[kmail2] [Bug 384739] New: Kmail crashes when trying to preview an e-mail

Frank Danapfel bugzilla_noreply at kde.org
Fri Sep 15 10:46:39 BST 2017 

https://bugs.kde.org/show_bug.cgi?id=384739

            Bug ID: 384739
           Summary: Kmail crashes when trying to preview an e-mail
           Product: kmail2
           Version: 5.5.1
          Platform: Fedora RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: frank.danapfel at googlemail.com
  Target Milestone: ---

Application: kmail (5.5.1)

Qt Version: 5.7.1
Frameworks Version: 5.36.0
Operating System: Linux 4.12.11-300.fc26.x86_64 x86_64
Distribution: "Fedora release 26 (Twenty Six)"

-- Information about the crash:
- Selecting a e-mail to be able to see it in the preview pane

This has started after upgrading from Fedora 25 to 26. The system is using an
Nvidia graphics card wit the Nouveau driver provided by F26 (the reason I
mention this is that on F25 there was an issue with Kmail related to some
locking routines of the mesa packages related to nouveau).

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7face7d83940 (LWP 1568))]

Thread 27 (Thread 0x7fac4c881700 (LWP 1644)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd8fa725 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8fac07 in base::SequencedWorkerPool::Worker::Run() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8fb9a1 in base::SimpleThread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#5  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#6  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7fac4d8b2700 (LWP 1643)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007faced387534 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from
/lib64/libQt5Script.so.5
#2  0x00007faced387579 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*)
() from /lib64/libQt5Script.so.5
#3  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#4  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7fac4eb2d700 (LWP 1629)):
#0  0x00007ffcdddbab52 in clock_gettime ()
#1  0x00007fad0a208ca6 in clock_gettime () from /lib64/libc.so.6
#2  0x00007fad0aea8a91 in qt_gettime() () from /lib64/libQt5Core.so.5
#3  0x00007fad0b003539 in QTimerInfoList::updateCurrentTime() () from
/lib64/libQt5Core.so.5
#4  0x00007fad0b003935 in QTimerInfoList::timerWait(timespec&) () from
/lib64/libQt5Core.so.5
#5  0x00007fad0b004b0c in timerSourcePrepareHelper(GTimerSource*, int*) () from
/lib64/libQt5Core.so.5
#6  0x00007fad0b004bae in timerSourcePrepare(_GSource*, int*) () from
/lib64/libQt5Core.so.5
#7  0x00007facf61a3ac9 in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#8  0x00007facf61a449b in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#9  0x00007facf61a467c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#10 0x00007fad0b004e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#11 0x00007fad0afb560a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#12 0x00007fad0ae0d99a in QThread::exec() () from /lib64/libQt5Core.so.5
#13 0x00007fad0ae11c9e in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#14 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#15 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7fac857fa700 (LWP 1604)):
#0  0x00007face95c45b3 in do_write () from
/usr/lib64/pulseaudio/libpulsecommon-10.0.so
#1  0x00007face95c5578 in do_pstream_read_write () from
/usr/lib64/pulseaudio/libpulsecommon-10.0.so
#2  0x00007face95c5899 in srb_callback () from
/usr/lib64/pulseaudio/libpulsecommon-10.0.so
#3  0x00007face95c611f in srbchannel_rwloop () from
/usr/lib64/pulseaudio/libpulsecommon-10.0.so
#4  0x00007faceb4b07f8 in pa_mainloop_dispatch () from /lib64/libpulse.so.0
#5  0x00007faceb4b0bce in pa_mainloop_iterate () from /lib64/libpulse.so.0
#6  0x00007faceb4b0c50 in pa_mainloop_run () from /lib64/libpulse.so.0
#7  0x00007faceb4beab9 in thread () from /lib64/libpulse.so.0
#8  0x00007face95d6078 in internal_thread_func () from
/usr/lib64/pulseaudio/libpulsecommon-10.0.so
#9  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#10 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7fac85ffb700 (LWP 1603)):
#0  0x00007fad0a2084bc in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007fad0a20a284 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007facf06f8880 in _warn_helper () from /lib64/libevent-2.0.so.5
#3  0x00007facf06f8a44 in event_warn () from /lib64/libevent-2.0.so.5
#4  0x00007facf06fd1e0 in epoll_dispatch () from /lib64/libevent-2.0.so.5
#5  0x00007facf06e7dbe in event_base_loop () from /lib64/libevent-2.0.so.5
