Bug 388494

Summary: KMail crashed
Product: [Applications] kmail2 Reporter: Reinhard Auner <reinhardauner>
Component: generalAssignee: kdepim bugs <pim-bugs-null>
Status: RESOLVED UPSTREAM    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 5.5.2   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Reinhard Auner 2018-01-03 14:34:13 UTC 
Application: kmail (5.5.2)

Qt Version: 5.6.2
Frameworks Version: 5.32.0
Operating System: Linux 4.4.103-36-default x86_64
Distribution: "openSUSE Leap 42.3"

-- Information about the crash:
- What I was doing when the application crashed:
I wanted to copy an e-mail address from a website into KMail, the application just crashed without warning.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2b90880940 (LWP 13118))]

Thread 20 (Thread 0x7f2b117fa700 (LWP 13159)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7a882160 in mojo::system::Waiter::Wait(unsigned long, unsigned int*) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7a86fc0b in mojo::system::Core::WaitManyInternal(unsigned int const*, unsigned int const*, unsigned int, unsigned long, unsigned int*, mojo::system::HandleSignalsState*) () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7a86fe85 in mojo::system::Core::WaitMany(mojo::system::UserPointer<unsigned int const>, mojo::system::UserPointer<unsigned int const>, unsigned int, unsigned long, mojo::system::UserPointer<unsigned int>, mojo::system::UserPointer<MojoHandleSignalsState>) () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7a86c777 in MojoWaitMany () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b7c016a4a in mojo::common::MessagePumpMojo::DoInternalWork(mojo::common::MessagePumpMojo::RunState const&, bool) () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f2b7c016d61 in mojo::common::MessagePumpMojo::DoRunLoop(mojo::common::MessagePumpMojo::RunState*, base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7c016e52 in mojo::common::MessagePumpMojo::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#13 0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f2b11ffb700 (LWP 13158)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7aa265d9 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa26d9d in base::SequencedWorkerPool::Worker::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7aa275c0 in base::SimpleThread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f2b127fc700 (LWP 13157)):
#0  0x00007f2b8d99f20d in poll () at /lib64/libc.so.6
#1  0x00007f2b72fe20a1 in  () at /usr/lib64/libpulse.so.0
#2  0x00007f2b72fd376c in pa_mainloop_poll () at /usr/lib64/libpulse.so.0
#3  0x00007f2b72fd3dde in pa_mainloop_iterate () at /usr/lib64/libpulse.so.0
#4  0x00007f2b72fd3e90 in pa_mainloop_run () at /usr/lib64/libpulse.so.0
#5  0x00007f2b72fe2006 in  () at /usr/lib64/libpulse.so.0
#6  0x00007f2b6c42d408 in  () at /usr/lib64/pulseaudio/libpulsecommon-9.0.so
#7  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f2b12ffd700 (LWP 13156)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7aa1d10f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa1d1e4 in base::WaitableEvent::Wait() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7a9ffa7b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f2b137fe700 (LWP 13155)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7a422dc9 in cc::TaskGraphRunner::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa275c0 in base::SimpleThread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#5  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f2b13fff700 (LWP 13154)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7aa1d10f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa1d1e4 in base::WaitableEvent::Wait() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7a9ffa7b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f2b34ff9700 (LWP 13153)):
#0  0x00007f2b8d9b3eab in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f2b8d9b5a46 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f2b719f6fdf in  () at /usr/lib64/libevent-2.0.so.5
#3  0x00007f2b719f71b7 in event_warn () at /usr/lib64/libevent-2.0.so.5
#4  0x00007f2b719fb468 in  () at /usr/lib64/libevent-2.0.so.5
#5  0x00007f2b719e7477 in event_base_loop () at /usr/lib64/libevent-2.0.so.5
#6  0x00007f2b7a9dcc9e in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f2b7a0b50e5 in content::BrowserThreadImpl::IOThreadRun(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f2b7a0b51fb in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f2b357fa700 (LWP 13152)):
#0  0x00007f2b8d9b3eab in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f2b8d9b5a46 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f2b719f6fdf in  () at /usr/lib64/libevent-2.0.so.5
#3  0x00007f2b719f71b7 in event_warn () at /usr/lib64/libevent-2.0.so.5
#4  0x00007f2b719fb468 in  () at /usr/lib64/libevent-2.0.so.5
#5  0x00007f2b719e7477 in event_base_loop () at /usr/lib64/libevent-2.0.so.5
