https://bugs.kde.org/show_bug.cgi?id=369001

            Bug ID: 369001
           Summary: Kontact crashes upon opening
           Product: kontact
           Version: unspecified
          Platform: Fedora RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs@kde.org
          Reporter: amess...@messinet.com

Application: kontact (5.3.0 (QtWebEngine))

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.7.4-200.fc24.x86_64 x86_64
Distribution: "Fedora release 24 (Twenty Four)"

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

Trying to open Kontact.  Earlier, I also got the following in dmesg:

[Sun Sep 18 11:11:31 2016] nouveau 0000:01:00.0: kontact[3006]: Unknown handle
0x00000068
[Sun Sep 18 11:11:31 2016] nouveau 0000:01:00.0: kontact[3006]: validate_init
[Sun Sep 18 11:11:31 2016] nouveau 0000:01:00.0: kontact[3006]: validate: -2
[Sun Sep 18 11:11:31 2016] nouveau 0000:01:00.0: kontact[3006]: Unknown handle
0x00000088
[Sun Sep 18 11:11:31 2016] nouveau 0000:01:00.0: kontact[3006]: validate_init
[Sun Sep 18 11:11:31 2016] nouveau 0000:01:00.0: kontact[3006]: validate: -2
[Sun Sep 18 11:46:59 2016] nouveau 0000:01:00.0: kontact[3455]: Unknown handle
0x00000037
[Sun Sep 18 11:46:59 2016] nouveau 0000:01:00.0: kontact[3455]: validate_init
[Sun Sep 18 11:46:59 2016] nouveau 0000:01:00.0: kontact[3455]: validate: -2
[Sun Sep 18 11:46:59 2016] nouveau 0000:01:00.0: kontact[3455]: Unknown handle
0x00000041
[Sun Sep 18 11:46:59 2016] nouveau 0000:01:00.0: kontact[3455]: validate_init
[Sun Sep 18 11:46:59 2016] nouveau 0000:01:00.0: kontact[3455]: validate: -2

The crash can be reproduced sometimes.

-- Backtrace:
Application: Kontact (kontact), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f347f0cb940 (LWP 2477))]