#6  0x00007facfd8cb5ad in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#8  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007facfd8fbf66 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#10 0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#11 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#12 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7fac867fc700 (LWP 1602)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd8f0409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8f0437 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8caf5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007facfd8fbf66 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#9  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7fac86ffd700 (LWP 1601)):
#0  0x00007fad06150e0a in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd929172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8f038e in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8cafab in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007facfd8fbf66 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#9  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7fac877fe700 (LWP 1600)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfe078ea0 in cc::SingleThreadTaskGraphRunner::Run() () from
/lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8fb9a1 in base::SimpleThread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#4  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#5  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7fac87fff700 (LWP 1599)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd8f0409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8f0437 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8caf5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007facfd8fbf66 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#9  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7faca0ff9700 (LWP 1598)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd8fa725 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8fac07 in base::SequencedWorkerPool::Worker::Run() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8fb9a1 in base::SimpleThread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#5  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#6  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7faca17fa700 (LWP 1597)):
#0  0x00007fad0a2084bc in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007fad0a20a284 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007facf06f8880 in _warn_helper () from /lib64/libevent-2.0.so.5
#3  0x00007facf06f8a44 in event_warn () from /lib64/libevent-2.0.so.5
#4  0x00007facf06fd1e0 in epoll_dispatch () from /lib64/libevent-2.0.so.5
#5  0x00007facf06e7dbe in event_base_loop () from /lib64/libevent-2.0.so.5
#6  0x00007facfd8cb559 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#8  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007facfd1cca78 in
content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#10 0x00007facfd1cd02b in content::BrowserThreadImpl::Run(base::RunLoop*) ()
from /lib64/libQt5WebEngineCore.so.5
#11 0x00007facfd8fc018 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#12 0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#13 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#14 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7faca1ffb700 (LWP 1596)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd8f0409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8f0437 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8caf5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007facfd1cc9c8 in
content::BrowserThreadImpl::CacheThreadRun(base::RunLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd1cd01b in content::BrowserThreadImpl::Run(base::RunLoop*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007facfd8fc018 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#10 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#11 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7faca27fc700 (LWP 1595)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd8f0409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8f0437 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8caf5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007facfd1cc918 in
content::BrowserThreadImpl::ProcessLauncherThreadRun(base::RunLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd1cd00b in content::BrowserThreadImpl::Run(base::RunLoop*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007facfd8fc018 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#10 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#11 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7faca2ffd700 (LWP 1594)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd8f0409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8f0437 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8caf5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007facfd1cc868 in
