Bug 368983

Summary: Kmail crashes randomly
Product: [Applications] kontact Reporter: Kosmas Mackrogamvrakis <kosmas>
Component: generalAssignee: kdepim bugs <kdepim-bugs>
Status: RESOLVED DOWNSTREAM    
Severity: crash CC: jan.mussche, kde, matthias.nagel, thanosk
Priority: NOR Keywords: drkonqi
Version: unspecified   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Kosmas Mackrogamvrakis 2016-09-18 07:49:59 UTC 
Application: kontact (5.3.0 (QtWebEngine))

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.7.3-200.fc24.x86_64 x86_64
Distribution: "Fedora release 24 (Twenty Four)"

-- Information about the crash:
- What I was doing when the application crashed:
New kde setup, first time kmail/kontact initalization.
Upon opening the mail panel it crashes. 
Possible HTMl message is the first in the list (I don't know if that makes any difference)

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1481cb8940 (LWP 2309))]

Thread 38 (Thread 0x7f13215f0700 (LWP 2412)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa23e79 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa24540 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147aa24710 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 37 (Thread 0x7f1321df1700 (LWP 2411)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa23e79 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa24540 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147aa24710 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 36 (Thread 0x7f1323fff700 (LWP 2376)):
#0  0x00007f1474baaefd in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007f1474bab92b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#8  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 35 (Thread 0x7f1338dbc700 (LWP 2374)):
#0  0x00007f1474befa24 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f1474bab8ad in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#8  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 34 (Thread 0x7f13395bd700 (LWP 2372)):
#0  0x00007f1474befa24 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f1474baaf4c in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f1474bab92b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 33 (Thread 0x7f1339dbe700 (LWP 2370)):
#0  0x00007f147e1313ed in poll () at /lib64/libc.so.6
#1  0x00007f1474baba06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#8  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 32 (Thread 0x7f133a5bf700 (LWP 2368)):
#0  0x00007ffeb1dbc977 in  ()
#1  0x00007ffeb1dbcc51 in clock_gettime ()
#2  0x00007f147e14b4e6 in clock_gettime () at /lib64/libc.so.6
#3  0x00007f147edf3ab3 in qt_gettime() () at /lib64/libQt5Core.so.5
#4  0x00007f147ef43869 in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#5  0x00007f147ef43c65 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#6  0x00007f147ef44dac in timerSourcePrepareHelper(GTimerSource*, int*) () at /lib64/libQt5Core.so.5
#7  0x00007f147ef44e75 in timerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#8  0x00007f1474baaf59 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#9  0x00007f1474bab92b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#10 0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#11 0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#12 0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#13 0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#14 0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#15 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#16 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 31 (Thread 0x7f133adc0700 (LWP 2366)):
#0  0x00007f147ef44f87 in postEventSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#1  0x00007f1474bab421 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007f1474bab9a4 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 30 (Thread 0x7f133b5c1700 (LWP 2362)):
#0  0x00007f147e12d04d in read () at /lib64/libc.so.6
#1  0x00007f1474bee660 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007f1474bab4d6 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f1474bab9a4 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#10 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 29 (Thread 0x7f1355ffb700 (LWP 2353)):
#0  0x00007f1474befa09 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007f1474bab1a1 in g_main_context_query () at /lib64/libglib-2.0.so.0
#2  0x00007f1474bab978 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 28 (Thread 0x7f13567fc700 (LWP 2351)):
#0  0x00007f147ed505c9 in QMutex::lock() () at /lib64/libQt5Core.so.5
#1  0x00007f147ef44fcf in postEventSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#2  0x00007f1474baaf59 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#3  0x00007f1474bab92b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#10 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 27 (Thread 0x7f1356ffd700 (LWP 2349)):
#0  0x00007f147e1313ed in poll () at /lib64/libc.so.6
#1  0x00007f1474baba06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#8  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 26 (Thread 0x7f13577fe700 (LWP 2347)):
#0  0x00007f1474befa24 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f1474bab419 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007f1474bab9a4 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f1357fff700 (LWP 2345)):
#0  0x00007f147e1313ed in poll () at /lib64/libc.so.6
#1  0x00007f1474baba06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#8  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f135ce98700 (LWP 2343)):
#0  0x00007f147e1313ed in poll () at /lib64/libc.so.6
