371859 – Segfault of kmail when removing a mail

Bug 371859 - Segfault of kmail when removing a mail

Summary: Segfault of kmail when removing a mail

Status:	RESOLVED DUPLICATE of bug 368371

Alias:	None

Product:	kmail2
Classification:	Applications
Component:	general (show other bugs)
Version:	unspecified
Platform:	openSUSE Linux

Importance:	NOR crash
Target Milestone:	---
Assignee:	kdepim bugs

URL:
Keywords:	drkonqi

Depends on:
Blocks:

Reported:	2016-10-30 10:26 UTC by Michael.Calmer
Modified:	2016-11-02 15:55 UTC (History)
CC List:	1 user (show)

See Also:
Latest Commit:
Version Fixed In:

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Description Michael.Calmer 2016-10-30 10:26:23 UTC

Application: kmail (5.3.0 (QtWebEngine))

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.4.24-1-default x86_64
Distribution: "openSUSE Leap 42.2"

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

I removed an email.
I had similar crashed before while changing to a different email.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f96a1d13940 (LWP 7189))]

Thread 34 (Thread 0x7f95c5cf0700 (LWP 7268)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968b002739 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968b002efd in base::SequencedWorkerPool::Worker::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968b003720 in base::SimpleThread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 33 (Thread 0x7f96475f8700 (LWP 7259)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9685cfa93b in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007f9685cfa969 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 32 (Thread 0x7f9648864700 (LWP 7247)):
#0  0x00007f969eb1851d in read () from /lib64/libc.so.6
#1  0x00007f96942f5670 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f96942b4e49 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f96942b52a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#8  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 31 (Thread 0x7f96496d6700 (LWP 7244)):
#0  0x00007f969eb1c49d in poll () from /lib64/libc.so.6
#1  0x00007f96942b5314 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 30 (Thread 0x7f964bf6c700 (LWP 7237)):
#0  0x00007f969eb1851d in read () from /lib64/libc.so.6
#1  0x00007f96942f5670 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f96942b4e49 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f96942b52a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#8  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 29 (Thread 0x7f964c895700 (LWP 7229)):
#0  0x00007f96942f67d4 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f96942b5436 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#3  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#5  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#6  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 28 (Thread 0x7f965103e700 (LWP 7224)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968ae5e280 in mojo::system::Waiter::Wait(unsigned long, unsigned int*) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968ae4bd2b in mojo::system::Core::WaitManyInternal(unsigned int const*, unsigned int const*, unsigned int, unsigned long, unsigned int*, mojo::system::HandleSignalsState*) () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968ae4bfa5 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 /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968ae48897 in MojoWaitMany () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f968c64e6ba in mojo::common::MessagePumpMojo::DoInternalWork(mojo::common::MessagePumpMojo::RunState const&, bool) () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f968c64e9d1 in mojo::common::MessagePumpMojo::DoRunLoop(mojo::common::MessagePumpMojo::RunState*, base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968c64eac2 in mojo::common::MessagePumpMojo::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#13 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x7f965183f700 (LWP 7223)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968b002739 in base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968b002efd in base::SequencedWorkerPool::Worker::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968b003720 in base::SimpleThread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7f965a041700 (LWP 7222)):
#0  0x00007f9682b368a0 in ?? () from /usr/lib64/libpulse.so.0
#1  0x00007f967c490bd1 in ?? () from /usr/lib64/pulseaudio/libpulsecommon-9.0.so
#2  0x00007f967c490fad in ?? () from /usr/lib64/pulseaudio/libpulsecommon-9.0.so
#3  0x00007f967c49184a in ?? () from /usr/lib64/pulseaudio/libpulsecommon-9.0.so
#4  0x00007f9682b37a14 in pa_mainloop_dispatch () from /usr/lib64/libpulse.so.0
#5  0x00007f9682b37dea in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0
#6  0x00007f9682b37e90 in pa_mainloop_run () from /usr/lib64/libpulse.so.0
#7  0x00007f9682b46006 in ?? () from /usr/lib64/libpulse.so.0
#8  0x00007f967c4a1408 in ?? () from /usr/lib64/pulseaudio/libpulsecommon-9.0.so
#9  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7f965a842700 (LWP 7221)):
#0  0x00007f969eb3113b in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f969eb32cd6 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007f967f52dfdf in ?? () from /usr/lib64/libevent-2.0.so.5
#3  0x00007f967f52e1b7 in event_warn () from /usr/lib64/libevent-2.0.so.5
#4  0x00007f967f532468 in ?? () from /usr/lib64/libevent-2.0.so.5
#5  0x00007f967f51e477 in event_base_loop () from /usr/lib64/libevent-2.0.so.5