content::BrowserThreadImpl::FileUserBlockingThreadRun(base::RunLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd1ccffb in content::BrowserThreadImpl::Run(base::RunLoop*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007facfd8fc018 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#10 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#11 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7faca37fe700 (LWP 1593)):
#0  0x00007fad0a1e922d in write () from /lib64/libc.so.6
#1  0x00007fad0a16722d in _IO_new_file_write () from /lib64/libc.so.6
#2  0x00007fad0a167bcf in __GI__IO_file_xsputn () from /lib64/libc.so.6
#3  0x00007fad0a13b747 in buffered_vfprintf () from /lib64/libc.so.6
#4  0x00007fad0a138786 in vfprintf () from /lib64/libc.so.6
#5  0x00007fad0a20a2d6 in __fprintf_chk () from /lib64/libc.so.6
#6  0x00007facf06f8880 in _warn_helper () from /lib64/libevent-2.0.so.5
#7  0x00007facf06f8a44 in event_warn () from /lib64/libevent-2.0.so.5
#8  0x00007facf06fd1e0 in epoll_dispatch () from /lib64/libevent-2.0.so.5
#9  0x00007facf06e7dbe in event_base_loop () from /lib64/libevent-2.0.so.5
#10 0x00007facfd8cb5ad in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#11 0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#12 0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#13 0x00007facfd1cc7b8 in
content::BrowserThreadImpl::FileThreadRun(base::RunLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#14 0x00007facfd1ccfeb in content::BrowserThreadImpl::Run(base::RunLoop*) ()
from /lib64/libQt5WebEngineCore.so.5
#15 0x00007facfd8fc018 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#16 0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#17 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#18 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7faca3fff700 (LWP 1592)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd8f0409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8f0437 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8caf5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007facfd1cc708 in
content::BrowserThreadImpl::DBThreadRun(base::RunLoop*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd1ccfdb in content::BrowserThreadImpl::Run(base::RunLoop*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007facfd8fc018 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#10 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#11 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7facb8e31700 (LWP 1591)):
#0  0x00007fad06150e0a in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd929172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8ff229 in base::PosixDynamicThreadPool::WaitForTask() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8ff78b in base::(anonymous
namespace)::WorkerThread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#5  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#6  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7facb983f700 (LWP 1590)):
#0  0x00007fad06150e0a in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd929172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8ff229 in base::PosixDynamicThreadPool::WaitForTask() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8ff78b in base::(anonymous
namespace)::WorkerThread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#5  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#6  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7facba040700 (LWP 1589)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facfd8f0409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007facfd8f0437 in base::WaitableEvent::Wait() () from
/lib64/libQt5WebEngineCore.so.5
#3  0x00007facfd8caf5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#4  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#5  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#6  0x00007facfd8fbf66 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#8  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#9  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7facba841700 (LWP 1588)):
#0  0x00007fad0a2084e9 in __lll_unlock_wake_private () from /lib64/libc.so.6
#1  0x00007fad0a20a31c in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007facf06f8880 in _warn_helper () from /lib64/libevent-2.0.so.5
#3  0x00007facf06f8a44 in event_warn () from /lib64/libevent-2.0.so.5
#4  0x00007facf06fd1e0 in epoll_dispatch () from /lib64/libevent-2.0.so.5
#5  0x00007facf06e7dbe in event_base_loop () from /lib64/libevent-2.0.so.5
#6  0x00007facfd8cb5ad in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/lib64/libQt5WebEngineCore.so.5
#7  0x00007facfd8c7828 in base::MessageLoop::RunHandler() () from
/lib64/libQt5WebEngineCore.so.5
