Bug 387431

Summary: Kontact crashes when clicking on email in the emails list
Product: [Applications] kontact Reporter: Laurent RINEAU <laurent.rineau>
Component: generalAssignee: kdepim bugs <kdepim-bugs>
Status: RESOLVED WORKSFORME    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Laurent RINEAU 2017-11-29 10:01:49 UTC 
Application: kontact (5.6.3)

Qt Version: 5.9.2
Frameworks Version: 5.40.0
Operating System: Linux 4.13.15-300.fc27.x86_64 x86_64
Distribution: "Fedora release 27 (Twenty Seven)"

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

I was just reading my mails. I think the crash occurs sometimes just when one clicks on an email in the emails list of a folder. Actually, in all my tabs, I display several folders at once. That may be relevent.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa04c264640 (LWP 2621))]

Thread 25 (Thread 0x7f9efbfff700 (LWP 3450)):
#0  0x00007fa0458be8bb in poll () at /lib64/libc.so.6
#1  0x00007fa035c23ed9 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fa035c23fec in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fa04672935b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fa0466d70ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fa0465288ba in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fa04652cb92 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#8  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f9f00c93700 (LWP 3144)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03eed8a15 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eed8ef7 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eed9c91 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f9f18f5f700 (LWP 2882)):
#0  0x00007fa0458be8bb in poll () at /lib64/libc.so.6
#1  0x00007fa035c23ed9 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fa035c23fec in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fa04672935b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fa0466d70ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fa0465288ba in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fa04652cb92 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#8  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f9f19760700 (LWP 2881)):
#0  0x00007fa0458b9e38 in read () at /lib64/libc.so.6
#1  0x00007fa035c680e0 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007fa035c239e8 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007fa035c23e80 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007fa035c23fec in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fa04672935b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fa0466d70ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fa0465288ba in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007fa04652cb92 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f9f1a601700 (LWP 2864)):
#0  0x00007fa035c69434 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007fa035c2342c in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007fa035c23e0b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fa035c23fec in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fa04672935b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fa0466d70ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fa0465288ba in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fa04652cb92 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f9fb5ffb700 (LWP 2833)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa02d756604 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007fa02d756649 in  () at /lib64/libQt5Script.so.5
#3  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f9fb67fc700 (LWP 2816)):
#0  0x00007fa0458d998c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007fa0458db764 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007fa032c693e0 in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007fa032c695a4 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007fa032c6dd40 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007fa032c588de in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007fa03eea9849 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007fa03eeda256 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#12 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f9fb6ffd700 (LWP 2815)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03eece6f9 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eece727 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eea924b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007fa03eeda256 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f9fb77fe700 (LWP 2814)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03eed8a15 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eed8ef7 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eed9c91 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f9fb7fff700 (LWP 2813)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03eed8a15 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eed8ef7 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eed9c91 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f9fe4ff9700 (LWP 2812)):
#0  0x00007fa01b4cbdd6 in do_write () at /usr/lib64/pulseaudio/libpulsecommon-11.1.so
#1  0x00007fa01b4ccf0d in do_pstream_read_write () at /usr/lib64/pulseaudio/libpulsecommon-11.1.so
#2  0x00007fa01b4cd2b9 in srb_callback () at /usr/lib64/pulseaudio/libpulsecommon-11.1.so
#3  0x00007fa01b4cdb3f in srbchannel_rwloop () at /usr/lib64/pulseaudio/libpulsecommon-11.1.so
#4  0x00007fa01b935378 in pa_mainloop_dispatch () at /lib64/libpulse.so.0
#5  0x00007fa01b93574e in pa_mainloop_iterate () at /lib64/libpulse.so.0
#6  0x00007fa01b9357d0 in pa_mainloop_run () at /lib64/libpulse.so.0
#7  0x00007fa01b943639 in thread () at /lib64/libpulse.so.0
#8  0x00007fa01b4ddac8 in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-11.1.so