#6  0x00007f968afb8dbe in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7f965b043700 (LWP 7220)):
[KCrash Handler]
#6  0x00007f96745ded2f in nouveau_fence_trigger_work (fence=fence@entry=0x2cb0820) at nouveau_fence.c:55
#7  0x00007f96745def56 in nouveau_fence_update (screen=0x1d1b940, flushed=flushed@entry=false) at nouveau_fence.c:132
#8  0x00007f96745defec in nouveau_fence_signalled (fence=0x3600e80) at nouveau_fence.c:160
#9  0x00007f96743abaeb in st_check_sync (ctx=<optimized out>, obj=0x3557b10) at state_tracker/st_cb_syncobj.c:90
#10 0x00007f967432d60d in _mesa_ClientWaitSync (sync=<optimized out>, flags=0, timeout=0) at main/syncobj.c:334
#11 0x00007f968ae324f0 in gfx::GLFenceARB::HasCompleted() () from /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f968b754a8c in gpu::gles2::CommandsCompletedQuery::Process(bool) () from /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f968b754b5d in gpu::gles2::QueryManager::ProcessPendingQueries(bool) () from /usr/lib64/libQt5WebEngineCore.so.5
#14 0x00007f968b6fd9f9 in gpu::gles2::GLES2DecoderImpl::ProcessPendingQueries(bool) () from /usr/lib64/libQt5WebEngineCore.so.5
#15 0x00007f968b73f108 in gpu::GpuScheduler::HasMoreWork() () from /usr/lib64/libQt5WebEngineCore.so.5
#16 0x00007f968ae04d35 in content::GpuCommandBufferStub::ScheduleDelayedWork(long) () from /usr/lib64/libQt5WebEngineCore.so.5
#17 0x00007f968ae07105 in content::GpuCommandBufferStub::OnMessageReceived(IPC::Message const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#18 0x00007f968ade99b2 in content::MessageRouter::RouteMessage(IPC::Message const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#19 0x00007f968ae01c6c in content::GpuChannel::HandleMessage() () from /usr/lib64/libQt5WebEngineCore.so.5
#20 0x00007f968b0288ce in base::debug::TaskAnnotator::RunTask(char const*, char const*, base::PendingTask const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#21 0x00007f968afd8744 in base::MessageLoop::RunTask(base::PendingTask const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#22 0x00007f968afd8a21 in base::MessageLoop::DeferOrRunPendingTask(base::PendingTask const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#23 0x00007f968afdb753 in base::MessageLoop::DoWork() () from /usr/lib64/libQt5WebEngineCore.so.5
#24 0x00007f968afdbb59 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#25 0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#26 0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#27 0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#28 0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#29 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#30 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7f965b844700 (LWP 7219)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968aff926f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968aff9344 in base::WaitableEvent::Wait() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968afdbb9b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7f965c045700 (LWP 7218)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968a9ff569 in cc::TaskGraphRunner::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968b003720 in base::SimpleThread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7f965c846700 (LWP 7217)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968aff926f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968aff9344 in base::WaitableEvent::Wait() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968afdbb9b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7f965d047700 (LWP 7216)):
#0  0x00007f969eb3113b in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f969eb32cd6 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007f967f52dfdf in ?? () from /usr/lib64/libevent-2.0.so.5
#3  0x00007f967f52e1b7 in event_warn () from /usr/lib64/libevent-2.0.so.5
#4  0x00007f967f532468 in ?? () from /usr/lib64/libevent-2.0.so.5
#5  0x00007f967f51e477 in event_base_loop () from /usr/lib64/libevent-2.0.so.5
#6  0x00007f968afb8f15 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f968a691e85 in content::BrowserThreadImpl::IOThreadRun(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f968a691f9b in content::BrowserThreadImpl::Run(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#14 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7f965d848700 (LWP 7215)):
#0  0x00007f969eb3113b in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f969eb32cd6 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007f967f52dfdf in ?? () from /usr/lib64/libevent-2.0.so.5
#3  0x00007f967f52e1b7 in event_warn () from /usr/lib64/libevent-2.0.so.5
#4  0x00007f967f532468 in ?? () from /usr/lib64/libevent-2.0.so.5
#5  0x00007f967f51e477 in event_base_loop () from /usr/lib64/libevent-2.0.so.5
#6  0x00007f968afb8dbe in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f968a691e05 in content::BrowserThreadImpl::CacheThreadRun(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f968a691ffb in content::BrowserThreadImpl::Run(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#14 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7f965e049700 (LWP 7214)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968aff926f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968aff9344 in base::WaitableEvent::Wait() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968afdbb9b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f968a691d85 in content::BrowserThreadImpl::ProcessLauncherThreadRun(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968a691feb in content::BrowserThreadImpl::Run(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7f965e84a700 (LWP 7213)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968aff926f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968aff9344 in base::WaitableEvent::Wait() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968afdbb9b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f968a691d05 in content::BrowserThreadImpl::FileUserBlockingThreadRun(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968a691fdb in content::BrowserThreadImpl::Run(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f965f04b700 (LWP 7212)):
