Application: kmail (5.5.1)

Qt Version: 5.7.1
Frameworks Version: 5.36.0
Operating System: Linux 4.13.4-200.fc26.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:

booted fedora
login to KDE
start kmail
resize window
- kmail crash here

-- Backtrace:
Application: KMail (kmail), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
84	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f7f55461940 (LWP 2242))]

Thread 26 (Thread 0x7f7eb783a700 (LWP 2305)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f7f5ab60478) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7f5ab60428, cond=0x7f7f5ab60450) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x7f7f5ab60450, mutex=0x7f7f5ab60428) at pthread_cond_wait.c:655
#3  0x00007f7f5aa65534 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#4  0x00007f7f5aa65579 in  () at /lib64/libQt5Script.so.5
#5  0x00007f7f7383b36d in start_thread (arg=0x7f7eb783a700) at pthread_create.c:456
#6  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 25 (Thread 0x7f7ec1689700 (LWP 2292)):
#0  0x00007f7f778deacd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7f63883569 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f7f6388367c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f7f786f6e6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7eb80008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7f786a760a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f7ec1688c70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f7f784ff99a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007f7f78503c9e in QThreadPrivate::start(void*) (arg=0x562ed8f3cf10) at thread/qthread_unix.cpp:368
#7  0x00007f7f7383b36d in start_thread (arg=0x7f7ec1689700) at pthread_create.c:456
#8  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 24 (Thread 0x7f7ee27fc700 (LWP 2277)):
#0  0x00007f7f778da22d in write () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7f7785822d in _IO_new_file_write (f=0x7f7f77ba6500 <_IO_2_1_stderr_>, data=0x7f7ee27f8ce0, n=39) at fileops.c:1271
#2  0x00007f7f77858bcf in new_do_write (to_do=<optimized out>, data=0x7f7ee27f8ce0 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7f7f77ba6500 <_IO_2_1_stderr_>) at fileops.c:526
#3  0x00007f7f77858bcf in _IO_new_file_xsputn (f=0x7f7f77ba6500 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1350
#4  0x00007f7f7782c747 in buffered_vfprintf (s=s@entry=0x7f7f77ba6500 <_IO_2_1_stderr_>, format=format@entry=0x7f7f5ddefb10 "[%s] %s\n", args=args@entry=0x7f7ee27fb2a0) at vfprintf.c:2346
#5  0x00007f7f77829786 in _IO_vfprintf_internal (s=s@entry=0x7f7f77ba6500 <_IO_2_1_stderr_>, format=0x7f7f5ddefb10 "[%s] %s\n", ap=ap@entry=0x7f7ee27fb2a0) at vfprintf.c:1293
#6  0x00007f7f778fb2d6 in ___fprintf_chk (fp=0x7f7f77ba6500 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007f7f5ddd7880 in _warn_helper () at /lib64/libevent-2.0.so.5
#8  0x00007f7f5ddd7a44 in event_warn () at /lib64/libevent-2.0.so.5
#9  0x00007f7f5dddc1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#10 0x00007f7f5ddc6dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#11 0x00007f7f6afbc559 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#14 0x00007f7f6afecf66 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#15 0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#16 0x00007f7f7383b36d in start_thread (arg=0x7f7ee27fc700) at pthread_create.c:456
#17 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 23 (Thread 0x7f7ee2ffd700 (LWP 2276)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f7ee2ffc988) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7ee2ffc938, cond=0x7f7ee2ffc960) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x7f7ee2ffc960, mutex=0x7f7ee2ffc938) at pthread_cond_wait.c:655
#3  0x00007f7f6afe1409 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afe1437 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afbbf5b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6afecf66 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f7383b36d in start_thread (arg=0x7f7ee2ffd700) at pthread_create.c:456
#11 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 22 (Thread 0x7f7ee37fe700 (LWP 2275)):
#0  0x00007f7f778da1cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7f56c850b1 in pa_read () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#2  0x00007f7f58b8e11e in pa_mainloop_prepare () at /lib64/libpulse.so.0
#3  0x00007f7f58b8eb90 in pa_mainloop_iterate () at /lib64/libpulse.so.0
#4  0x00007f7f58b8ec50 in pa_mainloop_run () at /lib64/libpulse.so.0
#5  0x00007f7f58b9cab9 in thread () at /lib64/libpulse.so.0
