 in base::RunLoop::RunWithTimeout(base::TimeDelta) () at ./../../3rdparty/chromium/base/run_loop.cc:157
#9  0x00007f8ffe2fb6c6 in base::Thread::Run(base::RunLoop*) () at ./../../3rdparty/chromium/base/threading/thread.cc:242
#10 0x00007f8ffe2fb6c6 in base::Thread::ThreadMain() () at ./../../3rdparty/chromium/base/threading/thread.cc:312
#11 0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#12 0x00007f9009c2e569 in start_thread (arg=0x7f8fba7fc700) at pthread_create.c:465
#13 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f8fbaffd700 (LWP 27332)):
#0  0x00007f9009c348ad in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55f23669f05c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9009c348ad in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f23669ef98, cond=0x55f23669f030) at pthread_cond_wait.c:502
#2  0x00007f9009c348ad in __pthread_cond_wait (cond=0x55f23669f030, mutex=0x55f23669ef98) at pthread_cond_wait.c:655
#3  0x00007f8ffe3309ca in base::ConditionVariable::Wait() () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007f8fff05f978 in cc::SingleThreadTaskGraphRunner::Run() () at ./../../3rdparty/chromium/cc/raster/single_thread_task_graph_runner.cc:123
#5  0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#6  0x00007f9009c2e569 in start_thread (arg=0x7f8fbaffd700) at pthread_create.c:465
#7  0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f8fcaffd700 (LWP 27324)):
#0  0x00007f900df1cb5c in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f900df1e8b4 in ___fprintf_chk (fp=0x7f900e1cd870 <_IO_stdfile_2_lock>, flag=flag@entry=1, format=format@entry=0x7f8ff6469d08 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f8ff6451ffd in fprintf (__fmt=0x7f8ff6469d08 "[%s] %s\n", __stream=<optimized out>) at /usr/include/bits/stdio2.h:97
#3  0x00007f8ff6451ffd in event_log (msg=0x7f8fcaffc460 "epoll_wait: Bad file descriptor", severity=2) at log.c:251
#4  0x00007f8ff6451ffd in event_logv_ (severity=severity@entry=2, errstr=0x7f900df95316 "Bad file descriptor", fmt=fmt@entry=0x7f8ff6469e79 "epoll_wait", ap=ap@entry=0x7f8fcaffc890) at log.c:216
#5  0x00007f8ff6452194 in event_warn (fmt=fmt@entry=0x7f8ff6469e79 "epoll_wait") at log.c:127
#6  0x00007f8ff6453abc in epoll_dispatch (base=0x7f8fc0001d00, tv=<optimized out>) at epoll.c:468
#7  0x00007f8ff6449764 in event_base_loop (base=0x7f8fc0001d00, flags=2) at event.c:1947
#8  0x00007f8ffe3383fb in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at ./../../3rdparty/chromium/base/message_loop/message_pump_libevent.cc:213
#9  0x00007f8ffe2dbf69 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:463
#10 0x00007f8ffe2bb848 in base::RunLoop::RunWithTimeout(base::TimeDelta) () at ./../../3rdparty/chromium/base/run_loop.cc:157
#11 0x00007f90010a7844 in content::BrowserProcessSubThread::IOThreadRun(base::RunLoop*) () at ../../3rdparty/chromium/content/browser/browser_process_sub_thread.cc:158
#12 0x00007f8ffe2fb7c8 in base::Thread::ThreadMain() () at ./../../3rdparty/chromium/base/threading/thread.cc:312
#13 0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#14 0x00007f9009c2e569 in start_thread (arg=0x7f8fcaffd700) at pthread_create.c:465
#15 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f8fcbfff700 (LWP 27322)):
#0  0x00007f900df1cb5c in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f900df1e8b4 in ___fprintf_chk (fp=0x7f900e1cd870 <_IO_stdfile_2_lock>, flag=flag@entry=1, format=format@entry=0x7f8ff6469d08 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f8ff6451ffd in fprintf (__fmt=0x7f8ff6469d08 "[%s] %s\n", __stream=<optimized out>) at /usr/include/bits/stdio2.h:97
#3  0x00007f8ff6451ffd in event_log (msg=0x7f8fcbffe460 "epoll_wait: Bad file descriptor", severity=2) at log.c:251
#4  0x00007f8ff6451ffd in event_logv_ (severity=severity@entry=2, errstr=0x7f900df95316 "Bad file descriptor", fmt=fmt@entry=0x7f8ff6469e79 "epoll_wait", ap=ap@entry=0x7f8fcbffe890) at log.c:216
