Application: kontact (5.4.3)

Qt Version: 5.7.1
Frameworks Version: 5.36.0
Operating System: Linux 4.13.5-100.fc25.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

I just start the application, whether it is Kontact or Akregator.

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f405ff26940 (LWP 4804))]

Thread 26 (Thread 0x7f3f44e36700 (LWP 4837)):
#0  0x00007f406a49d6b7 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007f406a49e08b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f406a49e27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f407954c6eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f40794fd68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f407935a5e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f407935e9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f3f45637700 (LWP 4836)):
#0  0x00007f4078745f3d in poll () at /lib64/libc.so.6
#1  0x00007f406a49e166 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f406a49e27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f407954c6eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f40794fd68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f407935a5e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f407935e9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f3f45e38700 (LWP 4835)):
#0  0x00007f4078745f3d in poll () at /lib64/libc.so.6
#1  0x00007f406a49e166 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f406a49e27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f407954c6eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f40794fd68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f407935a5e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f407935e9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f3f480e9700 (LWP 4834)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4078fe56ac in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /lib64/libstdc++.so.6
#2  0x00007f3f4c056546 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() () at /lib64/libQt5WebKit.so.5
#3  0x00007f3f4c056679 in  () at /lib64/libQt5WebKit.so.5
#4  0x00007f4078feb76f in  () at /lib64/libstdc++.so.6
#5  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f40017fa700 (LWP 4833)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4061c002f4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f4061c00339 in  () at /lib64/libQt5Script.so.5
#3  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f4001ffb700 (LWP 4830)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725cce79 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725cd5d7 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f40725ce3d0 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f40027fc700 (LWP 4829)):
#0  0x00007f404f4d2761 in do_pstream_read_write () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#1  0x00007f404f4d2ac9 in srb_callback () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#2  0x00007f404f4d334a in srbchannel_rwloop () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#3  0x00007f404f93a74c in pa_mainloop_dispatch () at /lib64/libpulse.so.0
#4  0x00007f404f93ab4c in pa_mainloop_iterate () at /lib64/libpulse.so.0
#5  0x00007f404f93abf0 in pa_mainloop_run () at /lib64/libpulse.so.0
#6  0x00007f404f948bd9 in thread () at /lib64/libpulse.so.0
#7  0x00007f404f4e31d8 in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#8  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f4002ffd700 (LWP 4828)):
#0  0x00007f406ef3f829 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725fb002 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725c2d4e in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f407259db41 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f40725ce896 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f40037fe700 (LWP 4827)):
#0  0x00007f407875fe4c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f4078761a84 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f406763e86e in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f406763ea64 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f40676431e8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f406762d18a in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f407259e152 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f40725ce896 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#12 0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f4003fff700 (LWP 4826)):
#0  0x00007f406ef3f829 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725fb002 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725c2d4e in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f407259db41 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f40725ce896 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f401cff9700 (LWP 4825)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4072d4fb8d in cc::SingleThreadTaskGraphRunner::Run() () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725ce3d0 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#5  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f401d7fa700 (LWP 4824)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725c2cbe in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725c2d74 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f407259db03 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f40725ce896 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f401dffb700 (LWP 4823)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725cce79 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725cd5d7 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f40725ce3d0 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f401e7fc700 (LWP 4822)):
#0  0x00007f4078741b6d in write () at /lib64/libc.so.6
#1  0x00007f40786c4a47 in _IO_new_file_write () at /lib64/libc.so.6
#2  0x00007f40786c5358 in __GI__IO_file_xsputn () at /lib64/libc.so.6
#3  0x00007f407869aa35 in buffered_vfprintf () at /lib64/libc.so.6
#4  0x00007f4078697be5 in vfprintf () at /lib64/libc.so.6
