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Bug#923490: kmail: random segfaults while idle



Control: reassign -1 qtwebengine 5.11.3+dfsg-2
Control: affects -1 kmail
Control: retitle -1 QtWebEnigne make kmail random segfault while idle

The complete backtrace looks not to be complete, as I don't see any reference 
to any libkf5X nor to kmail. For me it looks like an issue in qtwebegine, 
that's why I reassign it to qtwebengine.

hefee

On Donnerstag, 28. Februar 2019 23:15:06 CET Juha Jäykkä wrote:
> Package: kmail
> Version: 4:18.08.3-1
> Severity: important
> 
> Dear Maintainer,
> 
> Kmail sometimes sigsegvs while (seemingly) idle. Needless to say this
> seriously degrades its usability. I think this has only ever happened while
> moving the mouse pointer across the window. Just moving, not clicking
> anything, not using mouse scroll wheel, just moving the pointer, not even
> stopping while kmail window is focused, so tooltip texts etc should not be
> activating.
> 
> Backtrace follows.
> 
> Application: KMail (kmail), signal: Segmentation fault
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> [Current thread is 1 (Thread 0x7f7c358dbf00 (LWP 7560))]
> 
> Thread 39 (Thread 0x7f7b44bec700 (LWP 9712)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7b44beb400, expected=0, futex_word=0x7f7b44beb5e8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7b44beb4a0, mutex=0x7f7b44beb598,
> cond=0x7f7b44beb5c0) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7b44beb5c0, mutex=0x7f7b44beb598,
> abstime=0x7f7b44beb4a0) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123f2
> in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816981
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817c7f in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 38 (Thread 0x7f7b453ed700 (LWP 9711)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7b453ec400, expected=0, futex_word=0x7f7b453ec5e8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7b453ec4a0, mutex=0x7f7b453ec598,
> cond=0x7f7b453ec5c0) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7b453ec5c0, mutex=0x7f7b453ec598,
> abstime=0x7f7b453ec4a0) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123f2
> in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816981
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 37 (Thread 0x7f7b4df11700 (LWP 9710)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7b4df10400, expected=0, futex_word=0x7f7b4df105e8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7b4df104a0, mutex=0x7f7b4df10598,
> cond=0x7f7b4df105c0) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7b4df105c0, mutex=0x7f7b4df10598,
> abstime=0x7f7b4df104a0) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123f2
> in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816981
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 36 (Thread 0x7f7b4d3cb700 (LWP 9707)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7b4d3ca400, expected=0, futex_word=0x7f7b4d3ca5e8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7b4d3ca4a0, mutex=0x7f7b4d3ca598,
> cond=0x7f7b4d3ca5c0) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7b4d3ca5c0, mutex=0x7f7b4d3ca598,
> abstime=0x7f7b4d3ca4a0) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123f2
> in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816981
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 35 (Thread 0x7f7bde7fc700 (LWP 9696)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7bde7fb400, expected=0, futex_word=0x7f7bde7fb5e8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7bde7fb4a0, mutex=0x7f7bde7fb598,
> cond=0x7f7bde7fb5c0) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7bde7fb5c0, mutex=0x7f7bde7fb598,
> abstime=0x7f7bde7fb4a0) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123f2
> in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816981
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 34 (Thread 0x7f7b4638f700 (LWP 9622)):
> #0  0x00007ffdd25fdb82 in clock_gettime ()
> #1  0x00007f7c4d794326 in __GI___clock_gettime (clock_id=1,
> tp=0x7f7b4638e3e0) at ../sysdeps/unix/clock_gettime.c:115 #2 
> 0x00007f7c4dc8e971 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 
> 0x00007f7c4dc8d1a9 in QTimerInfoList::updateCurrentTime() () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4  0x00007f7c4dc8d7a5 in
> QTimerInfoList::timerWait(timespec&) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5  0x00007f7c4dc8edce in  () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6  0x00007f7c4a43b669 in
> g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 
> 0x00007f7c4a43c06b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 
> 0x00007f7c4a43c25c in g_main_context_iteration () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #9  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #11 0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #12
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #13
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #14 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 33 (Thread 0x7f7b47b92700 (LWP 9529)):
> #0  0x00007ffdd25fdb82 in clock_gettime ()
> #1  0x00007f7c4d794326 in __GI___clock_gettime (clock_id=1,
