Bug 380264

Summary: KMail crashes when replying to email
Product: [Applications] kontact Reporter: John Perry <john.perry>
Component: generalAssignee: kdepim bugs <kdepim-bugs>
Status: RESOLVED WORKSFORME    
Severity: crash CC: justin.zobel
Priority: NOR Keywords: drkonqi
Version: 5.4.3   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description John Perry 2017-05-28 06:00:10 UTC 
Application: kontact (5.4.3)

Qt Version: 5.7.1
Frameworks Version: 5.34.0
Operating System: Linux 4.10.17-200.fc25.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

I simply try to reply to an email. The application crashes reliably whenever I try to replay to that email.

- Unusual behavior I noticed:

The content of some emails is not displayed in the main kmail window. When I clikc the "Reply" button from this window, kmail crashes. However, if I double-click on the email, thereby opening it in a separate window, the text is displayed and kmail does not crash when I press "Reply" in the new window. I can compose a reply and the message is successfully sent. Upon returning to the main window, message content is still not displayed, and and kmail/Kontact crashes when I click the "Reply" button.

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
84	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f1902dc6940 (LWP 2062))]

Thread 30 (Thread 0x7f17d56bd700 (LWP 2162)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1915a15e89 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a164d9 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f1915a16690 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1911be86ca in start_thread (arg=0x7f17d56bd700) at pthread_create.c:333
#6  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 29 (Thread 0x7f17d5ebe700 (LWP 2157)):
#0  0x00007f191a85b01d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f190d14d166 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f190d14d27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f191b6616eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f191b61268a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f191b46f5e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f191b4739ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f1911be86ca in start_thread (arg=0x7f17d5ebe700) at pthread_create.c:333
#8  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 28 (Thread 0x7f17d6e9a700 (LWP 2136)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1915a15e89 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a164d9 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f1915a16690 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1911be86ca in start_thread (arg=0x7f17d6e9a700) at pthread_create.c:333
#6  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 27 (Thread 0x7f17f4e2c700 (LWP 2116)):
#0  0x00007f191a85b01d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f190d14d166 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f190d14d27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f191b6616eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f191b61268a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f191b46f5e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f191b4739ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f1911be86ca in start_thread (arg=0x7f17f4e2c700) at pthread_create.c:333
#8  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 26 (Thread 0x7f17f562d700 (LWP 2110)):
#0  0x00007f190d192894 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f190d14c690 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f190d14d08b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f190d14d27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f191b6616eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f191b61268a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f191b46f5e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f191b4739ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f1911be86ca in start_thread (arg=0x7f17f562d700) at pthread_create.c:333
#9  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 25 (Thread 0x7f17f5ea8700 (LWP 2107)):
#0  0x00007f191a85b01d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f190d14d166 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f190d14d27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f191b6616eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f191b61268a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f191b46f5e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f191b4739ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f1911be86ca in start_thread (arg=0x7f17f5ea8700) at pthread_create.c:333
#8  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 24 (Thread 0x7f18bcff9700 (LWP 2094)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1904ca02f4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f1904ca0339 in  () at /lib64/libQt5Script.so.5
#3  0x00007f1911be86ca in start_thread (arg=0x7f18bcff9700) at pthread_create.c:333
#4  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 23 (Thread 0x7f18bd7fa700 (LWP 2092)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1915a15e89 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a164d9 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f1915a16690 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1911be86ca in start_thread (arg=0x7f18bd7fa700) at pthread_create.c:333
#6  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 22 (Thread 0x7f18bdffb700 (LWP 2091)):
#0  0x00007f18f5b31acc in srb_callback () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#1  0x00007f18f5b3234a in srbchannel_rwloop () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#2  0x00007f18f5f9974c in pa_mainloop_dispatch () at /lib64/libpulse.so.0
#3  0x00007f18f5f99b4c in pa_mainloop_iterate () at /lib64/libpulse.so.0
#4  0x00007f18f5f99bf0 in pa_mainloop_run () at /lib64/libpulse.so.0
#5  0x00007f18f5fa7bd9 in thread () at /lib64/libpulse.so.0
#6  0x00007f18f5b421d8 in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f1911be86ca in start_thread (arg=0x7f18bdffb700) at pthread_create.c:333
#8  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 21 (Thread 0x7f18be7fc700 (LWP 2090)):
#0  0x00007f1911bee809 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f1915a0c422 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a0ccc5 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f19159ee631 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f1911be86ca in start_thread (arg=0x7f18be7fc700) at pthread_create.c:333
#9  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 20 (Thread 0x7f18beffd700 (LWP 2089)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f191786f6cd in cc::SingleThreadTaskGraphRunner::Run() () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a1656e in base::DelegateSimpleThread::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f1915a16690 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1911be86ca in start_thread (arg=0x7f18beffd700) at pthread_create.c:333