#1  0x00007f1474baba06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#8  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f135d699700 (LWP 2341)):
#0  0x00007f1474befa30 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f1474baaf4c in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f1474bab92b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f14037f8700 (LWP 2335)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f1467d23bc4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f1467d23c09 in  () at /lib64/libQt5Script.so.5
#3  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#4  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f1403ff9700 (LWP 2332)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147a933b90 in mojo::system::Waiter::Wait(unsigned long, unsigned int*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147a91f48c in mojo::system::Core::WaitManyInternal(unsigned int const*, unsigned int const*, unsigned int, unsigned long, unsigned int*, mojo::system::HandleSignalsState*) () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147a91f98c 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 /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147a91bde5 in MojoWaitMany () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f147bf95e47 in mojo::common::MessagePumpMojo::DoInternalWork(mojo::common::MessagePumpMojo::RunState const&, bool) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f147bf9607e in mojo::common::MessagePumpMojo::DoRunLoop(mojo::common::MessagePumpMojo::RunState*, base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f147bf961b9 in mojo::common::MessagePumpMojo::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f147aa24c06 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#13 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f1414ff9700 (LWP 2331)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa23e79 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa24540 in base::SequencedWorkerPool::Worker::Run() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147aa24710 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f14157fa700 (LWP 2330)):
#0  0x00007f147e14ad0c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f147e14c7c4 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f14701aa89e in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f14701aaa94 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f14701af0d8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f14701990e0 in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f147a9d42da in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f147aa24c06 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#12 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f1415ffb700 (LWP 2329)):
#0  0x00007f14584d6198 in pushbuf_flush () at /lib64/libdrm_nouveau.so.2
#1  0x00007f14584d6bc0 in nouveau_pushbuf_kick () at /lib64/libdrm_nouveau.so.2
#2  0x00007f14537888e6 in nvc0_flush () at /usr/lib64/dri/nouveau_dri.so
#3  0x00007f145338ba44 in st_glFlush () at /usr/lib64/dri/nouveau_dri.so
#4  0x00007f147a907926 in gfx::GLFence::Create() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f147b1c80ee in gpu::gles2::CommandsCompletedQuery::End(int) () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f147b1a70c4 in gpu::gles2::GLES2DecoderImpl::HandleEndQueryEXT(unsigned int, void const*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f147b198a3a in gpu::error::Error gpu::gles2::GLES2DecoderImpl::DoCommandsImpl<false>(unsigned int, void const*, int, int*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f147b1e14ba in gpu::CommandParser::ProcessCommands(int) () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f147b1b0732 in gpu::GpuScheduler::PutChanged() () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f147a725d39 in content::GpuCommandBufferStub::OnAsyncFlush(int, unsigned int, std::vector<ui::LatencyInfo, std::allocator<ui::LatencyInfo> > const&) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f147a72ac54 in content::GpuCommandBufferStub::OnMessageReceived(IPC::Message const&) () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f147a7093af in content::MessageRouter::RouteMessage(IPC::Message const&) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f147a724843 in content::GpuChannel::HandleMessage() () at /lib64/libQt5WebEngineCore.so.5
#14 0x00007f147aa4aa28 in base::debug::TaskAnnotator::RunTask(char const*, char const*, base::PendingTask const&) () at /lib64/libQt5WebEngineCore.so.5
#15 0x00007f147a9f7a44 in base::MessageLoop::RunTask(base::PendingTask const&) () at /lib64/libQt5WebEngineCore.so.5
#16 0x00007f147a9f8269 in base::MessageLoop::DeferOrRunPendingTask(base::PendingTask const&) () at /lib64/libQt5WebEngineCore.so.5
#17 0x00007f147a9f8732 in base::MessageLoop::DoWork() () at /lib64/libQt5WebEngineCore.so.5
#18 0x00007f147a9fac29 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#19 0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#20 0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#21 0x00007f147aa24c06 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#22 0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#23 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#24 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f14167fc700 (LWP 2328)):
#0  0x00007f147e12d04d in read () at /lib64/libc.so.6
#1  0x00007f1459f5eb31 in pa_read () at /usr/lib64/pulseaudio/libpulsecommon-8.0.so
#2  0x00007f145a3e5d7e in pa_mainloop_prepare () at /lib64/libpulse.so.0
#3  0x00007f145a3e67f0 in pa_mainloop_iterate () at /lib64/libpulse.so.0
#4  0x00007f145a3e68b0 in pa_mainloop_run () at /lib64/libpulse.so.0