#6  0x00007f7f56cb4078 in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f7f7383b36d in start_thread (arg=0x7f7ee37fe700) at pthread_create.c:456
#8  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 21 (Thread 0x7f7ee3fff700 (LWP 2274)):
#0  0x00007f7f73841e0a in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f7ee3ffe820, expected=0, futex_word=0x7f7ee3ffe9a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f7f73841e0a in __pthread_cond_wait_common (abstime=0x7f7ee3ffe8c0, mutex=0x7f7ee3ffe958, cond=0x7f7ee3ffe980) at pthread_cond_wait.c:533
#2  0x00007f7f73841e0a in __pthread_cond_timedwait (cond=0x7f7ee3ffe980, mutex=0x7f7ee3ffe958, abstime=0x7f7ee3ffe8c0) at pthread_cond_wait.c:667
#3  0x00007f7f6b01a172 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afe138e in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afbbfab in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6afecf66 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f7383b36d in start_thread (arg=0x7f7ee3fff700) at pthread_create.c:456
#11 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 20 (Thread 0x7f7f00ff9700 (LWP 2273)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562ed458ab28) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x562ed458aa68, cond=0x562ed458ab00) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x562ed458ab00, mutex=0x562ed458aa68) at pthread_cond_wait.c:655
#3  0x00007f7f6b769ea0 in cc::SingleThreadTaskGraphRunner::Run() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afec9a1 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f7383b36d in start_thread (arg=0x7f7f00ff9700) at pthread_create.c:456
#7  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 19 (Thread 0x7f7f017fa700 (LWP 2272)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f7f017f9988) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7f017f9938, cond=0x7f7f017f9960) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x7f7f017f9960, mutex=0x7f7f017f9938) at pthread_cond_wait.c:655
#3  0x00007f7f6afe1409 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afe1437 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afbbf5b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6afecf66 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f7383b36d in start_thread (arg=0x7f7f017fa700) at pthread_create.c:456
#11 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 18 (Thread 0x7f7f01ffb700 (LWP 2271)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562ed4536d18) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x562ed4536cc8, cond=0x562ed4536cf0) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x562ed4536cf0, mutex=0x562ed4536cc8) at pthread_cond_wait.c:655
#3  0x00007f7f6afeb725 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afebc07 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afec9a1 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f7383b36d in start_thread (arg=0x7f7f01ffb700) at pthread_create.c:456
#8  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 17 (Thread 0x7f7f027fc700 (LWP 2270)):
#0  0x00007f7f73841e0a in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f7f027fba30, expected=0, futex_word=0x7f7f14004234) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f7f73841e0a in __pthread_cond_wait_common (abstime=0x7f7f027fbad0, mutex=0x7f7f140041e0, cond=0x7f7f14004208) at pthread_cond_wait.c:533
#2  0x00007f7f73841e0a in __pthread_cond_timedwait (cond=0x7f7f14004208, mutex=0x7f7f140041e0, abstime=0x7f7f027fbad0) at pthread_cond_wait.c:667
#3  0x00007f7f6b01a172 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6aff0229 in base::PosixDynamicThreadPool::WaitForTask() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6aff078b in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f7383b36d in start_thread (arg=0x7f7f027fc700) at pthread_create.c:456
#8  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 16 (Thread 0x7f7f02ffd700 (LWP 2269)):
#0  0x00007f7f73841e0a in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f7f02ffca30, expected=0, futex_word=0x7f7f14004230) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f7f73841e0a in __pthread_cond_wait_common (abstime=0x7f7f02ffcad0, mutex=0x7f7f140041e0, cond=0x7f7f14004208) at pthread_cond_wait.c:533
#2  0x00007f7f73841e0a in __pthread_cond_timedwait (cond=0x7f7f14004208, mutex=0x7f7f140041e0, abstime=0x7f7f02ffcad0) at pthread_cond_wait.c:667
#3  0x00007f7f6b01a172 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6aff0229 in base::PosixDynamicThreadPool::WaitForTask() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6aff078b in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f7383b36d in start_thread (arg=0x7f7f02ffd700) at pthread_create.c:456