#6  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 19 (Thread 0x7f18bf7fe700 (LWP 2088)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1915a0cc35 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a0cce4 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f19159ee5f3 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f1911be86ca in start_thread (arg=0x7f18bf7fe700) at pthread_create.c:333
#9  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 18 (Thread 0x7f18bffff700 (LWP 2087)):
#0  0x00007f191a874f5c in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f191a876b64 in ___fprintf_chk (fp=0x7f191ab21730 <_IO_stdfile_2_lock>, flag=1, format=0x7f190b53dc74 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f190b52586e in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f190b525a64 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f190b52a1e8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f190b51418a in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f19159ca245 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f1915fa6288 in content::BrowserThreadImpl::IOThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f1915fa6bac in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f1911be86ca in start_thread (arg=0x7f18bffff700) at pthread_create.c:333
#14 0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 17 (Thread 0x7f18ccff9700 (LWP 2086)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1915a0cc35 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a0cce4 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f19159ee5f3 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1915fa61d8 in content::BrowserThreadImpl::CacheThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1915fa6b94 in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f1911be86ca in start_thread (arg=0x7f18ccff9700) at pthread_create.c:333
#11 0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 16 (Thread 0x7f18cd7fa700 (LWP 2085)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1915a0cc35 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a0cce4 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f19159ee5f3 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1915fa6128 in content::BrowserThreadImpl::ProcessLauncherThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1915fa6b7c in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f1911be86ca in start_thread (arg=0x7f18cd7fa700) at pthread_create.c:333
#11 0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 15 (Thread 0x7f18cdffb700 (LWP 2084)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1915a0cc35 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a0cce4 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f19159ee5f3 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1915fa6078 in content::BrowserThreadImpl::FileUserBlockingThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1915fa6b6c in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f1911be86ca in start_thread (arg=0x7f18cdffb700) at pthread_create.c:333
#11 0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 14 (Thread 0x7f18ce7fc700 (LWP 2083)):
#0  0x00007f191a874f5c in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f191a876b64 in ___fprintf_chk (fp=0x7f191ab21730 <_IO_stdfile_2_lock>, flag=1, format=0x7f190b53dc74 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f190b52586e in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f190b525a64 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f190b52a1e8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f190b51418a in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f19159ca192 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f1915fa5fc8 in content::BrowserThreadImpl::FileThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f1915fa6b5c in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f1911be86ca in start_thread (arg=0x7f18ce7fc700) at pthread_create.c:333
#14 0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 13 (Thread 0x7f18ceffd700 (LWP 2082)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1915a0cc35 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a0cce4 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f19159ee5f3 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1915fa5f18 in content::BrowserThreadImpl::DBThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1915fa6b4c in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f1911be86ca in start_thread (arg=0x7f18ceffd700) at pthread_create.c:333
#11 0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 12 (Thread 0x7f18cf7fe700 (LWP 2081)):
#0  0x00007f1911bee809 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f1915a0c422 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a19949 in base::PosixDynamicThreadPool::WaitForTask() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f1915a19e83 in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1911be86ca in start_thread (arg=0x7f18cf7fe700) at pthread_create.c:333
#6  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 11 (Thread 0x7f18cffff700 (LWP 2080)):
#0  0x00007f1911bee809 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f1915a0c422 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a19949 in base::PosixDynamicThreadPool::WaitForTask() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f1915a19e83 in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1911be86ca in start_thread (arg=0x7f18cffff700) at pthread_create.c:333
#6  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 10 (Thread 0x7f18e4e49700 (LWP 2079)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1915a0cc35 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f1915a0cce4 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f19159ee5f3 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f1911be86ca in start_thread (arg=0x7f18e4e49700) at pthread_create.c:333
#9  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 9 (Thread 0x7f18e564a700 (LWP 2078)):
#0  0x00007f191a856c4d in write () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f191a7d9a57 in _IO_new_file_write (f=0x7f191ab20500 <_IO_2_1_stderr_>, data=0x7f18e5646ed0, n=39) at fileops.c:1271
#2  0x00007f191a7da368 in new_do_write (to_do=<optimized out>, data=0x7f18e5646ed0 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7f191ab20500 <_IO_2_1_stderr_>) at fileops.c:526
#3  0x00007f191a7da368 in _IO_new_file_xsputn (f=0x7f191ab20500 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1350
#4  0x00007f191a7afa45 in buffered_vfprintf (s=0x7f191ab20500 <_IO_2_1_stderr_>, format=<optimized out>, args=<optimized out>) at vfprintf.c:2346
#5  0x00007f191a7acbf5 in _IO_vfprintf_internal (s=s@entry=0x7f191ab20500 <_IO_2_1_stderr_>, format=0x7f190b53dc74 "[%s] %s\n", ap=ap@entry=0x7f18e5649468) at vfprintf.c:1293
#6  0x00007f191a876bb9 in ___fprintf_chk (fp=0x7f191ab20500 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007f190b52586e in _warn_helper () at /lib64/libevent-2.0.so.5