#5  0x00007f8ff6452194 in event_warn (fmt=fmt@entry=0x7f8ff6469e79 "epoll_wait") at log.c:127
#6  0x00007f8ff6453abc in epoll_dispatch (base=0x7f8fc4001d40, tv=<optimized out>) at epoll.c:468
#7  0x00007f8ff6449764 in event_base_loop (base=0x7f8fc4001d40, flags=2) at event.c:1947
#8  0x00007f8ffe3383fb in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at ./../../3rdparty/chromium/base/message_loop/message_pump_libevent.cc:213
#9  0x00007f8ffe2dbf69 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:463
#10 0x00007f8ffe2bb848 in base::RunLoop::RunWithTimeout(base::TimeDelta) () at ./../../3rdparty/chromium/base/run_loop.cc:157
#11 0x00007f8ffe2eca34 in base::internal::ServiceThread::Run(base::RunLoop*) () at ./../../3rdparty/chromium/base/task/thread_pool/service_thread.cc:62
#12 0x00007f8ffe2fb7c8 in base::Thread::ThreadMain() () at ./../../3rdparty/chromium/base/threading/thread.cc:312
#13 0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#14 0x00007f9009c2e569 in start_thread (arg=0x7f8fcbfff700) at pthread_create.c:465
#15 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f8fd8e89700 (LWP 27321)):
#0  0x00007f900dedce47 in __GI___waitpid (pid=27317, stat_loc=0x7f8fd8e88c1c, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:29
#1  0x00007f8ffe32db37 in WaitpidWithTimeout () at ./../../3rdparty/chromium/base/process/process_posix.cc:62
#2  0x00007f8ffe32db37 in WaitForExitWithTimeoutImpl () at ./../../3rdparty/chromium/base/process/process_posix.cc:209
#3  0x00007f8ffe32db37 in base::Process::WaitForExitWithTimeout(base::TimeDelta, int*) const () at ./../../3rdparty/chromium/base/process/process_posix.cc:354
#4  0x00007f8ffe32dd24 in base::Process::WaitForExit(int*) const () at ./../../3rdparty/chromium/base/process/process_posix.cc:340
#5  0x00007f8ffe32dd24 in ThreadMain() () at ./../../3rdparty/chromium/base/process/kill_posix.cc:149
#6  0x00007f8ffe3335f5 in ThreadFunc() () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#7  0x00007f9009c2e569 in start_thread (arg=0x7f8fd8e89700) at pthread_create.c:465
#8  0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f8fdc07d700 (LWP 27247)):
#0  0x00007f900df0519b in __GI___poll (fds=0x7f8fd40358a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f900785c1a9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8fd40358a0, timeout=<optimized out>, context=0x7f8fd4000bd0) at gmain.c:4169
#2  0x00007f900785c1a9 in g_main_context_iterate (context=context@entry=0x7f8fd4000bd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007f900785c2bc in g_main_context_iteration (context=0x7f8fd4000bd0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007f900ea807eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8fd4000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f900ea1fd4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8fdc07cc00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f900e830657 in QThread::exec() (this=this@entry=0x7f900d3dada0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:536
#7  0x00007f900d163115 in QDBusConnectionManager::run() (this=0x7f900d3dada0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#8  0x00007f900e831b2c in QThreadPrivate::start(void*) (arg=0x7f900d3dada0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:342
#9  0x00007f9009c2e569 in start_thread (arg=0x7f8fdc07d700) at pthread_create.c:465
#10 0x00007f900df0f9ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f9011702980 (LWP 27225)):
[KCrash Handler]
#7  0x00007f900de4d160 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#8  0x00007f900de4e741 in __GI_abort () at abort.c:79
#9  0x00007f900de904a7 in __libc_message (action=action@entry=(do_abort | do_backtrace), fmt=fmt@entry=0x7f900df995f0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:181
#10 0x00007f900de96cc3 in malloc_printerr (action=<optimized out>, str=0x7f900df95fba "free(): invalid pointer", ptr=<optimized out>, ar_ptr=<optimized out>) at malloc.c:5428
