[kontact] [Bug 385335] New: kmail : segfault when quickly erase messages

muny bugzilla_noreply at kde.org
Tue Oct 3 17:25:57 BST 2017 

https://bugs.kde.org/show_bug.cgi?id=385335

            Bug ID: 385335
           Summary: kmail : segfault when quickly erase messages
           Product: kontact
           Version: 5.5.1
          Platform: Fedora RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: muny at equilibriste.org
  Target Milestone: ---

Application: kontact (5.5.1)

Qt Version: 5.7.1
Frameworks Version: 5.36.0
Operating System: Linux 4.12.14-300.fc26.x86_64 x86_64
Distribution: "Fedora release 26 (Twenty Six)"

-- Information about the crash:
- What I was doing when the application crashed:
Erase multiples messages one by one, quickly
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 0x7f5291176f00 (LWP 14528))]

Thread 26 (Thread 0x7f517941f700 (LWP 14561)):
#0  0x00007f529ac20acd in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007f529ac2149b in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f529ac2167c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f52aa016e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f52a9fc760a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f52a9e1f99a in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f52a9e23c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f5179c20700 (LWP 14560)):
#0  0x00007f529ac20abc in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007f529ac2149b in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f529ac2167c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f52aa016e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f52a9fc760a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f52a9e1f99a in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f52a9e23c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f517a421700 (LWP 14559)):
#0  0x00007f52a91feacd in poll () at /lib64/libc.so.6
#1  0x00007f529ac21569 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f529ac2167c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f52aa016e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f52a9fc760a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f52a9e1f99a in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f52a9e23c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f5225ffb700 (LWP 14558)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52931b5534 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at
/lib64/libQt5Script.so.5
#2  0x00007f52931b5579 in  () at /lib64/libQt5Script.so.5
#3  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#4  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f52267fc700 (LWP 14557)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2da2725 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2da2c07 in base::SequencedWorkerPool::Worker::Run() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2da39a1 in base::SimpleThread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f5226ffd700 (LWP 14556)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2da2725 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2da2c07 in base::SequencedWorkerPool::Worker::Run() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2da39a1 in base::SimpleThread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f52277fe700 (LWP 14553)):
#0  0x00007f52a91feacd in poll () at /lib64/libc.so.6
#1  0x00007f5284a88b71 in poll_func () at /lib64/libpulse.so.0
#2  0x00007f5284a7a530 in pa_mainloop_poll () at /lib64/libpulse.so.0
#3  0x00007f5284a7abc0 in pa_mainloop_iterate () at /lib64/libpulse.so.0
#4  0x00007f5284a7ac50 in pa_mainloop_run () at /lib64/libpulse.so.0
#5  0x00007f5284a88ab9 in thread () at /lib64/libpulse.so.0
#6  0x00007f5284623078 in internal_thread_func () at
/usr/lib64/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f5227fff700 (LWP 14552)):
#0  0x00007f52a91fa22d in write () at /lib64/libc.so.6
#1  0x00007f52a917822d in _IO_new_file_write () at /lib64/libc.so.6
#2  0x00007f52a9178bcf in __GI__IO_file_xsputn () at /lib64/libc.so.6
#3  0x00007f52a914c747 in buffered_vfprintf () at /lib64/libc.so.6
#4  0x00007f52a9149786 in vfprintf () at /lib64/libc.so.6
#5  0x00007f52a921b2d6 in __fprintf_chk () at /lib64/libc.so.6
#6  0x00007f5298258880 in _warn_helper () at /lib64/libevent-2.0.so.5
#7  0x00007f5298258a44 in event_warn () at /lib64/libevent-2.0.so.5
#8  0x00007f529825d1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#9  0x00007f5298247dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#10 0x00007f52a2d735ad in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#11 0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#12 0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#13 0x00007f52a2da3f66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#14 0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#15 0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#16 0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f5244ff9700 (LWP 14551)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2d98409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2d98437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2d72f5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f52a2da3f66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f52457fa700 (LWP 14550)):
#0  0x00007f529f6ebe0a in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2dd1172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2d9838e in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2d72fab in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f52a2da3f66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f5245ffb700 (LWP 14549)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a3520ea0 in cc::SingleThreadTaskGraphRunner::Run() () at
/lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2da39a1 in base::SimpleThread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#5  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f52467fc700 (LWP 14548)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2da2725 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2da2c07 in base::SequencedWorkerPool::Worker::Run() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2da39a1 in base::SimpleThread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f5246ffd700 (LWP 14547)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2d98409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2d98437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2d72f5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f52a2da3f66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f52477fe700 (LWP 14546)):
#0  0x00007f52a92194bc in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f52a921b284 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f5298258880 in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f5298258a44 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f529825d1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f5298247dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f52a2d73693 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f52a2674a78 in
content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f52a267502b in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#11 0x00007f52a2da4018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#12 0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#13 0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#14 0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f5247fff700 (LWP 14545)):
#0  0x00007f529f6ebe0a in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2dd1172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2d9838e in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2d72fab in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f52a26749c8 in
content::BrowserThreadImpl::CacheThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a267501b in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f52a2da4018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#11 0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f5268dec700 (LWP 14544)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2d98409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2d98437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2d72f5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f52a2674918 in