#8  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 15 (Thread 0x7f7f037fe700 (LWP 2268)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f7f037fd988) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7f037fd938, cond=0x7f7f037fd960) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x7f7f037fd960, mutex=0x7f7f037fd938) at pthread_cond_wait.c:655
#3  0x00007f7f6afe1409 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afe1437 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afbbf5b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6afecf66 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f7383b36d in start_thread (arg=0x7f7f037fe700) at pthread_create.c:456
#11 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 14 (Thread 0x7f7f03fff700 (LWP 2267)):
#0  0x00007f7f778f94bc in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f7f778fb284 in ___fprintf_chk (fp=0x7f7f77ba7730 <_IO_stdfile_2_lock>, flag=1, format=0x7f7f5ddefb10 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f7f5ddd7880 in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f7f5ddd7a44 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f7f5dddc1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f7f5ddc6dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f7f6afbc693 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6a8bda78 in content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f6a8be02b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f7f6afed018 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f7f7383b36d in start_thread (arg=0x7f7f03fff700) at pthread_create.c:456
#14 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 13 (Thread 0x7f7f20ff9700 (LWP 2266)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f7f20ff85a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7f20ff8558, cond=0x7f7f20ff8580) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x7f7f20ff8580, mutex=0x7f7f20ff8558) at pthread_cond_wait.c:655
#3  0x00007f7f6afe1409 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afe1437 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afbbf5b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6a8bd9c8 in content::BrowserThreadImpl::CacheThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6a8be01b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f6afed018 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f7f7383b36d in start_thread (arg=0x7f7f20ff9700) at pthread_create.c:456
#13 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 12 (Thread 0x7f7f217fa700 (LWP 2265)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f7f217f95a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7f217f9558, cond=0x7f7f217f9580) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x7f7f217f9580, mutex=0x7f7f217f9558) at pthread_cond_wait.c:655
#3  0x00007f7f6afe1409 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afe1437 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afbbf5b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6a8bd918 in content::BrowserThreadImpl::ProcessLauncherThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6a8be00b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f6afed018 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f7f7383b36d in start_thread (arg=0x7f7f217fa700) at pthread_create.c:456
#13 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 11 (Thread 0x7f7f21ffb700 (LWP 2264)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f7f21ffa5a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7f21ffa558, cond=0x7f7f21ffa580) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x7f7f21ffa580, mutex=0x7f7f21ffa558) at pthread_cond_wait.c:655
#3  0x00007f7f6afe1409 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afe1437 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afbbf5b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6a8bd868 in content::BrowserThreadImpl::FileUserBlockingThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6a8bdffb in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f6afed018 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f7f7383b36d in start_thread (arg=0x7f7f21ffb700) at pthread_create.c:456
#13 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 10 (Thread 0x7f7f227fc700 (LWP 2263)):