> tp=0x7f7b47b913e0) at ../sysdeps/unix/clock_gettime.c:115 #2 
> 0x00007f7c4dc8e971 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 
> 0x00007f7c4dc8d1a9 in QTimerInfoList::updateCurrentTime() () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4  0x00007f7c4dc8d7a5 in
> QTimerInfoList::timerWait(timespec&) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5  0x00007f7c4dc8edce in  () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6  0x00007f7c4a43b669 in
> g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 
> 0x00007f7c4a43c06b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 
> 0x00007f7c4a43c25c in g_main_context_iteration () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #9  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #11 0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #12
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #13
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #14 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 32 (Thread 0x7f7b46b90700 (LWP 9472)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7b46b8f400, expected=0, futex_word=0x7f7b46b8f5e8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7b46b8f4a0, mutex=0x7f7b46b8f598,
> cond=0x7f7b46b8f5c0) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7b46b8f5c0, mutex=0x7f7b46b8f598,
> abstime=0x7f7b46b8f4a0) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123f2
> in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816981
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 31 (Thread 0x7f7b47391700 (LWP 9301)):
> #0  0x00007f7c4a485e78 in g_mutex_lock () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1  0x00007f7c4a43b140 in
> g_main_context_acquire () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 
> 0x00007f7c4a43bff5 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 
> 0x00007f7c4a43c25c in g_main_context_iteration () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5  0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6  0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #9  0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 30 (Thread 0x7f7c01ffb700 (LWP 9184)):
> #0  0x00007f7c4d793ac8 in __libc_enable_asynccancel () at
> ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:49 #1  0x00007f7c4d77bb36
> in __GI___poll (fds=0x7f7c30006670, nfds=1, timeout=-1) at
> ../sysdeps/unix/sysv/linux/poll.c:29 #2  0x00007f7c4a43c136 in  () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3  0x00007f7c4a43c25c in
> g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
> #4  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5  0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6  0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #9  0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 29 (Thread 0x7f7c027fc700 (LWP 9176)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7c027fb400, expected=0, futex_word=0x7f7c027fb5e8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7c027fb4a0, mutex=0x7f7c027fb598,
> cond=0x7f7c027fb5c0) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7c027fb5c0, mutex=0x7f7c027fb598,
> abstime=0x7f7c027fb4a0) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123f2
> in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816981
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 28 (Thread 0x7f7bddffb700 (LWP 8869)):
> #0  0x00007f7c4afc72b0 in __GI___pthread_getspecific (key=6) at
> pthread_getspecific.c:30 #1  0x00007f7c4a464900 in g_thread_self () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2  0x00007f7c4a43c24d in
> g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
> #3  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4  0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5  0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #8  0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 27 (Thread 0x7f7c17fff700 (LWP 27220)):
> #0  0x00007f7c4d6c16e0 in _nl_make_l10nflist
> (l10nfile_list=l10nfile_list@entry=0x7f7c4d849cd8 <_nl_loaded_domains>,
> dirlist=dirlist@entry=0x7f7c4d815ab0 <_nl_default_dirname>
> "/usr/share/locale", dirlist_len=18, mask=mask@entry=0,
> language=language@entry=0x7f7c17ffe200 "en_GB.UTF-8",
> territory=territory@entry=0x0, codeset=0x0, normalized_codeset=0x0,
> modifier=0x0, filename=0x7f7c17ffe220 "LC_MESSAGES/libc.mo", do_allocate=0)
> at ../intl/l10nflist.c:219 #1  0x00007f7c4d6bf444 in _nl_find_domain
> (dirname=dirname@entry=0x7f7c4d815ab0 <_nl_default_dirname>
> "/usr/share/locale", locale=locale@entry=0x7f7c17ffe200 "en_GB.UTF-8",
> domainname=domainname@entry=0x7f7c17ffe220 "LC_MESSAGES/libc.mo",
> domainbinding=domainbinding@entry=0x0) at finddomain.c:90 #2 
> 0x00007f7c4d6bed7b in __dcigettext (domainname=<optimized out>,
> msgid1=0x7f7c4d80e809 "Bad file descriptor", msgid2=msgid2@entry=0x0,
> plural=plural@entry=0, n=n@entry=0, category=category@entry=5) at
> dcigettext.c:703 #3  0x00007f7c4d6bdaef in __GI___dcgettext
> (domainname=<optimized out>, msgid=<optimized out>,
> category=category@entry=5) at dcgettext.c:47 #4  0x00007f7c4d71516c in
> __GI___strerror_r (errnum=errnum@entry=9, buf=buf@entry=0x0,
> buflen=buflen@entry=0) at _strerror.c:71 #5  0x00007f7c4d71508f in strerror