#9  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f9fe57fa700 (LWP 2811)):
#0  0x00007fa03a78e13a in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03ef07462 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eece67e in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eea929b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007fa03eeda256 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f9fe5ffb700 (LWP 2810)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03f65b840 in cc::SingleThreadTaskGraphRunner::Run() () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eed9c91 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#5  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f9fe67fc700 (LWP 2809)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03eece6f9 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eece727 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eea924b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007fa03eeda256 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f9fe6ffd700 (LWP 2805)):
#0  0x00007fa0458d998c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007fa0458db764 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007fa032c693e0 in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007fa032c695a4 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007fa032c6dd40 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007fa032c588de in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007fa03eea9983 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007fa03e7aaac8 in content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007fa03e7ab07b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007fa03eeda308 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#14 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f9fe77fe700 (LWP 2804)):
#0  0x00007fa03a78e13a in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03ef07462 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eece67e in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eea929b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007fa03e7aaa18 in content::BrowserThreadImpl::CacheThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03e7ab06b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03eeda308 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f9fe7fff700 (LWP 2803)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03eece6f9 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eece727 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eea924b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007fa03e7aa968 in content::BrowserThreadImpl::ProcessLauncherThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03e7ab05b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03eeda308 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7fa004ff9700 (LWP 2802)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03eece6f9 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eece727 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eea924b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007fa03e7aa8b8 in content::BrowserThreadImpl::FileUserBlockingThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03e7ab04b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03eeda308 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fa0057fa700 (LWP 2801)):
#0  0x00007fa0458b9edb in write () at /lib64/libc.so.6
#1  0x00007fa04583442d in _IO_new_file_write () at /lib64/libc.so.6
#2  0x00007fa045834dcf in __GI__IO_file_xsputn () at /lib64/libc.so.6
#3  0x00007fa045807c47 in buffered_vfprintf () at /lib64/libc.so.6
#4  0x00007fa045804c86 in vfprintf () at /lib64/libc.so.6
#5  0x00007fa0458db7b6 in __fprintf_chk () at /lib64/libc.so.6
#6  0x00007fa032c693e0 in _warn_helper () at /lib64/libevent-2.0.so.5
#7  0x00007fa032c695a4 in event_warn () at /lib64/libevent-2.0.so.5
#8  0x00007fa032c6dd40 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#9  0x00007fa032c588de in event_base_loop () at /lib64/libevent-2.0.so.5
#10 0x00007fa03eea9849 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007fa03e7aa808 in content::BrowserThreadImpl::FileThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#14 0x00007fa03e7ab03b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#15 0x00007fa03eeda308 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#16 0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#17 0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#18 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fa005ffb700 (LWP 2800)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03eece6f9 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eece727 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eea924b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007fa03e7aa758 in content::BrowserThreadImpl::DBThreadRun(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03e7ab02b in content::BrowserThreadImpl::Run(base::RunLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03eeda308 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fa0077fe700 (LWP 2792)):
#0  0x00007fa03a78dc3b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa03eece6f9 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007fa03eece727 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007fa03eea924b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007fa03eeda256 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fa007fff700 (LWP 2790)):
#0  0x00007fa0458d998c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007fa0458db764 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007fa032c693e0 in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007fa032c695a4 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007fa032c6dd40 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007fa032c588de in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007fa03eea9849 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007fa03eea5b18 in base::MessageLoop::RunHandler() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007fa03eec255b in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007fa03eeda256 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007fa03eed635b in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#12 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fa016fd3700 (LWP 2674)):
