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Bug#923490: kmail: random segfaults while idle



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::RendererHost*, 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::Message) () 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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