> (errnum=9) at strerror.c:31
> #6  0x00007f7c3f994c21 in event_warn () at
> /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #7  0x00007f7c3f996588 in  ()
> at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #8  0x00007f7c3f98c329 in
> event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #9 
> 0x00007f7c447e47cd in
> base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #10 0x00007f7c44803c8b
> in base::RunLoop::Run() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #11 0x00007f7c44825204
> in base::Thread::ThreadMain() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #12 0x00007f7c44820c81
> in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #13 0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #14
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 26 (Thread 0x7f7bd0f36700 (LWP 27211)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x7f7c42378fb8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7c42378f68,
> cond=0x7f7c42378f90) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x7f7c42378f90, mutex=0x7f7c42378f68) at
> pthread_cond_wait.c:655 #3  0x00007f7c42281e4a in  () at
> /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #4  0x00007f7c42281e69 in  ()
> at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #5  0x00007f7c4afbffa3 in
> start_thread (arg=<optimized out>) at pthread_create.c:486 #6 
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 25 (Thread 0x7f7bd1737700 (LWP 27197)):
> #0  0x00007f7c4d793ac8 in __libc_enable_asynccancel () at
> ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:49 #1  0x00007f7c4d77bb36
> in __GI___poll (fds=0x55ccae278e20, nfds=1, timeout=-1) at
> ../sysdeps/unix/sysv/linux/poll.c:29 #2  0x00007f7c4a43c136 in  () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3  0x00007f7c4a43c25c in
> g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
> #4  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5  0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6  0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #9  0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 24 (Thread 0x7f7bdeffd700 (LWP 27177)):
> #0  0x00007f7c4d793a8b in __lll_lock_wait_private () at
> ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63 #1  0x00007f7c4d795814
> in __fprintf_chk (fp=0x7f7c4d84a8b0 <_IO_stdfile_2_lock>, flag=1,
> format=0x7f7c3f9ac848 "[%s] %s\n") at fprintf_chk.c:30 #2 
> 0x00007f7c3f994a5a in event_logv_ () at
> /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #3  0x00007f7c3f994c34 in
> event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #4 
> 0x00007f7c3f996588 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #5
>  0x00007f7c3f98c329 in event_base_loop () at
> /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #6  0x00007f7c447e47cd in
> base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7  0x00007f7c44803c8b
> in base::RunLoop::Run() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8  0x00007f7c44825204
> in base::Thread::ThreadMain() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c44820c81
> in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #10 0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #11
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 23 (Thread 0x7f7bdf7fe700 (LWP 27176)):
> #0  0x00007f7c3b6d4811 in pa_fdsem_after_poll () at
> /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so #1 
> 0x00007f7c3b6ec3ed in  () at
> /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so #2 
> 0x00007f7c3ff9eca8 in pa_mainloop_dispatch () at
> /usr/lib/x86_64-linux-gnu/libpulse.so.0 #3  0x00007f7c3ff9ef7c in
> pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0 #4 
> 0x00007f7c3ff9f020 in pa_mainloop_run () at
> /usr/lib/x86_64-linux-gnu/libpulse.so.0 #5  0x00007f7c3ffad049 in  () at
> /usr/lib/x86_64-linux-gnu/libpulse.so.0 #6  0x00007f7c3b6fc4f8 in  () at
> /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so #7 
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #8  0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 22 (Thread 0x7f7be3fff700 (LWP 27175)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7be3ffe3c0, expected=0, futex_word=0x7f7be3ffe5a8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7be3ffe460, mutex=0x7f7be3ffe558,
> cond=0x7f7be3ffe580) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7be3ffe580, mutex=0x7f7be3ffe558,
> abstime=0x7f7be3ffe460) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c447e4370
> in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44803c8b
> in base::RunLoop::Run() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7  0x00007f7c44825204
> in base::Thread::ThreadMain() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8  0x00007f7c44820c81
> in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 21 (Thread 0x7f7bf8ff9700 (LWP 27174)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7bf8ff83c0, expected=0, futex_word=0x7f7bf8ff85a8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7bf8ff8460, mutex=0x7f7bf8ff8558,
> cond=0x7f7bf8ff8580) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7bf8ff8580, mutex=0x7f7bf8ff8558,
> abstime=0x7f7bf8ff8460) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c447e4370