#8  0x00007facfd8e426b in base::RunLoop::Run() () from
/lib64/libQt5WebEngineCore.so.5
#9  0x00007facfd8fbf66 in base::Thread::ThreadMain() () from
/lib64/libQt5WebEngineCore.so.5
#10 0x00007facfd8f806b in base::(anonymous namespace)::ThreadFunc(void*) ()
from /lib64/libQt5WebEngineCore.so.5
#11 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#12 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7facc3fff700 (LWP 1574)):
#0  0x00007ffcdddbab52 in clock_gettime ()
#1  0x00007fad0a208ca6 in clock_gettime () from /lib64/libc.so.6
#2  0x00007fad0aea8a91 in qt_gettime() () from /lib64/libQt5Core.so.5
#3  0x00007fad0b003539 in QTimerInfoList::updateCurrentTime() () from
/lib64/libQt5Core.so.5
#4  0x00007fad0b003935 in QTimerInfoList::timerWait(timespec&) () from
/lib64/libQt5Core.so.5
#5  0x00007fad0b004b0c in timerSourcePrepareHelper(GTimerSource*, int*) () from
/lib64/libQt5Core.so.5
#6  0x00007fad0b004bae in timerSourcePrepare(_GSource*, int*) () from
/lib64/libQt5Core.so.5
#7  0x00007facf61a3ac9 in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#8  0x00007facf61a449b in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#9  0x00007facf61a467c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#10 0x00007fad0b004e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#11 0x00007fad0afb560a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#12 0x00007fad0ae0d99a in QThread::exec() () from /lib64/libQt5Core.so.5
#13 0x00007fad0ae11c9e in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#14 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#15 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7facd0ce9700 (LWP 1573)):
#0  0x00007facf6178346 in g_ptr_array_set_size () from /lib64/libglib-2.0.so.0
#1  0x00007facf61a39b1 in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#2  0x00007facf61a449b in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#3  0x00007facf61a467c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#4  0x00007fad0b004e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#5  0x00007fad0afb560a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#6  0x00007fad0ae0d99a in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007fad0ae11c9e in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#8  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#9  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7facd1575700 (LWP 1572)):
#0  0x00007ffcdddbab52 in clock_gettime ()
#1  0x00007fad0a208ca6 in clock_gettime () from /lib64/libc.so.6
#2  0x00007fad0aea8a91 in qt_gettime() () from /lib64/libQt5Core.so.5
#3  0x00007fad0b003539 in QTimerInfoList::updateCurrentTime() () from
/lib64/libQt5Core.so.5
#4  0x00007fad0b003935 in QTimerInfoList::timerWait(timespec&) () from
/lib64/libQt5Core.so.5
#5  0x00007fad0b004b0c in timerSourcePrepareHelper(GTimerSource*, int*) () from
/lib64/libQt5Core.so.5
#6  0x00007fad0b004bae in timerSourcePrepare(_GSource*, int*) () from
/lib64/libQt5Core.so.5
#7  0x00007facf61a3ac9 in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#8  0x00007facf61a449b in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#9  0x00007facf61a467c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#10 0x00007fad0b004e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#11 0x00007fad0afb560a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#12 0x00007fad0ae0d99a in QThread::exec() () from /lib64/libQt5Core.so.5
#13 0x00007fad0ae11c9e in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#14 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#15 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7facd2786700 (LWP 1571)):
#0  0x00007ffcdddbab52 in clock_gettime ()
#1  0x00007fad0a208ca6 in clock_gettime () from /lib64/libc.so.6
#2  0x00007fad0aea8a91 in qt_gettime() () from /lib64/libQt5Core.so.5
#3  0x00007fad0b003539 in QTimerInfoList::updateCurrentTime() () from
/lib64/libQt5Core.so.5
#4  0x00007fad0b003935 in QTimerInfoList::timerWait(timespec&) () from
/lib64/libQt5Core.so.5
#5  0x00007fad0b004b0c in timerSourcePrepareHelper(GTimerSource*, int*) () from
/lib64/libQt5Core.so.5
#6  0x00007fad0b004bae in timerSourcePrepare(_GSource*, int*) () from
/lib64/libQt5Core.so.5
#7  0x00007facf61a3ac9 in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#8  0x00007facf61a449b in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#9  0x00007facf61a467c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#10 0x00007fad0b004e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#11 0x00007fad0afb560a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#12 0x00007fad0ae0d99a in QThread::exec() () from /lib64/libQt5Core.so.5
#13 0x00007fad0c2fda39 in QDBusConnectionManager::run() () from
/lib64/libQt5DBus.so.5