#0  0x00007f969eb3113b in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f969eb32cd6 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007f967f52dfdf in ?? () from /usr/lib64/libevent-2.0.so.5
#3  0x00007f967f52e1b7 in event_warn () from /usr/lib64/libevent-2.0.so.5
#4  0x00007f967f532468 in ?? () from /usr/lib64/libevent-2.0.so.5
#5  0x00007f967f51e477 in event_base_loop () from /usr/lib64/libevent-2.0.so.5
#6  0x00007f968afb8dbe in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f968a691c85 in content::BrowserThreadImpl::FileThreadRun(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f968a691fcb in content::BrowserThreadImpl::Run(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#14 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f965f84c700 (LWP 7211)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968aff926f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968aff9344 in base::WaitableEvent::Wait() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968afdbb9b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f968a691c05 in content::BrowserThreadImpl::DBThreadRun(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968a691fbb in content::BrowserThreadImpl::Run(base::MessageLoop*) () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f966004d700 (LWP 7210)):
#0  0x00007f9694ad4458 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968aff8b12 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968b006556 in base::PosixDynamicThreadPool::WaitForTask() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968b006746 in base::(anonymous namespace)::WorkerThread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f966084e700 (LWP 7209)):
#0  0x00007f9694ad4458 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968aff8b12 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968b006556 in base::PosixDynamicThreadPool::WaitForTask() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968b006746 in base::(anonymous namespace)::WorkerThread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f966104f700 (LWP 7208)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f968aff926f in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f968aff9344 in base::WaitableEvent::Wait() () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f968afdbb9b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f9661a81700 (LWP 7207)):
#0  0x00007f969eb1857d in write () from /lib64/libc.so.6
#1  0x00007f969eaae840 in _IO_new_file_write () from /lib64/libc.so.6
#2  0x00007f969eaade63 in new_do_write () from /lib64/libc.so.6
#3  0x00007f969eaaee46 in __GI__IO_file_xsputn () from /lib64/libc.so.6
#4  0x00007f969ea85b1b in buffered_vfprintf () from /lib64/libc.so.6
#5  0x00007f969ea82e8e in vfprintf () from /lib64/libc.so.6
#6  0x00007f969eb32d33 in __fprintf_chk () from /lib64/libc.so.6
#7  0x00007f967f52dfdf in ?? () from /usr/lib64/libevent-2.0.so.5
#8  0x00007f967f52e1b7 in event_warn () from /usr/lib64/libevent-2.0.so.5
#9  0x00007f967f532468 in ?? () from /usr/lib64/libevent-2.0.so.5
#10 0x00007f967f51e477 in event_base_loop () from /usr/lib64/libevent-2.0.so.5
#11 0x00007f968afb8dbe in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f968afec182 in base::RunLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f968afd7c25 in base::MessageLoop::Run() () from /usr/lib64/libQt5WebEngineCore.so.5
#14 0x00007f968b003aa0 in base::Thread::ThreadMain() () from /usr/lib64/libQt5WebEngineCore.so.5
#15 0x00007f968b00047e in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib64/libQt5WebEngineCore.so.5
#16 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#17 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f9663c44700 (LWP 7203)):
#0  0x00007f96942c37f0 in g_poll () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f96942b5314 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f9664445700 (LWP 7201)):
#0  0x00007f96942f67b0 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f96942b5205 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f9669494700 (LWP 7199)):
#0  0x00007f969eb1c49d in poll () from /lib64/libc.so.6
#1  0x00007f96942b5314 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f9669ca5700 (LWP 7197)):
#0  0x00007f96942b49e8 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f96942b5230 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f966a4a6700 (LWP 7195)):
#0  0x00007f969eb1c49d in poll () from /lib64/libc.so.6
#1  0x00007f96942b5314 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f966aca7700 (LWP 7193)):
#0  0x00007f969eb3118f in __libc_enable_asynccancel () from /lib64/libc.so.6
#1  0x00007f969eb1c492 in poll () from /lib64/libc.so.6
#2  0x00007f96942b5314 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f966bb3a700 (LWP 7192)):
#0  0x00007f969eb1851d in read () from /lib64/libc.so.6
#1  0x00007f96942f5670 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f96942b4e49 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f96942b52a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#8  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f966cd72700 (LWP 7191)):