Thread 35 (Thread 0x7f333f7fe700 (LWP 2732)):
#0  0x00007f348dd15a5e in g_source_iter_next () from /lib64/libglib-2.0.so.0
#1  0x00007f348dd18354 in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007f348dd189a4 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#3  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#4  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#5  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#6  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#8  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 34 (Thread 0x7f333ffff700 (LWP 2727)):
#0  0x00007f349722b3ed in poll () from /lib64/libc.so.6
#1  0x00007f348dd18a06 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#8  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 33 (Thread 0x7f334d78e700 (LWP 2694)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b2ae79 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b2b540 in base::SequencedWorkerPool::Worker::Run() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b2b710 in base::SimpleThread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 32 (Thread 0x7f334f1e7700 (LWP 2658)):
#0  0x00007f348dd17f60 in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#1  0x00007f348dd1892b in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#8  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 31 (Thread 0x7f334f9e8700 (LWP 2656)):
#0  0x00007f349722704d in read () from /lib64/libc.so.6
#1  0x00007f348dd5b660 in g_wakeup_acknowledge () from /lib64/libglib-2.0.so.0
#2  0x00007f348dd184d6 in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007f348dd189a4 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#4  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#5  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#6  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#7  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#8  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#9  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#10 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 30 (Thread 0x7f3362666700 (LWP 2620)):
#0  0x00007f349722b3ed in poll () from /lib64/libc.so.6
#1  0x00007f348dd18a06 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#8  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 29 (Thread 0x7f3362e67700 (LWP 2609)):
#0  0x00007f348dd17f60 in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#1  0x00007f348dd1892b in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#8  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 28 (Thread 0x7f3363fff700 (LWP 2606)):
#0  0x00007f349722b3ed in poll () from /lib64/libc.so.6
#1  0x00007f348dd18a06 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#8  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x7f3370e72700 (LWP 2582)):
#0  0x00007f349722b3ed in poll () from /lib64/libc.so.6
#1  0x00007f348dd18a06 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#8  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7f3371673700 (LWP 2579)):
#0  0x00007f348dd5ca24 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007f348dd18419 in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007f348dd189a4 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#3  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#4  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#5  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#6  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#8  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7f3371e74700 (LWP 2551)):
#0  0x00007f348dd17f1d in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#1  0x00007f348dd1892b in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#8  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7f3372675700 (LWP 2549)):
#0  0x00007f349802ec8b in QTimerInfoList::timerWait(timespec&) () from
/lib64/libQt5Core.so.5
#1  0x00007f349802fdac in timerSourcePrepareHelper(GTimerSource*, int*) () from
/lib64/libQt5Core.so.5
#2  0x00007f349802fe75 in timerSourcePrepare(_GSource*, int*) () from
/lib64/libQt5Core.so.5
#3  0x00007f348dd17f59 in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#4  0x00007f348dd1892b in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#5  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#6  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#7  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#8  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#9  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#10 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#11 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7f340bdea700 (LWP 2547)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3480fa1bc4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from
/lib64/libQt5Script.so.5
#2  0x00007f3480fa1c09 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*)
() from /lib64/libQt5Script.so.5
#3  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#4  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7f34397fa700 (LWP 2501)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493a3ab90 in mojo::system::Waiter::Wait(unsigned long, unsigned
int*) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493a2648c in mojo::system::Core::WaitManyInternal(unsigned int
const*, unsigned int const*, unsigned int, unsigned long, unsigned int*,
mojo::system::HandleSignalsState*) () from /lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493a2698c 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>) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493a22de5 in MojoWaitMany () from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f349509ce47 in
mojo::common::MessagePumpMojo::DoInternalWork(mojo::common::MessagePumpMojo::RunState
const&, bool) () from /lib64/libQt5WebEngineCore.so.5
#6  0x00007f349509d07e in
mojo::common::MessagePumpMojo::DoRunLoop(mojo::common::MessagePumpMojo::RunState*,
base::MessagePump::Delegate*) () from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f349509d1b9 in