#8  0x00007f190b525a64 in event_warn () at /lib64/libevent-2.0.so.5
#9  0x00007f190b52a1e8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#10 0x00007f190b51418a in event_base_loop () at /lib64/libevent-2.0.so.5
#11 0x00007f19159ca0fe in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f1915a00e8a in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f1915a169a5 in base::Thread::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#14 0x00007f1915a16c64 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#15 0x00007f1915a133d2 in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#16 0x00007f1911be86ca in start_thread (arg=0x7f18e564a700) at pthread_create.c:333
#17 0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7f18e8017700 (LWP 2070)):
#0  0x00007f191a85b01d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f190d14d166 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f190d14d27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f191b6616eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f191b61268a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f191b46f5e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f1920495fb9 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#7  0x00007f191b4739ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f1911be86ca in start_thread (arg=0x7f18e8017700) at pthread_create.c:333
#9  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7f18e8cae700 (LWP 2069)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f18eeada53b in util_queue_thread_func () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f18eeada267 in impl_thrd_routine () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f1911be86ca in start_thread (arg=0x7f18e8cae700) at pthread_create.c:333
#4  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7f18e94af700 (LWP 2068)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f18eeada53b in util_queue_thread_func () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f18eeada267 in impl_thrd_routine () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f1911be86ca in start_thread (arg=0x7f18e94af700) at pthread_create.c:333
#4  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7f18e9cb0700 (LWP 2067)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f18eeada53b in util_queue_thread_func () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f18eeada267 in impl_thrd_routine () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f1911be86ca in start_thread (arg=0x7f18e9cb0700) at pthread_create.c:333
#4  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7f18ea4b1700 (LWP 2066)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f18eeada53b in util_queue_thread_func () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f18eeada267 in impl_thrd_routine () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f1911be86ca in start_thread (arg=0x7f18ea4b1700) at pthread_create.c:333
#4  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f18eacb2700 (LWP 2065)):
#0  0x00007f1911bee460 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f18eeada53b in util_queue_thread_func () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f18eeada267 in impl_thrd_routine () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f1911be86ca in start_thread (arg=0x7f18eacb2700) at pthread_create.c:333
#4  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f18f8423700 (LWP 2064)):
#0  0x00007f191a85b01d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1910654d10 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f1910656aa9 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f18fc24dd69 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f191b4739ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f1911be86ca in start_thread (arg=0x7f18f8423700) at pthread_create.c:333
#6  0x00007f191a866f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f1902dc6940 (LWP 2062)):
[KCrash Handler]
#6  0x00007f1914947d31 in QtWebEngineCore::WebContentsAdapter::selectedText() const () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f19203f4775 in QWebEnginePage::selectedText() const () at /lib64/libQt5WebEngineWidgets.so.5
#8  0x00007f192040233b in QWebEngineView::selectedText() const () at /lib64/libQt5WebEngineWidgets.so.5
#9  0x00007f17fd836405 in MessageViewer::Viewer::selectedText() const () at /lib64/libKF5MessageViewer.so.5
#10 0x00007f17f6e49294 in KMReaderWin::copyText() const () at /lib64/libkmailprivate.so.5
#11 0x00007f17f6ea3b8a in KMail::MessageActions::replyCommand(MessageComposer::ReplyStrategy) () at /lib64/libkmailprivate.so.5
#12 0x00007f191b63aa56 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#13 0x00007f191be4d4b2 in QAction::triggered(bool) () at /lib64/libQt5Widgets.so.5
#14 0x00007f191be4fee2 in QAction::activate(QAction::ActionEvent) () at /lib64/libQt5Widgets.so.5
#15 0x00007f191bf3e01d in QAbstractButtonPrivate::click() () at /lib64/libQt5Widgets.so.5
#16 0x00007f191bf3e264 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /lib64/libQt5Widgets.so.5
#17 0x00007f191c00ab3a in QToolButton::mouseReleaseEvent(QMouseEvent*) () at /lib64/libQt5Widgets.so.5
#18 0x00007f191be9b7c0 in QWidget::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#19 0x00007f191c00ac22 in QToolButton::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#20 0x00007f191be53ecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#21 0x00007f191be5c52d in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#22 0x00007f191b6136fa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#23 0x00007f191be5abbd in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /lib64/libQt5Widgets.so.5
#24 0x00007f191beb5f46 in QWidgetWindow::handleMouseEvent(QMouseEvent*) () at /lib64/libQt5Widgets.so.5
#25 0x00007f191beb89a3 in QWidgetWindow::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#26 0x00007f191be53ecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#27 0x00007f191be5b671 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#28 0x00007f191b6136fa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#29 0x00007f191b94a2b3 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /lib64/libQt5Gui.so.5
#30 0x00007f191b94bd85 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /lib64/libQt5Gui.so.5
#31 0x00007f191b92cc4b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Gui.so.5
#32 0x00007f18fc2846c0 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5XcbQpa.so.5
#33 0x00007f190d14ce52 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#34 0x00007f190d14d1d0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#35 0x00007f190d14d27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#36 0x00007f191b6616cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#37 0x00007f191b61268a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#38 0x00007f191b61a18c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#39 0x0000556eccb194f7 in main ()