#0  0x00007f7f778f94bc in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f7f778fb284 in ___fprintf_chk (fp=0x7f7f77ba7730 <_IO_stdfile_2_lock>, flag=1, format=0x7f7f5ddefb10 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f7f5ddd7880 in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f7f5ddd7a44 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f7f5dddc1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f7f5ddc6dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f7f6afbc559 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6a8bd7b8 in content::BrowserThreadImpl::FileThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f6a8bdfeb in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f7f6afed018 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f7f7383b36d in start_thread (arg=0x7f7f227fc700) at pthread_create.c:456
#14 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 9 (Thread 0x7f7f22ffd700 (LWP 2262)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f7f22ffc5a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7f22ffc558, cond=0x7f7f22ffc580) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x7f7f22ffc580, mutex=0x7f7f22ffc558) at pthread_cond_wait.c:655
#3  0x00007f7f6afe1409 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f7f6afe1437 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f7f6afbbf5b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6a8bd708 in content::BrowserThreadImpl::DBThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6a8bdfdb in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f6afed018 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f7f7383b36d in start_thread (arg=0x7f7f22ffd700) at pthread_create.c:456
#13 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 8 (Thread 0x7f7f237fe700 (LWP 2261)):
#0  0x00007f7f778f94bc in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f7f778fb284 in ___fprintf_chk (fp=0x7f7f77ba7730 <_IO_stdfile_2_lock>, flag=1, format=0x7f7f5ddefb10 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f7f5ddd7880 in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f7f5ddd7a44 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f7f5dddc1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f7f5ddc6dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f7f6afbc5ad in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f7f6afb8828 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f7f6afd526b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f7f6afecf66 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f7f6afe906b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f7f7383b36d in start_thread (arg=0x7f7f237fe700) at pthread_create.c:456
#12 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 7 (Thread 0x7f7f3dbb5700 (LWP 2249)):
#0  0x00007f7f778deacd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7f63883569 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f7f6388367c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f7f786f6e6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7f280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7f786a760a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f7f3dbb4c70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f7f784ff99a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007f7f78503c9e in QThreadPrivate::start(void*) (arg=0x562ed42d4e50) at thread/qthread_unix.cpp:368
#7  0x00007f7f7383b36d in start_thread (arg=0x7f7f3dbb5700) at pthread_create.c:456
#8  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 6 (Thread 0x7f7f3e3b6700 (LWP 2248)):
#0  0x00007f7f778f9572 in __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:96
#1  0x00007f7f778da1d9 in read () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007f7f638c7170 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#3  0x00007f7f63883078 in g_main_context_check () at /lib64/libglib-2.0.so.0
#4  0x00007f7f63883510 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#5  0x00007f7f6388367c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#6  0x00007f7f786f6e6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7f340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f7f786a760a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f7f3e3b5c70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#8  0x00007f7f784ff99a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#9  0x00007f7f78503c9e in QThreadPrivate::start(void*) (arg=0x562ed430d160) at thread/qthread_unix.cpp:368
#10 0x00007f7f7383b36d in start_thread (arg=0x7f7f3e3b6700) at pthread_create.c:456
#11 0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 5 (Thread 0x7f7f3ec6a700 (LWP 2247)):
#0  0x00007f7f778deacd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7f63883569 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f7f6388367c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f7f786f6e6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7f300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7f786a760a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f7f3ec69c70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f7f784ff99a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007f7f78503c9e in QThreadPrivate::start(void*) (arg=0x562ed42f6ed0) at thread/qthread_unix.cpp:368