#5  0x00007f4078761ad9 in __fprintf_chk () at /lib64/libc.so.6
#6  0x00007f406763e86e in _warn_helper () at /lib64/libevent-2.0.so.5
#7  0x00007f406763ea64 in event_warn () at /lib64/libevent-2.0.so.5
#8  0x00007f40676431e8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#9  0x00007f406762d18a in event_base_loop () at /lib64/libevent-2.0.so.5
#10 0x00007f407259e0be in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f4071ebfef8 in content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#14 0x00007f4071ec03f3 in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#15 0x00007f40725ce960 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#16 0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#17 0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#18 0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f401effd700 (LWP 4821)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725c2cbe in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725c2d74 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f407259db03 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f4071ebfe48 in content::BrowserThreadImpl::CacheThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f4071ec045b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f40725ce960 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f401f7fe700 (LWP 4820)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725c2cbe in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725c2d74 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f407259db03 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f4071ebfd98 in content::BrowserThreadImpl::ProcessLauncherThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f4071ec0443 in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f40725ce960 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f401ffff700 (LWP 4819)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725c2cbe in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725c2d74 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f407259db03 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f4071ebfce8 in content::BrowserThreadImpl::FileUserBlockingThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f4071ec0433 in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f40725ce960 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f4040ff9700 (LWP 4818)):
#0  0x00007f407875fe4c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f4078761a84 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f406763e86e in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f406763ea64 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f40676431e8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f406762d18a in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f407259e0be in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f4071ebfc38 in content::BrowserThreadImpl::FileThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f4071ec0423 in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f40725ce960 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#14 0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f40417fa700 (LWP 4817)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725c2cbe in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725c2d74 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f407259db03 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f4071ebfb88 in content::BrowserThreadImpl::DBThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f4071ec0413 in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f40725ce960 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f4041ffb700 (LWP 4816)):
#0  0x00007f406ef3f829 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725fb002 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725d1a99 in base::PosixDynamicThreadPool::WaitForTask() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f40725d1f85 in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f40427fc700 (LWP 4815)):
#0  0x00007f406ef3f829 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725fb002 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725d1a99 in base::PosixDynamicThreadPool::WaitForTask() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f40725d1f85 in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f4042ffd700 (LWP 4814)):
#0  0x00007f406ef3f480 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f40725c2cbe in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f40725c2d74 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f407259db03 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f40725ce896 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f40437fe700 (LWP 4813)):
#0  0x00007f407875fe4c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f4078761a84 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f406763e86e in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f406763ea64 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f40676431e8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f406762d18a in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f407259e152 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f4072599b95 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f40725b67ea in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f40725ce896 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f40725ca9e2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#12 0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f404a433700 (LWP 4806)):
#0  0x00007f406a49b1b7 in g_source_iter_next () at /lib64/libglib-2.0.so.0
#1  0x00007f406a49d63b in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f406a49e08b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f406a49e27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f407954c6eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f40794fd68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f407935a5e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f407e370fb9 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#8  0x00007f407935e9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#10 0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f4055fc6700 (LWP 4805)):