> in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44803c8b
> in base::RunLoop::Run() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7  0x00007f7c44825204
> in base::Thread::ThreadMain() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8  0x00007f7c44820c81
> in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 20 (Thread 0x7f7bf97fa700 (LWP 27173)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x55ccadddf208) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x55ccadddf148,
> cond=0x55ccadddf1e0) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x55ccadddf1e0, mutex=0x55ccadddf148) at
> pthread_cond_wait.c:655 #3  0x00007f7c4480f969 in
> base::ConditionVariable::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c451757d8
> in cc::SingleThreadTaskGraphRunner::Run() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c44827d86
> in base::SimpleThread::ThreadMain() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44820c81
> in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #8 
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 19 (Thread 0x7f7bf9ffb700 (LWP 27172)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x7f7bf9ffa5f8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7bf9ffa5a8,
> cond=0x7f7bf9ffa5d0) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x7f7bf9ffa5d0, mutex=0x7f7bf9ffa5a8) at
> pthread_cond_wait.c:655 #3  0x00007f7c4480f969 in
> base::ConditionVariable::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c44812318
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123af
> in base::WaitableEvent::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816998
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 18 (Thread 0x7f7bfa7fc700 (LWP 27171)):
> #0  0x00007f7c3f9949ed in event_logv_ () at
> /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #1  0x00007f7c3f994c34 in
> event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #2 
> 0x00007f7c3f996588 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #3
>  0x00007f7c3f98c329 in event_base_loop () at
> /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #4  0x00007f7c447e48b4 in
> base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c44803c8b
> in base::RunLoop::Run() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c43914dba
> in content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7  0x00007f7c43915267
> in content::BrowserThreadImpl::Run(base::RunLoop*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8  0x00007f7c44825338
> in base::Thread::ThreadMain() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c44820c81
> in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #10 0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #11
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 17 (Thread 0x7f7bfaffd700 (LWP 27170)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x7f7bfaffc5f8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7bfaffc5a8,
> cond=0x7f7bfaffc5d0) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x7f7bfaffc5d0, mutex=0x7f7bfaffc5a8) at
> pthread_cond_wait.c:655 #3  0x00007f7c4480f969 in
> base::ConditionVariable::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c44812318
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123af
> in base::WaitableEvent::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816998
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817c7f in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 16 (Thread 0x7f7bfb7fe700 (LWP 27169)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x7f7bfb7fd5f8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7bfb7fd5a8,
> cond=0x7f7bfb7fd5d0) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x7f7bfb7fd5d0, mutex=0x7f7bfb7fd5a8) at
> pthread_cond_wait.c:655 #3  0x00007f7c4480f969 in
> base::ConditionVariable::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c44812318
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123af
> in base::WaitableEvent::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816998
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 15 (Thread 0x7f7bfbfff700 (LWP 27168)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x7f7bfbffe5f8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7bfbffe5a8,
> cond=0x7f7bfbffe5d0) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x7f7bfbffe5d0, mutex=0x7f7bfbffe5a8) at
> pthread_cond_wait.c:655 #3  0x00007f7c4480f969 in
> base::ConditionVariable::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c44812318
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123af
> in base::WaitableEvent::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816998
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817c7f in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 14 (Thread 0x7f7c00ff9700 (LWP 27167)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x7f7c00ff85f8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7c00ff85a8,
> cond=0x7f7c00ff85d0) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x7f7c00ff85d0, mutex=0x7f7c00ff85a8) at
> pthread_cond_wait.c:655 #3  0x00007f7c4480f969 in
> base::ConditionVariable::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c44812318
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123af