mojo::common::MessagePumpMojo::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f3493b2bc06 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#11 0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#12 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#13 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7f3439ffb700 (LWP 2500)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b2ae79 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b2b540 in base::SequencedWorkerPool::Worker::Run() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b2b710 in base::SimpleThread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7f343a7fc700 (LWP 2499)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b2ae79 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b2b540 in base::SequencedWorkerPool::Worker::Run() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b2b710 in base::SimpleThread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7f343affd700 (LWP 2498)):
#0  0x00007f346efb87ca in pa_srbchannel_read () from
/usr/lib64/pulseaudio/libpulsecommon-8.0.so
#1  0x00007f346efb5408 in do_read () from
/usr/lib64/pulseaudio/libpulsecommon-8.0.so
#2  0x00007f346efb7a63 in do_pstream_read_write () from
/usr/lib64/pulseaudio/libpulsecommon-8.0.so
#3  0x00007f346efb7e09 in srb_callback () from
/usr/lib64/pulseaudio/libpulsecommon-8.0.so
#4  0x00007f346efb868a in srbchannel_rwloop () from
/usr/lib64/pulseaudio/libpulsecommon-8.0.so
#5  0x00007f346f41d40c in pa_mainloop_dispatch () from /lib64/libpulse.so.0
#6  0x00007f346f41d80c in pa_mainloop_iterate () from /lib64/libpulse.so.0
#7  0x00007f346f41d8b0 in pa_mainloop_run () from /lib64/libpulse.so.0
#8  0x00007f346f42b8c9 in thread () from /lib64/libpulse.so.0
#9  0x00007f346efc818b in internal_thread_func () from
/usr/lib64/pulseaudio/libpulsecommon-8.0.so
#10 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#11 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7f343b7fe700 (LWP 2497)):
#0  0x00007f3497244d0c in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f34972467c4 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007f348937b89e in _warn_helper () from /lib64/libevent-2.0.so.5
#3  0x00007f348937ba94 in event_warn () from /lib64/libevent-2.0.so.5
#4  0x00007f34893800d8 in epoll_dispatch () from /lib64/libevent-2.0.so.5
#5  0x00007f348936a0e0 in event_base_loop () from /lib64/libevent-2.0.so.5
#6  0x00007f3493adb2da in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f3493b2bc06 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#11 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#12 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7f3440ff9700 (LWP 2496)):
[KCrash Handler]
#6  0x00007f34971686f5 in raise () from /lib64/libc.so.6
#7  0x00007f349716a2fa in abort () from /lib64/libc.so.6
#8  0x00007f34971a9670 in __libc_message () from /lib64/libc.so.6
#9  0x00007f34971b1e0a in _int_free () from /lib64/libc.so.6
#10 0x00007f34971b536c in free () from /lib64/libc.so.6
#11 0x00007f346d03272f in nouveau_fence_trigger_work () from
/usr/lib64/dri/nouveau_dri.so
#12 0x00007f346d03296e in nouveau_fence_update () from
/usr/lib64/dri/nouveau_dri.so
#13 0x00007f346d032c93 in nouveau_fence_wait () from
/usr/lib64/dri/nouveau_dri.so
#14 0x00007f346cd31acb in st_finish () from /usr/lib64/dri/nouveau_dri.so
#15 0x00007f346cd31b10 in st_glFinish () from /usr/lib64/dri/nouveau_dri.so
#16 0x00007f3494297a61 in gpu::gles2::GLES2DecoderImpl::DoFinish() () from
/lib64/libQt5WebEngineCore.so.5
#17 0x00007f3494297a96 in gpu::gles2::GLES2DecoderImpl::HandleFinish(unsigned
int, void const*) () from /lib64/libQt5WebEngineCore.so.5
#18 0x00007f349429fa3a in gpu::error::Error
gpu::gles2::GLES2DecoderImpl::DoCommandsImpl<false>(unsigned int, void const*,
int, int*) () from /lib64/libQt5WebEngineCore.so.5
#19 0x00007f34942e84ba in gpu::CommandParser::ProcessCommands(int) () from
/lib64/libQt5WebEngineCore.so.5
#20 0x00007f34942b7732 in gpu::GpuScheduler::PutChanged() () from
/lib64/libQt5WebEngineCore.so.5
#21 0x00007f349382cd39 in content::GpuCommandBufferStub::OnAsyncFlush(int,
unsigned int, std::vector<ui::LatencyInfo, std::allocator<ui::LatencyInfo> >
const&) () from /lib64/libQt5WebEngineCore.so.5
#22 0x00007f3493831c54 in
content::GpuCommandBufferStub::OnMessageReceived(IPC::Message const&) () from
/lib64/libQt5WebEngineCore.so.5
#23 0x00007f34938103af in content::MessageRouter::RouteMessage(IPC::Message
const&) () from /lib64/libQt5WebEngineCore.so.5
#24 0x00007f349382b843 in content::GpuChannel::HandleMessage() () from
/lib64/libQt5WebEngineCore.so.5
#25 0x00007f3493b51a28 in base::debug::TaskAnnotator::RunTask(char const*, char
const*, base::PendingTask const&) () from /lib64/libQt5WebEngineCore.so.5
#26 0x00007f3493afea44 in base::MessageLoop::RunTask(base::PendingTask const&)
() from /lib64/libQt5WebEngineCore.so.5
#27 0x00007f3493aff269 in
base::MessageLoop::DeferOrRunPendingTask(base::PendingTask const&) () from
/lib64/libQt5WebEngineCore.so.5
#28 0x00007f3493aff732 in base::MessageLoop::DoWork() () from
/lib64/libQt5WebEngineCore.so.5
#29 0x00007f3493b01c29 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#30 0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#31 0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#32 0x00007f3493b2bc06 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#33 0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#34 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#35 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f34417fa700 (LWP 2495)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b20925 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b20a04 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b01c73 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f3493b2bc06 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f3441ffb700 (LWP 2494)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f34933c6989 in cc::TaskGraphRunner::Run() () from
/lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b2b710 in base::SimpleThread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f34427fc700 (LWP 2493)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b20925 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b20a04 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b01c73 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f3493b2bc06 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f3442ffd700 (LWP 2492)):
#0  0x00007f34972270ad in write () from /lib64/libc.so.6
#1  0x00007f34971aab7f in _IO_new_file_write () from /lib64/libc.so.6
#2  0x00007f34971ab304 in __GI__IO_file_xsputn () from /lib64/libc.so.6
#3  0x00007f3497182154 in buffered_vfprintf () from /lib64/libc.so.6
#4  0x00007f349717f66d in vfprintf () from /lib64/libc.so.6
#5  0x00007f3497246819 in __fprintf_chk () from /lib64/libc.so.6
#6  0x00007f348937b89e in _warn_helper () from /lib64/libevent-2.0.so.5
#7  0x00007f348937ba94 in event_warn () from /lib64/libevent-2.0.so.5
#8  0x00007f34893800d8 in epoll_dispatch () from /lib64/libevent-2.0.so.5
#9  0x00007f348936a0e0 in event_base_loop () from /lib64/libevent-2.0.so.5
#10 0x00007f3493adb22e in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#11 0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#12 0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#13 0x00007f34930234b8 in
content::BrowserThreadImpl::IOThreadRun(base::MessageLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#14 0x00007f349302361b in content::BrowserThreadImpl::Run(base::MessageLoop*)
() from /lib64/libQt5WebEngineCore.so.5
#15 0x00007f3493b2bc88 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#16 0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#17 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#18 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f34437fe700 (LWP 2491)):
#0  0x00007f3497244d0c in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f34972467c4 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007f348937b89e in _warn_helper () from /lib64/libevent-2.0.so.5
#3  0x00007f348937ba94 in event_warn () from /lib64/libevent-2.0.so.5
#4  0x00007f34893800d8 in epoll_dispatch () from /lib64/libevent-2.0.so.5
#5  0x00007f348936a0e0 in event_base_loop () from /lib64/libevent-2.0.so.5
#6  0x00007f3493adb3ab in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f3493023408 in
content::BrowserThreadImpl::CacheThreadRun(base::MessageLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f349302367b in content::BrowserThreadImpl::Run(base::MessageLoop*)
() from /lib64/libQt5WebEngineCore.so.5
#11 0x00007f3493b2bc88 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#12 0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#13 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#14 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f343bfff700 (LWP 2490)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b20925 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b20a04 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b01c73 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f3493023358 in
content::BrowserThreadImpl::ProcessLauncherThreadRun(base::MessageLoop*) ()
from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f349302366b in content::BrowserThreadImpl::Run(base::MessageLoop*)
() from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f3493b2bc88 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#10 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#11 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f3443fff700 (LWP 2489)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b20925 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b20a04 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b01c73 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f34930232a8 in
content::BrowserThreadImpl::FileUserBlockingThreadRun(base::MessageLoop*) ()
from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f349302365b in content::BrowserThreadImpl::Run(base::MessageLoop*)
() from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f3493b2bc88 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#10 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#11 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f346097b700 (LWP 2488)):
#0  0x00007f34971b4fc0 in malloc () from /lib64/libc.so.6
#1  0x00007f3497165bbe in _nl_make_l10nflist () from /lib64/libc.so.6
#2  0x00007f3497163a67 in _nl_find_domain () from /lib64/libc.so.6
#3  0x00007f34971632fb in __dcigettext () from /lib64/libc.so.6
#4  0x00007f34971bc13c in strerror_r () from /lib64/libc.so.6
#5  0x00007f34971bc06f in strerror () from /lib64/libc.so.6
#6  0x00007f348937ba81 in event_warn () from /lib64/libevent-2.0.so.5
#7  0x00007f34893800d8 in epoll_dispatch () from /lib64/libevent-2.0.so.5
#8  0x00007f348936a0e0 in event_base_loop () from /lib64/libevent-2.0.so.5
#9  0x00007f3493adb2da in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#11 0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#12 0x00007f34930231f8 in
content::BrowserThreadImpl::FileThreadRun(base::MessageLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#13 0x00007f349302364b in content::BrowserThreadImpl::Run(base::MessageLoop*)
() from /lib64/libQt5WebEngineCore.so.5
#14 0x00007f3493b2bc88 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#15 0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#16 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#17 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f346117c700 (LWP 2487)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b20925 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b20a04 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b01c73 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f3493023148 in
content::BrowserThreadImpl::DBThreadRun(base::MessageLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f349302363b in content::BrowserThreadImpl::Run(base::MessageLoop*)
() from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f3493b2bc88 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#10 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#11 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f346197d700 (LWP 2486)):