#0  0x00007f969f42040a in QMutex::lock() () from /usr/lib64/libQt5Core.so.5
#1  0x00007f969f63a925 in ?? () from /usr/lib64/libQt5Core.so.5
#2  0x00007f96942b4da1 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f96942b52a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f969f63a30b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f969f422f1a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#8  0x00007f969dac31d5 in ?? () from /usr/lib64/libQt5DBus.so.5
#9  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#10 0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f9676197700 (LWP 7190)):
#0  0x00007f969eb1c49d in poll () from /lib64/libc.so.6
#1  0x00007f9691fc13e2 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f9691fc2fcf in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f9677c79529 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f969f4279e9 in ?? () from /usr/lib64/libQt5Core.so.5
#5  0x00007f9694acf734 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f969eb24d3d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f96a1d13940 (LWP 7189)):
#0  0x00007f9694ad40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f969f42865b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f9689bd4b1d in QtWebEngineCore::DelegatedFrameNode::preprocess (this=0x35bd210) at /usr/src/debug/qtwebengine-opensource-src-5.6.1/src/core/delegated_frame_node.cpp:426
#3  0x00007f9688150f30 in QSGRenderer::preprocess() () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f96881512e9 in QSGRenderer::renderScene(QSGBindable const&) () from /usr/lib64/libQt5Quick.so.5
#5  0x00007f9688151b57 in QSGRenderer::renderScene(unsigned int) () from /usr/lib64/libQt5Quick.so.5
#6  0x00007f9695b6493a in QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::paintGL (this=0x35f1e20) at render_widget_host_view_qt_delegate_widget.cpp:347
#7  0x00007f96a035033f in ?? () from /usr/lib64/libQt5Widgets.so.5
#8  0x00007f96a03329b7 in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#9  0x00007f9695b64fdc in QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::event (this=0x35f1e20, event=0x7ffff71f1050) at render_widget_host_view_qt_delegate_widget.cpp:311
#10 0x00007f96a02f0e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#11 0x00007f96a02f549a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#12 0x00007f969f5e9fa5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#13 0x00007f96a032bbaa in QWidgetPrivate::sendPaintEvent(QRegion const&) () from /usr/lib64/libQt5Widgets.so.5
#14 0x00007f96a032c19a in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#15 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#16 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#17 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#18 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#19 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#20 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#21 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#22 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#23 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#24 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#25 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#26 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#27 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#28 0x00007f96a032cc24 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#29 0x00007f96a032cc24 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#30 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#31 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#32 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#33 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#34 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#35 0x00007f96a032cdac in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#36 0x00007f96a032cc24 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#37 0x00007f96a032bd26 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#38 0x00007f96a02fd312 in ?? () from /usr/lib64/libQt5Widgets.so.5
#39 0x00007f96a02fe4b9 in ?? () from /usr/lib64/libQt5Widgets.so.5
#40 0x00007f96a031de0f in QWidgetPrivate::syncBackingStore() () from /usr/lib64/libQt5Widgets.so.5
#41 0x00007f96a03325f5 in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#42 0x00007f96a04430cb in QMainWindow::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#43 0x00007f969e55d4f7 in KMainWindow::event(QEvent*) () from /usr/lib64/libKF5XmlGui.so.5
#44 0x00007f969e599865 in KXmlGuiWindow::event(QEvent*) () from /usr/lib64/libKF5XmlGui.so.5
#45 0x00007f96a02f0e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#46 0x00007f96a02f549a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#47 0x00007f969f5e9fa5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#48 0x00007f969f5ebd8a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#49 0x00007f969f63ac63 in ?? () from /usr/lib64/libQt5Core.so.5
#50 0x00007f96942b5134 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#51 0x00007f96942b5388 in ?? () from /usr/lib64/libglib-2.0.so.0
#52 0x00007f96942b542c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#53 0x00007f969f63a2ec in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#54 0x00007f969f5e7fbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#55 0x00007f969f5efea6 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#56 0x0000000000403ceb in main (argc=1, argv=0x7ffff71f4078) at /usr/src/debug/kdepim-16.08.1/kmail/src/main.cpp:161