#14 0x00007fad0ae11c9e in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#15 0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#16 0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7facd349c700 (LWP 1570)):
#0  0x00007fad0615090b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007facd74926ab in util_queue_thread_func () from
/usr/lib64/dri/nouveau_dri.so
#2  0x00007facd74923e7 in impl_thrd_routine () from
/usr/lib64/dri/nouveau_dri.so
#3  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#4  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7facde23e700 (LWP 1569)):
#0  0x00007fad0a1edacd in poll () from /lib64/libc.so.6
#1  0x00007facf5898c97 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007facf589aa8a in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007face11ccba9 in QXcbEventReader::run() () from
/lib64/libQt5XcbQpa.so.5
#4  0x00007fad0ae11c9e in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#5  0x00007fad0614a36d in start_thread () from /lib64/libpthread.so.0
#6  0x00007fad0a1f9bbf in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7face7d83940 (LWP 1568)):
[KCrash Handler]
#6  0x00007fad0a11f69b in raise () from /lib64/libc.so.6
#7  0x00007fad0a1214a0 in abort () from /lib64/libc.so.6
#8  0x00007fad0a117d5a in __assert_fail_base () from /lib64/libc.so.6
#9  0x00007fad0a117dd2 in __assert_fail () from /lib64/libc.so.6
#10 0x00007facd6f3cd1d in nouveau_pushbuf_data () from
/lib64/libdrm_nouveau.so.2
#11 0x00007facd6f3ccd6 in nouveau_pushbuf_data () from
/lib64/libdrm_nouveau.so.2
#12 0x00007facd6f3cda4 in pushbuf_submit.isra () from
/lib64/libdrm_nouveau.so.2
#13 0x00007facd6f3d04f in pushbuf_flush () from /lib64/libdrm_nouveau.so.2
#14 0x00007facd6f3dbe0 in nouveau_pushbuf_kick () from
/lib64/libdrm_nouveau.so.2
#15 0x00007facd773fb16 in nvc0_flush () from /usr/lib64/dri/nouveau_dri.so
#16 0x00007facd73904f6 in st_context_flush () from
/usr/lib64/dri/nouveau_dri.so
#17 0x00007facd752499a in dri_flush () from /usr/lib64/dri/nouveau_dri.so
#18 0x00007facdcec327f in loader_dri3_swap_buffers_msc () from
/lib64/libGLX_mesa.so.0
#19 0x00007fad0fafb66d in QGLXContext::swapBuffers(QPlatformSurface*) () from
/usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#20 0x00007fad0b323fda in QOpenGLContext::swapBuffers(QSurface*) () from
/lib64/libQt5Gui.so.5
#21 0x00007fad0b5318cf in QPlatformBackingStore::composeAndFlush(QWindow*,
QRegion const&, QPoint const&, QPlatformTextureList*, QOpenGLContext*, bool) ()
from /lib64/libQt5Gui.so.5
#22 0x00007face11ec3b7 in QXcbBackingStore::composeAndFlush(QWindow*, QRegion
const&, QPoint const&, QPlatformTextureList*, QOpenGLContext*, bool) () from
/lib64/libQt5XcbQpa.so.5
#23 0x00007fad0b80e049 in QWidgetBackingStore::qt_flush(QWidget*, QRegion
const&, QBackingStore*, QWidget*, QPoint const&, QPlatformTextureList*,
QWidgetBackingStore*) () from /lib64/libQt5Widgets.so.5
#24 0x00007fad0b80f76e in QWidgetBackingStore::flush(QWidget*) () from
/lib64/libQt5Widgets.so.5
#25 0x00007fad0b810e18 in QWidgetBackingStore::doSync() () from
/lib64/libQt5Widgets.so.5
#26 0x00007fad0b81102d in QWidgetBackingStore::sync() () from
/lib64/libQt5Widgets.so.5
#27 0x00007fad0b8301af in QWidgetPrivate::syncBackingStore() () from
/lib64/libQt5Widgets.so.5
#28 0x00007fad0b847ef8 in QWidget::event(QEvent*) () from
/lib64/libQt5Widgets.so.5
#29 0x00007fad0b941f2b in QMainWindow::event(QEvent*) () from
/lib64/libQt5Widgets.so.5
#30 0x00007fad0e390a57 in KMainWindow::event(QEvent*) () from
/lib64/libKF5XmlGui.so.5
#31 0x00007fad0e3d5a65 in KXmlGuiWindow::event(QEvent*) () from
/lib64/libKF5XmlGui.so.5
#32 0x00007fad0b8015dc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt5Widgets.so.5
#33 0x00007fad0b808c74 in QApplication::notify(QObject*, QEvent*) () from
/lib64/libQt5Widgets.so.5
#34 0x00007fad0afb6627 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt5Core.so.5
#35 0x00007fad0afb885b in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /lib64/libQt5Core.so.5
#36 0x00007fad0b004dd3 in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () from /lib64/libQt5Core.so.5
#37 0x00007facf61a4247 in g_main_context_dispatch () from
/lib64/libglib-2.0.so.0
#38 0x00007facf61a45e8 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#39 0x00007facf61a467c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#40 0x00007fad0b004e4f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#41 0x00007fad0afb560a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#42 0x00007fad0afbd27c in QCoreApplication::exec() () from
/lib64/libQt5Core.so.5
#43 0x000055b6bdf187dd in main ()

Possible duplicates by query: bug 384565, bug 379720, bug 371935, bug 370937,
bug 369017.

Reported using DrKonqi

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