#0  0x00007f4078745f3d in poll () at /lib64/libc.so.6
#1  0x00007f406d9a4d10 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f406d9a6aa9 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f405935cd69 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f407935e9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f406ef3973a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4078751e7f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f405ff26940 (LWP 4804)):
[KCrash Handler]
#6  0x00007f3f34a763e2 in c4_FormatB::ItemLenOffCol(int, int&, c4_Column*&) () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#7  0x00007f3f34a768d7 in c4_FormatB::GetOne(int, int&) () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#8  0x00007f3f34a76939 in c4_FormatS::Get(int, int&) () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#9  0x00007f3f34a789d6 in c4_Handler::GetBytes(int, c4_Bytes&, bool) () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#10 0x00007f3f34a85c88 in c4_Sequence::Get(int, int, c4_Bytes&) () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#11 0x00007f3f34a7e04b in c4_HashViewer::KeySame(int, c4_Cursor) const () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#12 0x00007f3f34a7e4c5 in c4_HashViewer::LookDict(int, c4_Cursor) const () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#13 0x00007f3f34a7e59e in c4_HashViewer::Lookup(c4_Cursor, int&) () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#14 0x00007f3f34a6feb3 in c4_CustomSeq::RestrictSearch(c4_Cursor, int&, int&) () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#15 0x00007f3f34a8429b in c4_View::Find(c4_RowRef const&, int) const () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#16 0x00007f3f34a89523 in Akregator::Backend::FeedStorageMK4Impl::findArticle(QString const&) const () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#17 0x00007f3f34a8995d in Akregator::Backend::FeedStorageMK4Impl::status(QString const&) const () at /usr/lib64/qt5/plugins/akregator_mk4storage_plugin.so
#18 0x00007f3f3519da2f in Akregator::Article::Private::Private(QString const&, Akregator::Feed*, Akregator::Backend::FeedStorage*) () at /lib64/libakregatorprivate.so.5
#19 0x00007f3f3519db54 in Akregator::Article::Article(QString const&, Akregator::Feed*) () at /lib64/libakregatorprivate.so.5
#20 0x00007f3f351a4fd1 in Akregator::Feed::loadArticles() () at /lib64/libakregatorprivate.so.5
#21 0x00007f3f351a5cb2 in Akregator::Feed::fromOPML(QDomElement, Akregator::Backend::Storage*) () at /lib64/libakregatorprivate.so.5
#22 0x00007f3f351abed3 in Akregator::FeedList::parseChildNodes(QDomNode&, Akregator::Folder*) () at /lib64/libakregatorprivate.so.5
#23 0x00007f3f351ac20e in Akregator::FeedList::parseChildNodes(QDomNode&, Akregator::Folder*) () at /lib64/libakregatorprivate.so.5
#24 0x00007f3f351acd93 in Akregator::FeedList::readFromOpml(QDomDocument const&) () at /lib64/libakregatorprivate.so.5
#25 0x00007f3f3563a8c7 in Akregator::LoadFeedListCommand::Private::handleDocument(QDomDocument const&) () at /usr/lib64/qt5/plugins/akregatorpart.so
#26 0x00007f3f3563b5ab in Akregator::LoadFeedListCommand::Private::doLoad() () at /usr/lib64/qt5/plugins/akregatorpart.so
#27 0x00007f3f3563b959 in Akregator::LoadFeedListCommand::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib64/qt5/plugins/akregatorpart.so
#28 0x00007f4079525721 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#29 0x00007f40795319e3 in QSingleShotTimer::timerEvent(QTimerEvent*) () at /lib64/libQt5Core.so.5
#30 0x00007f407952679b in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#31 0x00007f4079d3eecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#32 0x00007f4079d46671 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#33 0x00007f40794fe6fa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#34 0x00007f407954bceb in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#35 0x00007f407954c241 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#36 0x00007f406a49de52 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#37 0x00007f406a49e1d0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#38 0x00007f406a49e27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#39 0x00007f407954c6cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#40 0x00007f407982d438 in QGuiApplication::sync() () at /lib64/libQt5Gui.so.5
#41 0x00007f407e2dc8ef in QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::setKeyboardFocus() () at /lib64/libQt5WebEngineWidgets.so.5
#42 0x00007f4071ce0a48 in QtWebEngineCore::RenderWidgetHostViewQt::Focus() () at /lib64/libQt5WebEngineCore.so.5
#43 0x00007f4071d0bebb in QtWebEngineCore::WebContentsViewQt::Focus() () at /lib64/libQt5WebEngineCore.so.5
#44 0x00007f4071d01b2d in QtWebEngineCore::WebContentsAdapter::setContent(QByteArray const&, QString const&, QUrl const&) () at /lib64/libQt5WebEngineCore.so.5
#45 0x00007f407e2ce645 in QWebEnginePage::setHtml(QString const&, QUrl const&) () at /lib64/libQt5WebEngineWidgets.so.5
#46 0x00007f407de0dc53 in Kontact::MainWindow::paintAboutScreen(QString const&, QHash<QString, QVariant> const&) () at /lib64/libkontactprivate.so.5
#47 0x00007f407de0f1c4 in Kontact::MainWindow::initObject() () at /lib64/libkontactprivate.so.5
#48 0x00007f407de0f88c in Kontact::MainWindow::MainWindow() () at /lib64/libkontactprivate.so.5
#49 0x000055f9e5d0e2fa in KontactApp::activate(QStringList const&, QString const&) ()
#50 0x00007f407dbe58dd in KontactInterface::PimUniqueApplication::start(QStringList const&, bool) () at /lib64/libKF5KontactInterface.so.5
#51 0x000055f9e5d0d3b2 in main ()

The reporter indicates this bug may be a duplicate of or related to bug 116482.

Possible duplicates by query: bug 379496.

Reported using DrKonqi