#5  0x00007f145a3f48c9 in thread () at /lib64/libpulse.so.0
#6  0x00007f1459f8c18b in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-8.0.so
#7  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#8  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f1416ffd700 (LWP 2327)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa19925 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa19a04 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147a9fac73 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f147aa24c06 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f14177fe700 (LWP 2326)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147a2bf989 in cc::TaskGraphRunner::Run() () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa24710 in base::SimpleThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#5  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f1417fff700 (LWP 2325)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa19925 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa19a04 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147a9fac73 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f147aa24c06 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f1434ff9700 (LWP 2324)):
#0  0x00007f147e14ad0c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f147e14c7c4 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f14701aa89e in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f14701aaa94 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f14701af0d8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f14701990e0 in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f147a9d422e in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f1479f1c4b8 in content::BrowserThreadImpl::IOThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f1479f1c61b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f147aa24c88 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#14 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f14357fa700 (LWP 2323)):
#0  0x00007f147e14ad0c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f147e14c7c4 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f14701aa89e in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f14701aaa94 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f14701af0d8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f14701990e0 in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f147a9d43ab in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f1479f1c408 in content::BrowserThreadImpl::CacheThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f1479f1c67b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f147aa24c88 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#14 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f1435ffb700 (LWP 2322)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa19925 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa19a04 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147a9fac73 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1479f1c358 in content::BrowserThreadImpl::ProcessLauncherThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1479f1c66b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f147aa24c88 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#11 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f14367fc700 (LWP 2321)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa19925 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa19a04 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147a9fac73 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1479f1c2a8 in content::BrowserThreadImpl::FileUserBlockingThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1479f1c65b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f147aa24c88 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#11 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f1436ffd700 (LWP 2320)):
#0  0x00007f147e14ad0c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f147e14c7c4 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f14701aa89e in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f14701aaa94 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f14701af0d8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f14701990e0 in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f147a9d42da in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f1479f1c1f8 in content::BrowserThreadImpl::FileThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f1479f1c64b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f147aa24c88 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#14 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f14377fe700 (LWP 2319)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa19925 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa19a04 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147a9fac73 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f1479f1c148 in content::BrowserThreadImpl::DBThreadRun(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f1479f1c63b in content::BrowserThreadImpl::Run(base::MessageLoop*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f147aa24c88 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#11 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f1437fff700 (LWP 2318)):
#0  0x00007f1476886f79 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa19102 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa27aa1 in base::PosixDynamicThreadPool::WaitForTask() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147aa27fcd in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f144cfde700 (LWP 2317)):