#0  0x00007f348f9cef79 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b20102 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b2eaa1 in base::PosixDynamicThreadPool::WaitForTask() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b2efcd in base::(anonymous
namespace)::WorkerThread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f346217e700 (LWP 2485)):
#0  0x00007f348f9cef79 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b20102 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b2eaa1 in base::PosixDynamicThreadPool::WaitForTask() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b2efcd in base::(anonymous
namespace)::WorkerThread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f346297f700 (LWP 2484)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3493b20925 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f3493b20a04 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f3493b01c73 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f3493b2bc06 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f3463180700 (LWP 2483)):
#0  0x00007f3497244d0c in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f34972467c4 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007f348937b89e in _warn_helper () from /lib64/libevent-2.0.so.5
#3  0x00007f348937ba94 in event_warn () from /lib64/libevent-2.0.so.5
#4  0x00007f34893800d8 in epoll_dispatch () from /lib64/libevent-2.0.so.5
#5  0x00007f348936a0e0 in event_base_loop () from /lib64/libevent-2.0.so.5
#6  0x00007f3493adb22e in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f3493b130f4 in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f3493afdf35 in base::MessageLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f3493b2bc06 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f3493b280fd in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#11 0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#12 0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f34693ef700 (LWP 2480)):
#0  0x00007f348dd18461 in g_main_context_check () from /lib64/libglib-2.0.so.0
#1  0x00007f348dd189a4 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f349803024b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007f3497e3e343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f349cec6559 in QDBusConnectionManager::run() () from
/lib64/libQt5DBus.so.5
#7  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#8  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f34755cf700 (LWP 2479)):
#0  0x00007f349722b3ed in poll () from /lib64/libc.so.6
#1  0x00007f348e43bf80 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007f348e43db79 in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f347851cda9 in QXcbEventReader::run() () from
/lib64/libQt5XcbQpa.so.5
#4  0x00007f3497e4299a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#5  0x00007f348f9c95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f3497236f6d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f347f0cb940 (LWP 2477)):
#0  0x00007f348f9cebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f3497e4301a in QWaitCondition::wait(QMutex*, unsigned long) () from
/lib64/libQt5Core.so.5
#2  0x00007f34925ad9d2 in QtWebEngineCore::DelegatedFrameNode::preprocess() ()
from /lib64/libQt5WebEngineCore.so.5
#3  0x00007f3491d53b27 in QSGRenderer::preprocess() () from
/lib64/libQt5Quick.so.5
#4  0x00007f3491d5304f in QSGRenderer::renderScene(QSGBindable const&) () from
/lib64/libQt5Quick.so.5
#5  0x00007f3491d53947 in QSGRenderer::renderScene(unsigned int) () from
/lib64/libQt5Quick.so.5
#6  0x00007f349ce50cad in
QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::paintGL() () from
/lib64/libQt5WebEngineWidgets.so.5
#7  0x00007f34988d942d in QOpenGLWidgetPrivate::invokeUserPaint() () from
/lib64/libQt5Widgets.so.5
#8  0x00007f34988b9940 in QWidget::event(QEvent*) () from
/lib64/libQt5Widgets.so.5
#9  0x00007f349ce50f4e in
QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::event(QEvent*) () from
/lib64/libQt5WebEngineWidgets.so.5
#10 0x00007f3498873c0c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt5Widgets.so.5
#11 0x00007f34988790ef in QApplication::notify(QObject*, QEvent*) () from
/lib64/libQt5Widgets.so.5
#12 0x00007f3497fe07aa in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt5Core.so.5
#13 0x00007f34988b26ea in QWidgetPrivate::sendPaintEvent(QRegion const&) ()
from /lib64/libQt5Widgets.so.5
#14 0x00007f34988815d6 in QWidgetBackingStore::doSync() () from
/lib64/libQt5Widgets.so.5
#15 0x00007f3498882151 in QWidgetBackingStore::sync() () from
/lib64/libQt5Widgets.so.5
#16 0x00007f34988a1bef in QWidgetPrivate::syncBackingStore() () from
/lib64/libQt5Widgets.so.5
#17 0x00007f34988b9a18 in QWidget::event(QEvent*) () from
/lib64/libQt5Widgets.so.5
#18 0x00007f34989d357b in QMainWindow::event(QEvent*) () from
/lib64/libQt5Widgets.so.5
#19 0x00007f349b73c917 in KMainWindow::event(QEvent*) () from
/lib64/libKF5XmlGui.so.5
#20 0x00007f349b781835 in KXmlGuiWindow::event(QEvent*) () from
/lib64/libKF5XmlGui.so.5
#21 0x00007f3498873c0c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt5Widgets.so.5
#22 0x00007f34988790ef in QApplication::notify(QObject*, QEvent*) () from
/lib64/libQt5Widgets.so.5
#23 0x00007f3497fe07aa in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt5Core.so.5
#24 0x00007f3497fe284f in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /lib64/libQt5Core.so.5
#25 0x00007f34980301b3 in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () from /lib64/libQt5Core.so.5
#26 0x00007f348dd186ba in g_main_context_dispatch () from
/lib64/libglib-2.0.so.0
#27 0x00007f348dd18a70 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#28 0x00007f348dd18b1c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#29 0x00007f349803022f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#30 0x00007f3497fdf5ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#31 0x00007f3497fe717c in QCoreApplication::exec() () from
/lib64/libQt5Core.so.5
#32 0x000055834c5854e7 in main ()

Reported using DrKonqi

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