#6  0x00007f2b7a9dcc9e in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f2b7a0b5065 in content::BrowserThreadImpl::CacheThreadRun(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f2b7a0b525b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f2b35ffb700 (LWP 13151)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7aa1d10f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa1d1e4 in base::WaitableEvent::Wait() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7a9ffa7b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f2b7a0b4fe5 in content::BrowserThreadImpl::ProcessLauncherThreadRun(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7a0b524b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f2b367fc700 (LWP 13150)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7aa1d10f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa1d1e4 in base::WaitableEvent::Wait() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7a9ffa7b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f2b7a0b4f65 in content::BrowserThreadImpl::FileUserBlockingThreadRun(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7a0b523b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f2b36ffd700 (LWP 13149)):
#0  0x00007f2b8d99b2ed in write () at /lib64/libc.so.6
#1  0x00007f2b8d931840 in _IO_new_file_write () at /lib64/libc.so.6
#2  0x00007f2b8d930e63 in new_do_write () at /lib64/libc.so.6
#3  0x00007f2b8d931e46 in __GI__IO_file_xsputn () at /lib64/libc.so.6
#4  0x00007f2b8d908b1b in buffered_vfprintf () at /lib64/libc.so.6
#5  0x00007f2b8d905e8e in vfprintf () at /lib64/libc.so.6
#6  0x00007f2b8d9b5aa3 in __fprintf_chk () at /lib64/libc.so.6
#7  0x00007f2b719f6fdf in  () at /usr/lib64/libevent-2.0.so.5
#8  0x00007f2b719f71b7 in event_warn () at /usr/lib64/libevent-2.0.so.5
#9  0x00007f2b719fb468 in  () at /usr/lib64/libevent-2.0.so.5
#10 0x00007f2b719e7477 in event_base_loop () at /usr/lib64/libevent-2.0.so.5
#11 0x00007f2b7a9dcc9e in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#14 0x00007f2b7a0b4ee5 in content::BrowserThreadImpl::FileThreadRun(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#15 0x00007f2b7a0b522b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#16 0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#17 0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#18 0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#19 0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f2b377fe700 (LWP 13148)):
#0  0x00007f2b83653468 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7aa1c9b2 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa2a3f6 in base::PosixDynamicThreadPool::WaitForTask() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7aa2a5e6 in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f2b37fff700 (LWP 13147)):
#0  0x00007f2b83653468 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7aa1c9b2 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa2a3f6 in base::PosixDynamicThreadPool::WaitForTask() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7aa2a5e6 in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f2b40934700 (LWP 13146)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7aa1d10f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa1d1e4 in base::WaitableEvent::Wait() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7a9ffa7b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f2b7a0b4e65 in content::BrowserThreadImpl::DBThreadRun(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7a0b521b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f2b41135700 (LWP 13145)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b7aa1d10f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f2b7aa1d1e4 in base::WaitableEvent::Wait() () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f2b7a9ffa7b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f2b41b44700 (LWP 13144)):
#0  0x00007f2b8d9b3eab in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f2b8d9b5a46 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f2b719f6fdf in  () at /usr/lib64/libevent-2.0.so.5
#3  0x00007f2b719f71b7 in event_warn () at /usr/lib64/libevent-2.0.so.5
#4  0x00007f2b719fb468 in  () at /usr/lib64/libevent-2.0.so.5
#5  0x00007f2b719e7477 in event_base_loop () at /usr/lib64/libevent-2.0.so.5
#6  0x00007f2b7a9dcc9e in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f2b7aa10062 in base::RunLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f2b7a9fbb05 in base::MessageLoop::Run() () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f2b7aa27940 in base::Thread::ThreadMain() () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f2b7aa2431e in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f2b5358d700 (LWP 13122)):
#0  0x00007f2b8d99f20d in poll () at /lib64/libc.so.6
#1  0x00007f2b82e2a314 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f2b82e2a42c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f2b8e2b81ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2b440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f2b8e265bfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f2b5358cc90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:206