#0  0x00007f1476886f79 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa19102 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa27aa1 in base::PosixDynamicThreadPool::WaitForTask() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147aa27fcd in base::(anonymous namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f144d7df700 (LWP 2316)):
#0  0x00007f1476886bd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f147aa19925 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f147aa19a04 in base::WaitableEvent::Wait() () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f147a9fac73 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f147aa24c06 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f144dfe0700 (LWP 2315)):
#0  0x00007f147e12d0ad in write () at /lib64/libc.so.6
#1  0x00007f147e0b0b7f in _IO_new_file_write () at /lib64/libc.so.6
#2  0x00007f147e0b1304 in __GI__IO_file_xsputn () at /lib64/libc.so.6
#3  0x00007f147e088154 in buffered_vfprintf () at /lib64/libc.so.6
#4  0x00007f147e08566d in vfprintf () at /lib64/libc.so.6
#5  0x00007f147e14c819 in __fprintf_chk () at /lib64/libc.so.6
#6  0x00007f14701aa89e in _warn_helper () at /lib64/libevent-2.0.so.5
#7  0x00007f14701aaa94 in event_warn () at /lib64/libevent-2.0.so.5
#8  0x00007f14701af0d8 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#9  0x00007f14701990e0 in event_base_loop () at /lib64/libevent-2.0.so.5
#10 0x00007f147a9d42da in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f147aa0c0f4 in base::RunLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f147a9f6f35 in base::MessageLoop::Run() () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f147aa24c06 in base::Thread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#14 0x00007f147aa210fd in base::(anonymous namespace)::ThreadFunc(void*) () at /lib64/libQt5WebEngineCore.so.5
#15 0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#16 0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f1450239700 (LWP 2312)):
#0  0x00007f147e1313ed in poll () at /lib64/libc.so.6
#1  0x00007f1474baba06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f147ef4524b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f147ed53343 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f1483e37559 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#7  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f145c449700 (LWP 2311)):
#0  0x00007f147e1313ed in poll () at /lib64/libc.so.6
#1  0x00007f14752dbf80 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f14752ddb79 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f145f3bcda9 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f147ed5799a in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f14768815ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007f147e13cf6d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f1481cb8940 (LWP 2309)):
[KCrash Handler]
#6  0x00007f14584d622f in pushbuf_kref () at /lib64/libdrm_nouveau.so.2
#7  0x00007f14584d68b9 in pushbuf_validate () at /lib64/libdrm_nouveau.so.2
#8  0x00007f145379a762 in nvc0_state_validate () at /usr/lib64/dri/nouveau_dri.so
#9  0x00007f145379a907 in nvc0_state_validate_3d () at /usr/lib64/dri/nouveau_dri.so
#10 0x00007f14537a6b80 in nvc0_draw_vbo () at /usr/lib64/dri/nouveau_dri.so
#11 0x00007f145339b8b0 in st_draw_vbo () at /usr/lib64/dri/nouveau_dri.so
#12 0x00007f145335cae3 in vbo_draw_arrays () at /usr/lib64/dri/nouveau_dri.so
#13 0x00007f147f513223 in QOpenGLTextureBlitterPrivate::blit(unsigned int, QMatrix4x4 const&, QGenericMatrix<3, 3, float> const&) () at /lib64/libQt5Gui.so.5
#14 0x00007f147f47574c in QPlatformBackingStore::composeAndFlush(QWindow*, QRegion const&, QPoint const&, QPlatformTextureList*, QOpenGLContext*, bool) () at /lib64/libQt5Gui.so.5
#15 0x00007f145f3dc5f7 in QXcbBackingStore::composeAndFlush(QWindow*, QRegion const&, QPoint const&, QPlatformTextureList*, QOpenGLContext*, bool) () at /lib64/libQt5XcbQpa.so.5
#16 0x00007f147f799958 in QWidgetBackingStore::qt_flush(QWidget*, QRegion const&, QBackingStore*, QWidget*, QPoint const&, QPlatformTextureList*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#17 0x00007f147f79a74e in QWidgetBackingStore::flush(QWidget*) () at /lib64/libQt5Widgets.so.5
#18 0x00007f147f79cf65 in QWidgetBackingStore::doSync() () at /lib64/libQt5Widgets.so.5
#19 0x00007f147f79d151 in QWidgetBackingStore::sync() () at /lib64/libQt5Widgets.so.5
#20 0x00007f147f7bcbef in QWidgetPrivate::syncBackingStore() () at /lib64/libQt5Widgets.so.5
#21 0x00007f147f7d4a18 in QWidget::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#22 0x00007f147f8ee57b in QMainWindow::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#23 0x00007f148269b917 in KMainWindow::event(QEvent*) () at /lib64/libKF5XmlGui.so.5
#24 0x00007f14826e0835 in KXmlGuiWindow::event(QEvent*) () at /lib64/libKF5XmlGui.so.5
#25 0x00007f147f78ec0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#26 0x00007f147f7940ef in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#27 0x00007f147eef57aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#28 0x00007f147eef784f in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#29 0x00007f147ef451b3 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#30 0x00007f1474bab6ba in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#31 0x00007f1474baba70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#32 0x00007f1474babb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#33 0x00007f147ef4522f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#34 0x00007f147eef45ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#35 0x00007f147eefc17c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#36 0x00005622f39fa4e7 in main ()