#11 0x00007f900de985c9 in _int_free (av=0x7f900e1cbc20 <main_arena>, p=<optimized out>, have_lock=<optimized out>) at malloc.c:4170
#12 0x00007f8ffa482551 in  () at /usr/lib64/libfreetype.so.6
#13 0x00007f8ffa42b118 in  () at /usr/lib64/libfreetype.so.6
#14 0x00007f8fe8dfb1df in QFontEngineFT::loadGlyph(QFontEngineFT::QGlyphSet*, unsigned int, QFixed, QFontEngine::GlyphFormat, bool, bool) const (this=this@entry=0x55f25ce7cf60, set=set@entry=0x55f25cebb0f0, glyph=glyph@entry=67, subPixelPosition=..., subPixelPosition@entry=..., format=<optimized out>, format@entry=QFontEngine::Format_A32, fetchMetricsOnly=fetchMetricsOnly@entry=false, disableOutlineDrawing=false) at freetype/qfontengine_ft.cpp:1091
#15 0x00007f8fe8dfd167 in QFontEngineFT::loadGlyphFor(unsigned int, QFixed, QFontEngine::GlyphFormat, QTransform const&, bool, bool) (this=0x55f25ce7cf60, g=67, subPixelPosition=..., format=QFontEngine::Format_A32, t=..., fetchBoundingBox=fetchBoundingBox@entry=false, disableOutlineDrawing=false) at freetype/qfontengine_ft.cpp:1871
#16 0x00007f8fe8dfd5d1 in QFontEngineFT::glyphData(unsigned int, QFixed, QFontEngine::GlyphFormat, QTransform const&) (this=<optimized out>, glyphIndex=<optimized out>, subPixelPosition=..., neededFormat=<optimized out>, t=...) at freetype/qfontengine_ft.cpp:1836
#17 0x00007f900f2e0467 in QRasterPaintEngine::drawCachedGlyphs(int, unsigned int const*, QFixedPoint const*, QFontEngine*) (this=0x55f259d88e20, numGlyphs=<optimized out>, glyphs=<optimized out>, positions=<optimized out>, fontEngine=0x55f25ce7cf60) at painting/qpaintengine_raster.cpp:2886
#18 0x00007f900f2e4258 in QRasterPaintEngine::drawTextItem(QPointF const&, QTextItem const&) (this=0x55f259d88e20, p=..., textItem=...) at painting/qpaintengine_raster.cpp:3180
#19 0x00007f900f2fc88d in QPainterPrivate::drawTextItem(QPointF const&, QTextItem const&, QTextEngine*) (this=<optimized out>, p=..., _ti=..., textEngine=0x7ffca96aab80) at painting/qpainter.cpp:6562
#20 0x00007f900f11ecd3 in QTextLine::draw(QPainter*, QPointF const&, QTextLayout::FormatRange const*) const (this=this@entry=0x7ffca96aab20, p=p@entry=0x7ffca96ad750, pos=..., selection=selection@entry=0x0) at text/qtextlayout.cpp:2674
#21 0x00007f900f2f4dcd in qt_format_text(QFont const&, QRectF const&, int, QTextOption const*, QString const&, QRectF*, int, int*, int, QPainter*) (fnt=..., _r=..., tf=<optimized out>, option=option@entry=0x0, str=..., brect=brect@entry=0x0, tabstops=<optimized out>, ta=<optimized out>, tabarraylen=<optimized out>, painter=<optimized out>) at painting/qpainter.cpp:7733
#22 0x00007f900f2f56e1 in QPainter::drawText(QRect const&, int, QString const&, QRect*) (this=this@entry=0x7ffca96ad750, r=..., flags=flags@entry=401, str=..., br=br@entry=0x0) at painting/qpainter.cpp:5984
#23 0x00007f900fa56cc1 in QFontFamilyDelegate::paint(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const (this=0x55f25706e400, painter=0x7ffca96ad750, option=..., index=...) at widgets/qfontcombobox.cpp:277
#24 0x00007f900fbbf08d in QListView::paintEvent(QPaintEvent*) (this=this@entry=0x55f24f4cbd90, e=e@entry=0x7ffca96adf40) at itemviews/qlistview.cpp:1044
#25 0x00007f900fa357a3 in QComboBoxListView::paintEvent(QPaintEvent*) (this=0x55f24f4cbd90, e=0x7ffca96adf40) at ../../include/QtWidgets/5.14.1/QtWidgets/private/../../../../../src/widgets/widgets/qcombobox_p.h:127
#26 0x00007f900f969a98 in QWidget::event(QEvent*) (this=this@entry=0x55f24f4cbd90, event=event@entry=0x7ffca96adf40) at kernel/qwidget.cpp:9031
#27 0x00007f900fa0fd0e in QFrame::event(QEvent*) (this=0x55f24f4cbd90, e=0x7ffca96adf40) at widgets/qframe.cpp:550
#28 0x00007f900fb8baf3 in QAbstractItemView::viewportEvent(QEvent*) (this=0x55f24f4cbd90, event=0x7ffca96adf40) at itemviews/qabstractitemview.cpp:1754
#29 0x00007f900ea2124d in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (receiver=receiver@entry=0x55f24f4cc190, event=event@entry=0x7ffca96adf40) at kernel/qcoreapplication.cpp:1218