> in base::WaitableEvent::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816998
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817c7f in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 13 (Thread 0x7f7c017fa700 (LWP 27166)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x7f7c017f95f8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7c017f95a8,
> cond=0x7f7c017f95d0) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x7f7c017f95d0, mutex=0x7f7c017f95a8) at
> pthread_cond_wait.c:655 #3  0x00007f7c4480f969 in
> base::ConditionVariable::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c44812318
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123af
> in base::WaitableEvent::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816998
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817c7f in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 12 (Thread 0x7f7c037fe700 (LWP 27162)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7c037fd400, expected=0, futex_word=0x7f7c037fd5e8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7c037fd4a0, mutex=0x7f7c037fd598,
> cond=0x7f7c037fd5c0) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7c037fd5c0, mutex=0x7f7c037fd598,
> abstime=0x7f7c037fd4a0) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123f2
> in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816981
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 11 (Thread 0x7f7c14b0b700 (LWP 27160)):
> #0  0x00007f7c4afc63a9 in futex_reltimed_wait_cancelable (private=0,
> reltime=0x7f7c14b0a400, expected=0, futex_word=0x7f7c14b0a5e8) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1  0x00007f7c4afc63a9 in
> __pthread_cond_wait_common (abstime=0x7f7c14b0a4a0, mutex=0x7f7c14b0a598,
> cond=0x7f7c14b0a5c0) at pthread_cond_wait.c:533 #2  0x00007f7c4afc63a9 in
> __pthread_cond_timedwait (cond=0x7f7c14b0a5c0, mutex=0x7f7c14b0a598,
> abstime=0x7f7c14b0a4a0) at pthread_cond_wait.c:667 #3  0x00007f7c4480fa37
> in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c4481230a
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123f2
> in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c44816981
> in
> base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*
> ) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7 
> 0x00007f7c44817e61 in base::internal::SchedulerWorker::Thread::ThreadMain()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c44820c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #10
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 10 (Thread 0x7f7c1530c700 (LWP 27159)):
> #0  0x00007f7c4d6bdd01 in transcmp (p1=0x7f7c1530b2c0, p2=0x55ccaccb00e0) at
> dcigettext.c:290 #1  0x00007f7c4d7829bb in __GI___tfind (compar=<optimized
> out>, vrootp=<optimized out>, key=<optimized out>) at tsearch.c:388 #2 
> 0x00007f7c4d7829bb in __GI___tfind (key=key@entry=0x7f7c1530b2c0,
> vrootp=vrootp@entry=0x7f7c4d849c48 <root>,
> compar=compar@entry=0x7f7c4d6bdcf0 <transcmp>) at tsearch.c:372 #3 
> 0x00007f7c4d6bebaf in __dcigettext (domainname=0x7f7c4d80e3ba
> <_libc_intl_domainname> "libc", msgid1=0x7f7c4d80e809 "Bad file
> descriptor", msgid2=msgid2@entry=0x0, plural=plural@entry=0, n=n@entry=0,
> category=category@entry=5) at dcigettext.c:570 #4  0x00007f7c4d6bdaef in
> __GI___dcgettext (domainname=<optimized out>, msgid=<optimized out>,
> category=category@entry=5) at dcgettext.c:47 #5  0x00007f7c4d71516c in
> __GI___strerror_r (errnum=errnum@entry=9, buf=buf@entry=0x0,
> buflen=buflen@entry=0) at _strerror.c:71 #6  0x00007f7c4d71508f in strerror
> (errnum=9) at strerror.c:31
> #7  0x00007f7c3f994c21 in event_warn () at
> /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #8  0x00007f7c3f996588 in  ()
> at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #9  0x00007f7c3f98c329 in
> event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #10
> 0x00007f7c447e47cd in
> base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #11 0x00007f7c44803c8b
> in base::RunLoop::Run() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #12 0x00007f7c44825204
> in base::Thread::ThreadMain() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #13 0x00007f7c44820c81
> in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #14 0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #15
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 9 (Thread 0x7f7c15b0d700 (LWP 27158)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x7f7c15b0c588) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x7f7c15b0c538,
> cond=0x7f7c15b0c560) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x7f7c15b0c560, mutex=0x7f7c15b0c538) at
> pthread_cond_wait.c:655 #3  0x00007f7c4480f969 in
> base::ConditionVariable::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #4  0x00007f7c44812318
> in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #5  0x00007f7c448123af
> in base::WaitableEvent::Wait() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #6  0x00007f7c447e435f
> in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7  0x00007f7c44803c8b
> in base::RunLoop::Run() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8  0x00007f7c44825204