#7  0x00007f7f7383b36d in start_thread (arg=0x7f7f3ec6a700) at pthread_create.c:456
#8  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 4 (Thread 0x7f7f3fe7b700 (LWP 2246)):
#0  0x00007f7f778deacd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7f63883569 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f7f6388367c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f7f786f6e6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7f380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7f786a760a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f7f3fe7ac30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f7f784ff99a in QThread::exec() (this=this@entry=0x7f7f79a62060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:507
#6  0x00007f7f799efa39 in QDBusConnectionManager::run() (this=0x7f7f79a62060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#7  0x00007f7f78503c9e in QThreadPrivate::start(void*) (arg=0x7f7f79a62060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368
#8  0x00007f7f7383b36d in start_thread (arg=0x7f7f3fe7b700) at pthread_create.c:456
#9  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 3 (Thread 0x7f7f40b91700 (LWP 2245)):
#0  0x00007f7f7384190b in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562ed41f5990) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f7f7384190b in __pthread_cond_wait_common (abstime=0x0, mutex=0x562ed41f5940, cond=0x562ed41f5968) at pthread_cond_wait.c:502
#2  0x00007f7f7384190b in __pthread_cond_wait (cond=0x562ed41f5968, mutex=0x562ed41f5940) at pthread_cond_wait.c:655
#3  0x00007f7f48b9f6ab in cnd_wait (mtx=0x562ed41f5940, cond=0x562ed41f5968) at ../../include/c11/threads_posix.h:159
#4  0x00007f7f48b9f6ab in util_queue_thread_func (input=input@entry=0x562ed41f5f30) at u_queue.c:158
#5  0x00007f7f48b9f3e7 in impl_thrd_routine (p=<optimized out>) at ../../include/c11/threads_posix.h:87
#6  0x00007f7f7383b36d in start_thread (arg=0x7f7f40b91700) at pthread_create.c:456
#7  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 2 (Thread 0x7f7f4b909700 (LWP 2244)):
#0  0x00007f7f778deacd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7f62f77c97 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f7f62f79a8a in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f7f4e898ba9 in QXcbEventReader::run() (this=0x562ed41223a0) at qxcbconnection.cpp:1343
#4  0x00007f7f78503c9e in QThreadPrivate::start(void*) (arg=0x562ed41223a0) at thread/qthread_unix.cpp:368
#5  0x00007f7f7383b36d in start_thread (arg=0x7f7f4b909700) at pthread_create.c:456
#6  0x00007f7f778eabbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 1 (Thread 0x7f7f55461940 (LWP 2242)):
[KCrash Handler]
#6  0x00007f7f7781069b in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f7f778124a0 in __GI_abort () at abort.c:89
#8  0x00007f7f77808d5a in __assert_fail_base (fmt=0x7f7f779724a8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f7f4864b8c5 "kref", file=file@entry=0x7f7f4864b8ba "pushbuf.c", line=line@entry=727, function=function@entry=0x7f7f4864b8f0 <__PRETTY_FUNCTION__.6312> "nouveau_pushbuf_data") at assert.c:92
#9  0x00007f7f77808dd2 in __GI___assert_fail (assertion=assertion@entry=0x7f7f4864b8c5 "kref", file=file@entry=0x7f7f4864b8ba "pushbuf.c", line=line@entry=727, function=function@entry=0x7f7f4864b8f0 <__PRETTY_FUNCTION__.6312> "nouveau_pushbuf_data") at assert.c:101
#10 0x00007f7f48649d1d in nouveau_pushbuf_data (push=push@entry=0x562ed41e0430, bo=0x562ed41f4b50, offset=11240, length=472) at pushbuf.c:727
#11 0x00007f7f48649cd6 in nouveau_pushbuf_data (push=push@entry=0x562ed41e0430, bo=bo@entry=0x0, offset=offset@entry=0, length=length@entry=0) at pushbuf.c:719
#12 0x00007f7f48649da4 in pushbuf_submit (push=push@entry=0x562ed41e0430, chan=<optimized out>, chan=<optimized out>) at pushbuf.c:330
#13 0x00007f7f4864a04f in pushbuf_flush (push=push@entry=0x562ed41e0430) at pushbuf.c:405
#14 0x00007f7f4864abe0 in nouveau_pushbuf_kick (push=0x562ed41e0430, chan=<optimized out>) at pushbuf.c:779
#15 0x00007f7f48e4cb16 in PUSH_KICK (push=<optimized out>) at ./nouveau_winsys.h:59
#16 0x00007f7f48e4cb16 in nvc0_flush (pipe=0x562ed48b2370, fence=<optimized out>, flags=<optimized out>) at nvc0/nvc0_context.c:42
#17 0x00007f7f48a9d4f6 in st_context_flush (stctxi=0x562ed48e7e00, flags=3, fence=0x7ffd8684f2e0) at state_tracker/st_manager.c:497