content::BrowserThreadImpl::ProcessLauncherThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a267500b in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f52a2da4018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#11 0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f52695ed700 (LWP 14543)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2d98409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2d98437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2d72f5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f52a2674868 in
content::BrowserThreadImpl::FileUserBlockingThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a2674ffb in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f52a2da4018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#11 0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f5269dee700 (LWP 14542)):
#0  0x00007f52a92194bc in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f52a921b284 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f5298258880 in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f5298258a44 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f529825d1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f5298247dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f52a2d735ad in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f52a26747b8 in
content::BrowserThreadImpl::FileThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f52a2674feb in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#11 0x00007f52a2da4018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#12 0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#13 0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#14 0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f526a5ef700 (LWP 14541)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2d98409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2d98437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2d72f5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f52a2674708 in
content::BrowserThreadImpl::DBThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a2674fdb in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f52a2da4018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#11 0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f526adf0700 (LWP 14540)):
#0  0x00007f529f6ebe0a in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2dd1172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2da7229 in base::PosixDynamicThreadPool::WaitForTask() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2da778b in base::(anonymous
namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f526b5f1700 (LWP 14539)):
#0  0x00007f529f6ebe0a in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2dd1172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2da7229 in base::PosixDynamicThreadPool::WaitForTask() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2da778b in base::(anonymous
namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f526bdf2700 (LWP 14538)):
#0  0x00007f529f6eb90b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f52a2d98409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f52a2d98437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f52a2d72f5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f52a2da3f66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f52789c6700 (LWP 14537)):
#0  0x00007f52a912adeb in __dcigettext () at /lib64/libc.so.6
#1  0x00007f52a918de58 in strerror_r () at /lib64/libc.so.6
#2  0x00007f52a918dd7f in strerror () at /lib64/libc.so.6
#3  0x00007f5298258a31 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f529825d1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f5298247dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f52a2d73559 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f52a2d6f828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f52a2d8c26b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f52a2da3f66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f52a2da006b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#11 0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#12 0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f527b3e7700 (LWP 14530)):
#0  0x00007f52a91feacd in poll () at /lib64/libc.so.6
#1  0x00007f529ac21569 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f529ac2167c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f52aa016e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f52a9fc760a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f52a9e1f99a in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f52aedf7a39 in QDBusConnectionManager::run() () at
/lib64/libQt5DBus.so.5
#7  0x00007f52a9e23c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f5286f11700 (LWP 14529)):
#0  0x00007f52a91feacd in poll () at /lib64/libc.so.6
#1  0x00007f529e156c97 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f529e158a8a in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f528a4c9ba9 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f52a9e23c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#5  0x00007f529f6e536d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f52a920abbf in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f5291176f00 (LWP 14528)):
[KCrash Handler]
#6  0x00007f517c526744 in
MessageViewer::ViewerPrivate::renderAttachments(KMime::Content*, QColor const&)
const () at /lib64/libKF5MessageViewer.so.5
#7  0x00007f517c526c14 in
MessageViewer::ViewerPrivate::renderAttachments(KMime::Content*, QColor const&)
const () at /lib64/libKF5MessageViewer.so.5
#8  0x00007f517c526958 in
MessageViewer::ViewerPrivate::renderAttachments(KMime::Content*, QColor const&)
const () at /lib64/libKF5MessageViewer.so.5
#9  0x00007f517c526958 in
MessageViewer::ViewerPrivate::renderAttachments(KMime::Content*, QColor const&)
const () at /lib64/libKF5MessageViewer.so.5
#10 0x00007f517c526c14 in
MessageViewer::ViewerPrivate::renderAttachments(KMime::Content*, QColor const&)
const () at /lib64/libKF5MessageViewer.so.5
#11 0x00007f517c526958 in
MessageViewer::ViewerPrivate::renderAttachments(KMime::Content*, QColor const&)
const () at /lib64/libKF5MessageViewer.so.5
#12 0x00007f517c52d57f in
MessageViewer::ViewerPrivate::attachmentInjectionHtml() () at
/lib64/libKF5MessageViewer.so.5
#13 0x00007f517c52eed2 in MessageViewer::ViewerPrivate::displayMessage() () at
/lib64/libKF5MessageViewer.so.5
#14 0x00007f517c52f799 in MessageViewer::ViewerPrivate::updateReaderWin() () at
/lib64/libKF5MessageViewer.so.5
#15 0x00007f52a9fefb97 in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib64/libQt5Core.so.5
#16 0x00007f52a9ffbbb8 in QTimer::timerEvent(QTimerEvent*) () at
/lib64/libQt5Core.so.5
#17 0x00007f52a9ff088b in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#18 0x00007f52aa8135dc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib64/libQt5Widgets.so.5
#19 0x00007f52aa81ac74 in QApplication::notify(QObject*, QEvent*) () at
/lib64/libQt5Widgets.so.5
#20 0x00007f52a9fc8627 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib64/libQt5Core.so.5
#21 0x00007f52aa01648b in QTimerInfoList::activateTimers() () at
/lib64/libQt5Core.so.5
#22 0x00007f52aa0169d1 in timerSourceDispatch(_GSource*, int (*)(void*), void*)
() at /lib64/libQt5Core.so.5
#23 0x00007f529ac21247 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#24 0x00007f529ac215e8 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#25 0x00007f529ac2167c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#26 0x00007f52aa016e4f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#27 0x00007f52a9fc760a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#28 0x00007f52a9fcf27c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#29 0x0000563470d96295 in main ()

Reported using DrKonqi

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