> in base::Thread::ThreadMain() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c44820c81
> in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #10 0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #11
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 8 (Thread 0x7f7c1630e700 (LWP 27157)):
> #0  0x00007f7c4d793a8b in __lll_lock_wait_private () at
> ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63 #1  0x00007f7c4d795814
> in __fprintf_chk (fp=0x7f7c4d84a8b0 <_IO_stdfile_2_lock>, flag=1,
> format=0x7f7c3f9ac848 "[%s] %s\n") at fprintf_chk.c:30 #2 
> 0x00007f7c3f994a5a in event_logv_ () at
> /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #3  0x00007f7c3f994c34 in
> event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #4 
> 0x00007f7c3f996588 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #5
>  0x00007f7c3f98c329 in event_base_loop () at
> /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #6  0x00007f7c447e4779 in
> base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #7  0x00007f7c44803c8b
> in base::RunLoop::Run() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8  0x00007f7c44825204
> in base::Thread::ThreadMain() () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c44820c81
> in base::(anonymous namespace)::ThreadFunc(void*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #10 0x00007f7c4afbffa3
> in start_thread (arg=<optimized out>) at pthread_create.c:486 #11
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 7 (Thread 0x7f7c25536700 (LWP 7609)):
> #0  0x00007f7c4a485e84 in g_mutex_unlock () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1  0x00007f7c4a43baa0 in
> g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 
> 0x00007f7c4a43c0e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 
> 0x00007f7c4a43c25c in g_main_context_iteration () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5  0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6  0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #9  0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 6 (Thread 0x7f7c25d37700 (LWP 7608)):
> #0  0x00007f7c4d777774 in __GI___libc_read (nbytes=16, buf=0x7f7c25d36480,
> fd=11) at ../sysdeps/unix/sysv/linux/read.c:26 #1  0x00007f7c4d777774 in
> __GI___libc_read (fd=11, buf=0x7f7c25d36480, nbytes=16) at
> ../sysdeps/unix/sysv/linux/read.c:24 #2  0x00007f7c4a481aa0 in  () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3  0x00007f7c4a43bc0f in
> g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 
> 0x00007f7c4a43c0e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 
> 0x00007f7c4a43c25c in g_main_context_iteration () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #6  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7  0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8  0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #11 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 5 (Thread 0x7f7c265e1700 (LWP 7607)):
> #0  0x00007ffdd25fdb82 in clock_gettime ()
> #1  0x00007f7c4d794326 in __GI___clock_gettime (clock_id=1,
> tp=0x7f7c265e0470) at ../sysdeps/unix/clock_gettime.c:115 #2 
> 0x00007f7c4dc8e971 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 
> 0x00007f7c4dc8d1a9 in QTimerInfoList::updateCurrentTime() () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4  0x00007f7c4dc8f4b5 in  () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5  0x00007f7c4a43bb11 in
> g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #6 
> 0x00007f7c4a43c0e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 
> 0x00007f7c4a43c25c in g_main_context_iteration () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #8  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9  0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #11
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #12
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #13 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 4 (Thread 0x7f7c277f2700 (LWP 7606)):
> #0  0x00007f7c4d777774 in __GI___libc_read (nbytes=16, buf=0x7f7c277f1450,
> fd=7) at ../sysdeps/unix/sysv/linux/read.c:26 #1  0x00007f7c4d777774 in
> __GI___libc_read (fd=7, buf=0x7f7c277f1450, nbytes=16) at
> ../sysdeps/unix/sysv/linux/read.c:24 #2  0x00007f7c4a481aa0 in  () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3  0x00007f7c4a43bc0f in
> g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 
> 0x00007f7c4a43c0e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 
> 0x00007f7c4a43c25c in g_main_context_iteration () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #6  0x00007f7c4dc8f04b in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7  0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8  0x00007f7c4da8b0d6 in
> QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 
> 0x00007f7c4d266545 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #10
> 0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #11
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #12 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 3 (Thread 0x7f7c2eab0700 (LWP 7605)):
> #0  0x00007f7c4afc5fbc in futex_wait_cancelable (private=0, expected=0,
> futex_word=0x55ccac885d28) at
> ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1  0x00007f7c4afc5fbc in