Reported using DrKonqi
Comment 1 DeMus 2016-10-16 05:14:36 UTC 
SolydKEE 64-bit, based on Debian 9 Testing
KMail 5.2.3
KDE Frameworks 5.26.0
Qt 5.6.1 (built against 5.6.1)
The xcb windowing system

KMail crashes when adding Gmail IMAP account.
Did try again and happened again.

Crashreport:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3c7c419e40 (LWP 2789))]

Thread 25 (Thread 0x7f3b409e4700 (LWP 2851)):
#0  0x00007f3c73085024 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3c7303f3c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303f974 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 24 (Thread 0x7f3bc141e700 (LWP 2840)):
#0  0x00007f3c7387a18f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f3c66a69574 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f3c66a695b9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 23 (Thread 0x7f3bc2dba700 (LWP 2832)):
#0  0x00007f3c7a26aea9 in QMutex::unlock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f3c7a49fd25 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3c7303f3c9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7303f974 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 22 (Thread 0x7f3bc35bb700 (LWP 2830)):
#0  0x00007f3c7996450d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f3c7303f9d6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 21 (Thread 0x7f3bc3dbc700 (LWP 2828)):
#0  0x00007f3c73085024 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3c7303eecc in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303f8fb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 20 (Thread 0x7f3bd1bbb700 (LWP 2818)):
#0  0x00007f3c73085009 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3c7303f3d4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303f974 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 19 (Thread 0x7f3bd23bc700 (LWP 2816)):
#0  0x00007f3c7996450d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f3c7303f9d6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 18 (Thread 0x7f3bd37fe700 (LWP 2814)):
#0  0x00007f3c799644e0 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f3c7303f9d6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 17 (Thread 0x7f3bd3fff700 (LWP 2812)):
#0  0x00007f3c7303f9b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7f3beccbc700 (LWP 2810)):
#0  0x00007f3c7303f420 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3c7303f974 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 15 (Thread 0x7f3bee7fc700 (LWP 2808)):
#0  0x00007f3c73083c30 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3c7303f485 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303f974 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 14 (Thread 0x7f3beeffd700 (LWP 2806)):
#0  0x00007f3c7997a202 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f3c79960589 in read () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f3c73083c60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7303f485 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3c7303f974 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7f3bef7fe700 (LWP 2804)):
#0  0x00007f3c7996450d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f3c7303f9d6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7f3beffff700 (LWP 2802)):
#0  0x00007f3c7996450d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f3c7303f9d6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7f3bf4d2b700 (LWP 2800)):
#0  0x00007f3c7996057d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f3c73083c60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303f485 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7303f974 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7f3bf552c700 (LWP 2798)):
#0  0x00007f3c7303f98d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7f3c071e3700 (LWP 2797)):
#0  0x00007f3c7387a18f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f3c77622933 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f3c7794a941 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7f3c079e4700 (LWP 2796)):
#0  0x00007f3c7387a18f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f3c77621811 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f3c7794a941 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7f3c08fbb700 (LWP 2795)):
#0  0x00007f3c7387a18f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f3c115a7543 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f3c115a73a7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f3c097bc700 (LWP 2794)):
#0  0x00007f3c7387a18f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f3c115a7543 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f3c115a73a7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f3c124d4700 (LWP 2793)):
#0  0x00007f3c7997a19f in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f3c79964502 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f3c7303f9d6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f3c535ec700 (LWP 2792)):
#0  0x00007f3c7387a18f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f3c77919c2b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f3c77919c69 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f3c58b6c700 (LWP 2791)):
#0  0x00007f3c73085009 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3c7303f9bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c7a4a051b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c7a26de53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3c7c7aa525 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f3c60ffc700 (LWP 2790)):
#0  0x00007f3c7996450d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f3c73eb1150 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f3c73eb2ee9 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f3c62b47a79 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f3c7a272d78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3c73874464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f3c7996d97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f3c7c419e40 (LWP 2789)):
[KCrash Handler]
#6  0x00007f3c7c7c63d1 in QDBusAbstractInterface::asyncCallWithArgumentList(QString const&, QList<QVariant> const&) () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f3c6f87d437 in KWallet::Wallet::isOpen(QString const&) () from /usr/lib/x86_64-linux-gnu/libKF5Wallet.so.5
#8  0x00007f3bfe410290 in MailTransport::Transport::usrRead() () from /usr/lib/x86_64-linux-gnu/libKF5MailTransport.so.5
#9  0x00007f3bfe417028 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5MailTransport.so.5
#10 0x00007f3bfe41773c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5MailTransport.so.5
#11 0x00007f3bfe417c65 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5MailTransport.so.5
#12 0x00007f3bfe417e25 in MailTransport::TransportManager::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libKF5MailTransport.so.5
#13 0x00007f3c7c7b6068 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#14 0x00007f3c7a478729 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f3c7afe1bec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f3c7afe708f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f3c7a44a450 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f3c7a44c3cc in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f3c7a4a00f3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f3c7303f7d7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f3c7303fa40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f3c7303faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f3c7a4a04ff in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f3c7a44819a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f3c7a45099c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x000000000040439f in ?? ()
#27 0x00007f3c798a52b1 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#28 0x00000000004048a9 in _start ()
Comment 2 Christoph Feck 2016-10-23 02:32:20 UTC 
Crash is in nouveau drivers. Please report this issue directly to nouveau developers via https://bugs.freedesktop.org/
Comment 3 Kosmas Mackrogamvrakis 2016-10-23 06:09:46 UTC 
Thank you Christopher.

I just replaced the nouveau driver by nvidia one and the problem stopped.
Comment 4 Christoph Feck 2016-11-29 23:16:31 UTC 
*** Bug 373051 has been marked as a duplicate of this bug. ***
Comment 5 Christoph Feck 2016-11-29 23:17:25 UTC 
*** Bug 372948 has been marked as a duplicate of this bug. ***
Comment 6 Christoph Feck 2016-11-29 23:17:45 UTC 
*** Bug 372034 has been marked as a duplicate of this bug. ***