#18 0x00007f7f48c3199a in dri_flush (cPriv=<optimized out>, dPriv=<optimized out>, flags=3, reason=<optimized out>) at dri_drawable.c:541
#19 0x00007f7f4a5b027f in loader_dri3_swap_buffers_msc (draw=0x562ed4981238, target_msc=0, divisor=0, remainder=0, flush_flags=3, force_copy=<optimized out>) at loader_dri3_helper.c:643
#20 0x00007f7f7d1ed66d in QGLXContext::swapBuffers(QPlatformSurface*) (this=0x562ed48b15b0, surface=0x562ed47bc850) at qglxintegration.cpp:541
#21 0x00007f7f78a15fda in QOpenGLContext::swapBuffers(QSurface*) (this=this@entry=0x562ed483ef60, surface=surface@entry=0x562ed47b77d0) at kernel/qopenglcontext.cpp:1063
#22 0x00007f7f78c238cf in QPlatformBackingStore::composeAndFlush(QWindow*, QRegion const&, QPoint const&, QPlatformTextureList*, QOpenGLContext*, bool) (this=this@entry=0x562ed47d0800, window=window@entry=0x562ed47b77c0, region=..., offset=..., textures=<optimized out>, context=<optimized out>, translucentBackground=<optimized out>) at painting/qplatformbackingstore.cpp:414
#23 0x00007f7f4e8b83b7 in QXcbBackingStore::composeAndFlush(QWindow*, QRegion const&, QPoint const&, QPlatformTextureList*, QOpenGLContext*, bool) (this=0x562ed47d0800, window=0x562ed47b77c0, region=..., offset=..., textures=<optimized out>, context=<optimized out>, translucentBackground=false) at qxcbbackingstore.cpp:619
#24 0x00007f7f78f00049 in QWidgetBackingStore::qt_flush(QWidget*, QRegion const&, QBackingStore*, QWidget*, QPoint const&, QPlatformTextureList*, QWidgetBackingStore*) (widget=0x562ed43a10f0, region=..., backingStore=<optimized out>, tlw=<optimized out>, tlwOffset=..., widgetTextures=<optimized out>, widgetBackingStore=<optimized out>) at kernel/qwidgetbackingstore.cpp:139
#25 0x00007f7f78f0176e in QWidgetBackingStore::flush(QWidget*) (this=this@entry=0x562ed47d0ed0, widget=widget@entry=0x0) at kernel/qwidgetbackingstore.cpp:1419
#26 0x00007f7f78f02e18 in QWidgetBackingStore::endPaint(QRegion const&, QBackingStore*, BeginPaintInfo*) (beginPaintInfo=<synthetic pointer>, backingStore=<optimized out>, cleaned=..., this=0x562ed47d0ed0) at kernel/qwidgetbackingstore.cpp:361
#27 0x00007f7f78f02e18 in QWidgetBackingStore::doSync() (this=this@entry=0x562ed47d0ed0) at kernel/qwidgetbackingstore.cpp:1403
#28 0x00007f7f78f0302d in QWidgetBackingStore::sync() (this=0x562ed47d0ed0) at kernel/qwidgetbackingstore.cpp:1179
#29 0x00007f7f78f221af in QWidgetPrivate::syncBackingStore() (this=0x562ed43a13d0) at kernel/qwidget.cpp:1962
#30 0x00007f7f78f39ef8 in QWidget::event(QEvent*) (this=this@entry=0x562ed43a10f0, event=event@entry=0x562ed4704b10) at kernel/qwidget.cpp:9100
#31 0x00007f7f79033f2b in QMainWindow::event(QEvent*) (this=this@entry=0x562ed43a10f0, event=event@entry=0x562ed4704b10) at widgets/qmainwindow.cpp:1543
#32 0x00007f7f7ba82a57 in KMainWindow::event(QEvent*) (this=this@entry=0x562ed43a10f0, ev=ev@entry=0x562ed4704b10) at /usr/src/debug/kxmlgui-5.36.0/src/kmainwindow.cpp:867
#33 0x00007f7f7bac7a65 in KXmlGuiWindow::event(QEvent*) (this=0x562ed43a10f0, ev=0x562ed4704b10) at /usr/src/debug/kxmlgui-5.36.0/src/kxmlguiwindow.cpp:119
#34 0x00007f7f78ef35dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x562ed43a10f0, e=0x562ed4704b10) at kernel/qapplication.cpp:3799
#35 0x00007f7f78efac74 in QApplication::notify(QObject*, QEvent*) (this=0x7ffd868504c0, receiver=0x562ed43a10f0, e=0x562ed4704b10) at kernel/qapplication.cpp:3556
#36 0x00007f7f786a8627 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x562ed43a10f0, event=event@entry=0x562ed4704b10) at kernel/qcoreapplication.cpp:988
#37 0x00007f7f786aa85b in QCoreApplication::sendEvent(QObject*, QEvent*) (event=0x562ed4704b10, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#38 0x00007f7f786aa85b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x562ed40f39f0) at kernel/qcoreapplication.cpp:1649
#39 0x00007f7f786aad68 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1503
#40 0x00007f7f786f6dd3 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x562ed415cb50) at kernel/qeventdispatcher_glib.cpp:276
#41 0x00007f7f63883247 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#42 0x00007f7f638835e8 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#43 0x00007f7f6388367c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#44 0x00007f7f786f6e4f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x562ed4166fa0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#45 0x00007f7f786a760a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd86850000, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#46 0x00007f7f786af27c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1261
#47 0x0000562ed309c7dd in main ()

Possible duplicates by query: bug 382799, bug 380903.

Reported using DrKonqi