> __pthread_cond_wait_common (abstime=0x0, mutex=0x55ccac885cd8,
> cond=0x55ccac885d00) at pthread_cond_wait.c:502 #2  0x00007f7c4afc5fbc in
> __pthread_cond_wait (cond=0x55ccac885d00, mutex=0x55ccac885cd8) at
> pthread_cond_wait.c:655 #3  0x00007f7c2f056b42 in  () at
> /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4  0x00007f7c2f056707 in  () at
> /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5  0x00007f7c4afbffa3 in
> start_thread (arg=<optimized out>) at pthread_create.c:486 #6 
> 0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 2 (Thread 0x7f7c34b35700 (LWP 7604)):
> #0  0x00007f7c4d77bb49 in __GI___poll (fds=0x7f7c34b345b8, nfds=1,
> timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1  0x00007f7c4a22fcf7
> in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1 #2  0x00007f7c4a23191a in
> xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 
> 0x00007f7c351f8519 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #4
>  0x00007f7c4da94c77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 
> 0x00007f7c4afbffa3 in start_thread (arg=<optimized out>) at
> pthread_create.c:486 #6  0x00007f7c4d78680f in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
> 
> Thread 1 (Thread 0x7f7c358dbf00 (LWP 7560)):
> [KCrash Handler]
> #6  0x00000000000006b1 in  ()
> #7  0x00007f7c43c09d95 in content::RenderProcessHostImpl::ShutdownRequest()
> () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #8 
> 0x00007f7c434072a5 in
> content::mojom::RendererHostStubDispatch::Accept(content::mojom::RendererHo
> st*, mojo::Message*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #9  0x00007f7c4504dcbd
> in mojo::InterfaceEndpointClient::HandleValidatedMessage(mojo::Message*)
> [clone .part.122] () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
> #10 0x00007f7c45086959 in IPC::(anonymous
> namespace)::ChannelAssociatedGroupController::AcceptOnProxyThread(mojo::Mes
> sage) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #11
> 0x00007f7c4508643e in void
> base::internal::Invoker<base::internal::BindState<void (IPC::(anonymous
> namespace)::ChannelAssociatedGroupController::*)(mojo::Message),
> scoped_refptr<IPC::(anonymous
> namespace)::ChannelAssociatedGroupController>,
> base::internal::PassedWrapper<mojo::Message> >, void ()>::RunImpl<void
> (IPC::(anonymous namespace)::ChannelAssociatedGroupController::*
> const&)(mojo::Message), std::tuple<scoped_refptr<IPC::(anonymous
> namespace)::ChannelAssociatedGroupController>,
> base::internal::PassedWrapper<mojo::Message> > const&, 0ul, 1ul>(void
> (IPC::(anonymous namespace)::ChannelAssociatedGroupController::*
> const&)(mojo::Message), std::tuple<scoped_refptr<IPC::(anonymous
> namespace)::ChannelAssociatedGroupController>,
> base::internal::PassedWrapper<mojo::Message> > const&,
> std::integer_sequence<unsigned long, 0ul, 1ul>) [clone .isra.234] () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #12 0x00007f7c447c0688
> in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) ()
> at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #13
> 0x00007f7c447e110a in base::MessageLoop::RunTask(base::PendingTask*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #14 0x00007f7c447e1baf
> in base::MessageLoop::DeferOrRunPendingTask(base::PendingTask) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #15 0x00007f7c447e1d48
> in base::MessageLoop::DoWork() [clone .part.202] () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #16 0x00007f7c431ef58d
> in QtWebEngineCore::(anonymous
> namespace)::MessagePumpForUIQt::customEvent(QEvent*) () at
> /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5 #17 0x00007f7c4dc66e0b
> in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
> #18 0x00007f7c4e5b3491 in QApplicationPrivate::notify_helper(QObject*,
> QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #19
> 0x00007f7c4e5baac0 in QApplication::notify(QObject*, QEvent*) () at
> /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #20 0x00007f7c4dc3d479 in
> QCoreApplication::notifyInternal2(QObject*, QEvent*) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #21 0x00007f7c4dc4046b in
> QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) ()
> at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #22 0x00007f7c4dc8fa03 in  ()
> at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #23 0x00007f7c4a43bf2e in
> g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
> #24 0x00007f7c4a43c1c8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
> #25 0x00007f7c4a43c25c in g_main_context_iteration () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #26 0x00007f7c4dc8f033 in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #27 0x00007f7c3528b8d1 in 
> () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #28 0x00007f7c4dc3c14b in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #29 0x00007f7c4dc442b2 in
> QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
> #30 0x000055ccaabcf33b in main(int, char**) (argc=<optimized out>,
> argv=<optimized out>) at
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:116
> 
> -- System Information:
> Debian Release: buster/sid
>   APT prefers unstable-debug
>   APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1,