#30 0x00007f900f928b32 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55f235f7c230, receiver=receiver@entry=0x55f24f4cc190, e=e@entry=0x7ffca96adf40) at kernel/qapplication.cpp:3678
#31 0x00007f900f92fd60 in QApplication::notify(QObject*, QEvent*) (this=0x7ffca96aeb80, receiver=0x55f24f4cc190, e=0x7ffca96adf40) at kernel/qapplication.cpp:3430
#32 0x00007f900ea214c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55f24f4cc190, event=0x7ffca96adf40) at kernel/qcoreapplication.cpp:1092
#33 0x00007f900ea216ae in QCoreApplication::sendSpontaneousEvent(QObject*, QEvent*) (receiver=receiver@entry=0x55f24f4cc190, event=event@entry=0x7ffca96adf40) at kernel/qcoreapplication.cpp:1499
#34 0x00007f900f9621d5 in QWidgetPrivate::sendPaintEvent(QRegion const&) (this=this@entry=0x55f24f4c5730, toBePainted=...) at kernel/qwidget.cpp:5472
#35 0x00007f900f962dbe in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) (this=this@entry=0x55f24f4c5730, pdev=0x55f258f98f90, rgn=..., offset=..., flags=flags@entry=..., sharedPainter=sharedPainter@entry=0x0, repaintManager=<optimized out>) at kernel/qwidget.cpp:5422
#36 0x00007f900f9397ab in QWidgetRepaintManager::paintAndFlush() (this=this@entry=0x55f2719005b0) at kernel/qwidgetrepaintmanager.cpp:1011
#37 0x00007f900f939ec8 in QWidgetRepaintManager::sync() (this=0x55f2719005b0) at kernel/qwidgetrepaintmanager.cpp:776
#38 0x00007f900f96383f in QWidgetPrivate::syncBackingStore() (this=0x55f24f4c1330) at kernel/qwidget.cpp:1765
#39 0x00007f900f969c18 in QWidget::event(QEvent*) (this=this@entry=0x55f24f4a98c0, event=event@entry=0x7f8fe0027980) at kernel/qwidget.cpp:8976
#40 0x00007f900fa0fd0e in QFrame::event(QEvent*) (this=0x55f24f4a98c0, e=0x7f8fe0027980) at widgets/qframe.cpp:550
#41 0x00007f900f928b5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55f235f7c230, receiver=receiver@entry=0x55f24f4a98c0, e=e@entry=0x7f8fe0027980) at kernel/qapplication.cpp:3684
#42 0x00007f900f92fd60 in QApplication::notify(QObject*, QEvent*) (this=0x7ffca96aeb80, receiver=0x55f24f4a98c0, e=0x7f8fe0027980) at kernel/qapplication.cpp:3430
#43 0x00007f900ea214c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55f24f4a98c0, event=0x7f8fe0027980) at kernel/qcoreapplication.cpp:1092
#44 0x00007f900ea2169e in QCoreApplication::sendEvent(QObject*, QEvent*) (receiver=receiver@entry=0x55f24f4a98c0, event=event@entry=0x7f8fe0027980) at kernel/qcoreapplication.cpp:1487
#45 0x00007f900ea24141 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55f235f2b490) at kernel/qcoreapplication.cpp:1832
#46 0x00007f900ea246d8 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1691
#47 0x00007f900ea81123 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x55f235fea3d0) at kernel/qeventdispatcher_glib.cpp:277
#48 0x00007f900785be87 in g_main_dispatch (context=0x7f8fe0004fd0) at gmain.c:3142
#49 0x00007f900785be87 in g_main_context_dispatch (context=context@entry=0x7f8fe0004fd0) at gmain.c:3795
#50 0x00007f900785c230 in g_main_context_iterate (context=context@entry=0x7f8fe0004fd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3868
#51 0x00007f900785c2bc in g_main_context_iteration (context=0x7f8fe0004fd0, may_block=may_block@entry=1) at gmain.c:3929
#52 0x00007f900ea807cc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55f235feb490, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#53 0x00007f900ea1fd4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffca96aea50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#54 0x00007f900ea294c0 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1400
#55 0x000055f2358a4785 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kontact-19.12.2-lp151.115.1.x86_64/src/main.cpp:229
[Inferior 1 (process 27225) detached]

Possible duplicates by query: bug 418351, bug 418277, bug 418026, bug 415068, bug 414938.

Reported using DrKonqi