#5  0x00007f2b8e0a0f5a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f2b8e0a5a29 in QThreadPrivate::start(void*) (arg=0x18c6ce0) at thread/qthread_unix.cpp:365
#7  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f2b547a5700 (LWP 13121)):
#0  0x00007f2b82e276af in  () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f2b82e29cef in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f2b82e2a2a8 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f2b82e2a42c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f2b8e2b81ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2b4c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2b8e265bfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f2b547a4c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:206
#6  0x00007f2b8e0a0f5a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f2b8c925295 in  () at /usr/lib64/libQt5DBus.so.5
#8  0x00007f2b8e0a5a29 in QThreadPrivate::start(void*) (arg=0x7f2b8cb8ece0) at thread/qthread_unix.cpp:365
#9  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f2b5566d700 (LWP 13120)):
#0  0x00007f2b836530bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2b60bccb4b in  () at /usr/lib64/dri/r600_dri.so
#2  0x00007f2b60bcc8c7 in  () at /usr/lib64/dri/r600_dri.so
#3  0x00007f2b8364e744 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f2b8d9a7aad in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f2b90880940 (LWP 13118)):
[KCrash Handler]
#6  0x00007f2b795e0a1b in QtWebEngineCore::BrowserContextAdapter::visitedLinksPolicy() const (this=0x3019f2f00) at /usr/src/debug/qtwebengine-opensource-src-5.6.2/src/core/browser_context_adapter.cpp:317
#7  0x00007f2b795e0a99 in QtWebEngineCore::BrowserContextAdapter::trackVisitedLinks() const (this=<optimized out>) at /usr/src/debug/qtwebengine-opensource-src-5.6.2/src/core/browser_context_adapter.cpp:326
#8  0x00007f2b79622ab7 in QtWebEngineCore::WebContentsDelegateQt::DidNavigateAnyFrame(content::RenderFrameHost*, content::LoadCommittedDetails const&, content::FrameNavigateParams const&) (this=0x1a9c670, render_frame_host=<optimized out>, details=..., params=...) at /usr/src/debug/qtwebengine-opensource-src-5.6.2/src/core/web_contents_delegate_qt.cpp:351
#9  0x00007f2b7a1d78b6 in content::WebContentsImpl::DidNavigateAnyFramePostCommit(content::RenderFrameHostImpl*, content::LoadCommittedDetails const&, FrameHostMsg_DidCommitProvisionalLoad_Params const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f2b7a2b38e8 in content::NavigatorImpl::DidNavigate(content::RenderFrameHostImpl*, FrameHostMsg_DidCommitProvisionalLoad_Params const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f2b7a0e18f1 in content::RenderFrameHostImpl::OnDidCommitProvisionalLoad(IPC::Message const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f2b7a0e8d61 in content::RenderFrameHostImpl::OnMessageReceived(IPC::Message const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f2b7a15bbf1 in content::RenderProcessHostImpl::OnMessageReceived(IPC::Message const&) [clone .part.235] () at /usr/lib64/libQt5WebEngineCore.so.5
#14 0x00007f2b7aa7d792 in IPC::ChannelProxy::Context::OnDispatchMessage(IPC::Message const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#15 0x00007f2b7aa4c76e in base::debug::TaskAnnotator::RunTask(char const*, char const*, base::PendingTask const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#16 0x00007f2b7a9fc624 in base::MessageLoop::RunTask(base::PendingTask const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#17 0x00007f2b7a9fc901 in base::MessageLoop::DeferOrRunPendingTask(base::PendingTask const&) () at /usr/lib64/libQt5WebEngineCore.so.5
#18 0x00007f2b7a9ff633 in base::MessageLoop::DoWork() () at /usr/lib64/libQt5WebEngineCore.so.5
#19 0x00007f2b796256b9 in WebEngineContext::destroy() (this=0x19d1ca0) at /usr/src/debug/qtwebengine-opensource-src-5.6.2/src/core/web_engine_context.cpp:194
#20 0x00007f2b7962580d in (anonymous namespace)::destroyContext() () at /usr/src/debug/qtwebengine-opensource-src-5.6.2/src/core/web_engine_context.cpp:104
#21 0x00007f2b8e2670b4 in qt_call_post_routines() () at kernel/qcoreapplication.cpp:298
#22 0x00007f2b8ef67db6 in QApplication::~QApplication() (this=0x7ffe39ce4fb0, __in_chrg=<optimized out>) at kernel/qapplication.cpp:825
#23 0x0000000000403a18 in KMailApplication::~KMailApplication (this=0x7ffe39ce4fb0, __in_chrg=<optimized out>) at /usr/src/debug/kmail-17.04.2/src/main.cpp:48
#24 0x0000000000403a18 in main(int, char**) (argc=2, argv=0x7ffe39ce51e8) at /usr/src/debug/kmail-17.04.2/src/main.cpp:164

Reported using DrKonqi
Comment 1 Christoph Feck 2018-01-17 22:11:02 UTC 
Crash is in Qt5WebEngine. If this is reproducible, please report this issue directly to Qt developers via https://bugreports.qt.io/