> 'experimental') Architecture: amd64 (x86_64)
> 
> Kernel: Linux 4.18.0-2-amd64 (SMP w/2 CPU cores)
> Kernel taint flags: TAINT_WARN
> Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) (ignored:
> LC_ALL set to en_GB.UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8) (ignored:
> LC_ALL set to en_GB.UTF-8) Shell: /bin/sh linked to /bin/dash
> Init: systemd (via /run/systemd/system)
> LSM: AppArmor: enabled
> 
> Versions of packages kmail depends on:
> ii  akonadi-server               4:18.08.3-4
> ii  kdepim-runtime               4:18.08.3-1
> ii  kio                          5.54.1-1
> ii  libc6                        2.28-7
> ii  libgcc1                      1:8.2.0-21
> ii  libgpgmepp6                  1.12.0-6
> ii  libkf5akonadiagentbase5      4:18.08.3-4
> ii  libkf5akonadicontact5        4:18.08.3-1
> ii  libkf5akonadicore5abi2       4:18.08.3-4
> ii  libkf5akonadimime5           4:18.08.3-1
> ii  libkf5akonadisearch-bin      4:18.08.3-1
> ii  libkf5akonadisearch-plugins  4:18.08.3-1
> ii  libkf5akonadisearchdebug5    4:18.08.3-1
> ii  libkf5akonadisearchpim5      4:18.08.3-1
> ii  libkf5akonadiwidgets5abi1    4:18.08.3-4
> ii  libkf5bookmarks5             5.54.0-1
> ii  libkf5calendarcore5abi2      4:18.08.3-1
> ii  libkf5calendarutils5         4:18.08.3-2
> ii  libkf5codecs5                5.54.0-1
> ii  libkf5completion5            5.54.0-1
> ii  libkf5configcore5            5.54.0-1
> ii  libkf5configgui5             5.54.0-1
> ii  libkf5configwidgets5         5.54.0-1
> ii  libkf5contacts5              4:18.08.3-1
> ii  libkf5coreaddons5            5.54.0-1
> ii  libkf5crash5                 5.54.0-1
> ii  libkf5dbusaddons5            5.54.0-1
> ii  libkf5followupreminder5      4:18.08.3-2
> ii  libkf5grantleetheme-plugins  18.08.3-1
> ii  libkf5gravatar5abi2          4:18.08.3-1
> ii  libkf5guiaddons5             5.54.0-1
> ii  libkf5i18n5                  5.54.0-1
> ii  libkf5iconthemes5            5.54.0-1
> ii  libkf5identitymanagement5    18.08.3-2
> ii  libkf5itemmodels5            5.54.0-1
> ii  libkf5itemviews5             5.54.0-1
> ii  libkf5jobwidgets5            5.54.0-1
> ii  libkf5kcmutils5              5.54.0-1
> ii  libkf5kiocore5               5.54.1-1
> ii  libkf5kiofilewidgets5        5.54.1-1
> ii  libkf5kiowidgets5            5.54.1-1
> ii  libkf5kontactinterface5      18.08.3-1
> ii  libkf5ksieveui5              4:18.08.3-2
> ii  libkf5libkdepim-plugins      4:18.08.3-2
> ii  libkf5libkdepim5             4:18.08.3-2
> ii  libkf5libkdepimakonadi5      4:18.08.3-2
> ii  libkf5libkleo5               4:18.08.3-2
> ii  libkf5mailcommon5abi2        4:18.08.3-2
> ii  libkf5mailtransport5         18.08.3-2
> ii  libkf5mailtransportakonadi5  18.08.3-2
> ii  libkf5messagecomposer5abi1   4:18.08.3-1
> ii  libkf5messagecore5abi1       4:18.08.3-1
> ii  libkf5messagelist5abi1       4:18.08.3-1
> ii  libkf5messageviewer5abi1     4:18.08.3-1
> ii  libkf5mime5abi1              18.08.3-1
> ii  libkf5mimetreeparser5abi1    4:18.08.3-1
> ii  libkf5notifications5         5.54.0-1
> ii  libkf5notifyconfig5          5.54.0-1
> ii  libkf5parts5                 5.54.0-1
> ii  libkf5pimcommon5abi2         4:18.08.3-2
> ii  libkf5pimcommonakonadi5abi1  4:18.08.3-2
> ii  libkf5pimtextedit5abi2       18.08.3-1
> ii  libkf5sendlater5             4:18.08.3-2
> ii  libkf5service-bin            5.54.0-1
> ii  libkf5service5               5.54.0-1
> ii  libkf5sonnetui5              5.54.0-1
> ii  libkf5templateparser5        4:18.08.3-1
> ii  libkf5textwidgets5           5.54.0-1
> ii  libkf5tnef5                  4:18.08.3-1
> ii  libkf5wallet-bin             5.54.0-1
> ii  libkf5wallet5                5.54.0-1
> ii  libkf5webengineviewer5abi1   4:18.08.3-1
> ii  libkf5widgetsaddons5         5.54.0-1
> ii  libkf5windowsystem5          5.54.0-1
> ii  libkf5xmlgui5                5.54.0-1
> ii  libqgpgme7                   1.12.0-6
> ii  libqt5core5a                 5.11.3+dfsg-5
> ii  libqt5dbus5                  5.11.3+dfsg-5
> ii  libqt5gui5                   5.11.3+dfsg-5
> ii  libqt5network5               5.11.3+dfsg-5
> ii  libqt5widgets5               5.11.3+dfsg-5
> ii  libqt5xml5                   5.11.3+dfsg-5
> ii  libstdc++6                   8.2.0-21
> 
> Versions of packages kmail recommends:
> ii  accountwizard                   4:18.08.3-1
> ii  gnupg                           2.2.12-1
> ii  kdepim-addons                   18.08.3-1
> ii  kdepim-themeeditors             4:18.08.3-1
> ii  mbox-importer                   4:18.08.3-1
> ii  pim-data-exporter               4:18.08.3-1
> ii  pim-sieve-editor                4:18.08.3-1
> ii  pinentry-gnome3 [pinentry-x11]  1.1.0-1+b1
> ii  pinentry-qt [pinentry-x11]      1.1.0-1+b1
> 
> Versions of packages kmail suggests:
> pn  clamav                                                     <none>
> ii  kaddressbook                                               4:18.08.3-1
> ii  kleopatra                                                  4:18.08.3-1
> pn  procmail                                                   <none>
> pn  spamassassin | bogofilter | spambayes | bsfilter | crm114  <none>
> 
> -- no debconf information

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