#0  0x00007fa0458b9e38 in read () at /lib64/libc.so.6
#1  0x00007fa035c680e0 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007fa035c239e8 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007fa035c23e80 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007fa035c23fec in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fa04672935b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fa0466d70ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fa0465288ba in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007fa048501479 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#9  0x00007fa04652cb92 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fa022776700 (LWP 2668)):
#0  0x00007fa0458be8bb in poll () at /lib64/libc.so.6
#1  0x00007fa0393effe7 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007fa0393f1dda in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007fa024a8aa49 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007fa04652cb92 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fa03a787609 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fa0458cae6f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fa04c264640 (LWP 2621)):
[KCrash Handler]
#6  0x00007f9f1dce2655 in MessageList::Core::ModelInvariantRowMapper::modelInvariantIndexToModelIndexRow(MessageList::Core::ModelInvariantIndex*) () at /lib64/libKF5MessageList.so.5
#7  0x00007f9f1dd2defc in MessageList::Widget::viewMessageSelected(MessageList::Core::MessageItem*) () at /lib64/libKF5MessageList.so.5
#8  0x00007f9f1dcfec21 in MessageList::Core::View::slotSelectionChanged(QItemSelection const&, QItemSelection const&) () at /lib64/libKF5MessageList.so.5
#9  0x00007fa046700ce7 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#10 0x00007fa046691147 in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) () at /lib64/libQt5Core.so.5
#11 0x00007fa046698cb5 in QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) () at /lib64/libQt5Core.so.5
#12 0x00007fa046698fb0 in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) () at /lib64/libQt5Core.so.5
#13 0x00007fa0475f89d1 in QTreeViewPrivate::select(QModelIndex const&, QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) () at /lib64/libQt5Widgets.so.5
#14 0x00007fa0475f909a in QTreeView::setSelection(QRect const&, QFlags<QItemSelectionModel::SelectionFlag>) () at /lib64/libQt5Widgets.so.5
#15 0x00007fa047590059 in QAbstractItemView::mousePressEvent(QMouseEvent*) () at /lib64/libQt5Widgets.so.5
#16 0x00007fa0475fd42b in QTreeView::mousePressEvent(QMouseEvent*) () at /lib64/libQt5Widgets.so.5
#17 0x00007f9f1dd0024c in MessageList::Core::View::mousePressEvent(QMouseEvent*) () at /lib64/libKF5MessageList.so.5
#18 0x00007fa04738072f in QWidget::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#19 0x00007fa047420d5e in QFrame::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#20 0x00007fa0475950bb in QAbstractItemView::viewportEvent(QEvent*) () at /lib64/libQt5Widgets.so.5
#21 0x00007fa0475fce8c in QTreeView::viewportEvent(QEvent*) () at /lib64/libQt5Widgets.so.5
#22 0x00007fa0466d80fc in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#23 0x00007fa047341685 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#24 0x00007fa04734944f in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#25 0x00007fa0466d8367 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#26 0x00007fa047348422 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /lib64/libQt5Widgets.so.5
#27 0x00007fa04739abcb in QWidgetWindow::handleMouseEvent(QMouseEvent*) () at /lib64/libQt5Widgets.so.5
#28 0x00007fa04739d26f in QWidgetWindow::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#29 0x00007fa0473416ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#30 0x00007fa047348ef4 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#31 0x00007fa0466d8367 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#32 0x00007fa046c28753 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /lib64/libQt5Gui.so.5
#33 0x00007fa046c2a335 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /lib64/libQt5Gui.so.5
#34 0x00007fa046c041ab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Gui.so.5
#35 0x00007fa024aed7d0 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5XcbQpa.so.5
#36 0x00007fa035c23bb7 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#37 0x00007fa035c23f60 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#38 0x00007fa035c23fec in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#39 0x00007fa04672933f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#40 0x00007fa0466d70ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#41 0x00007fa0466df744 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#42 0x0000561f052a160d in main ()

The reporter indicates this bug may be a duplicate of or related to bug 328222.

Possible duplicates by query: bug 328222.

Reported using DrKonqi
Comment 1 Laurent RINEAU 2017-11-29 10:03:58 UTC 
That is indeed very similar to old bug #328222, where I posted a comment: https://bugs.kde.org/show_bug.cgi?id=328222#c4

But it is now with a recent version of Kontact/Kmail, and it occurs several times a day.
Comment 2 Justin Zobel 2020-12-17 05:32:34 UTC 
Thank you for the crash report.

As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved.

I have set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved/worksforme" when you respond, thank you.
Comment 3 Laurent RINEAU 2020-12-17 08:17:50 UTC 
That was indeed long ago. It works very well, now.