Possible duplicates by query: bug 368371.

Reported using DrKonqi
Comment 1 Justin Zobel 2020-12-07 04:23:24 UTC 
Thank you for the report, John.

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 2 John Perry 2020-12-11 19:14:37 UTC 
(In reply to Justin Zobel from comment #1)
> Thank you for the report, John.
> 
> 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.

I guess the bug has resolved, though to be honest I seem to have mostly quit using Kmail a while back. I tested it just now and it seems not to crash when replying to an email; I merely have other issues.
Comment 3 John Perry 2020-12-11 19:23:42 UTC 
(In reply to John Perry from comment #2)
> (In reply to Justin Zobel from comment #1)
> > Thank you for the report, John.
> > 
> > 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.
> 
> I guess the bug has resolved, though to be honest I seem to have mostly quit
> using Kmail a while back. I tested it just now and it seems not to crash
> when replying to an email; I merely have other issues.

To be specific on the "other issues": I get failure to transport messages saying that the TLS/SSL connection has been closed. This happens only on one machine, not on another, despite having the same settings on Kmail. I imagine something's broken somewhere on the system where it doesn't work, but I have no idea what it is, and no motivation to find out, since on that system I've been using a different mailer for a while now. In any case, I guess this particular bug is resolved.
Comment 4 Justin Zobel 2020-12-13 01:15:37 UTC 
Thanks John. If you need assistance with the other bug please file a new report so the developers can investigate, thanks!