Reported using DrKonqi

Comment 1 Jan-Matthias Braun 2016-10-30 19:26:27 UTC

Hi Michael,

I do have a question. I am experiencing problems with current QtWebEngine based kmail too: Sometimes, the mail display will become empty after a short delay. Changing to another mail and then back has a slight chance of not triggering this behaviour. If the mail display is blank and I trigger any message related, e.g., reply, forward, delete, kmail crashes.
But if I redisplay the message and do the same action while the display is intact, everything will work fine.

Do you observe similar behaviour? Or should I file a new bug.

My backtrace hints to QtWebEngine. But unfortunately, I am using self-compiled qt 5.7 and the debug build for QtWebEngine is exhausting my disk space, i.e., my backtrace is worthless.

Cheers,

Jan

Comment 2 Michael.Calmer 2016-10-31 12:57:43 UTC

(In reply to Jan-Matthias Braun from comment #1)
> I do have a question. I am experiencing problems with current QtWebEngine
> based kmail too: Sometimes, the mail display will become empty after a short
> delay. Changing to another mail and then back has a slight chance of not
> triggering this behaviour. If the mail display is blank and I trigger any
> message related, e.g., reply, forward, delete, kmail crashes.

My crash happens not only while removing a mail. 

> But if I redisplay the message and do the same action while the display is
> intact, everything will work fine.

Well, I cannot make the message visible. "redisplay" is not really working for me.

> Do you observe similar behaviour? Or should I file a new bug.

Sounds a bit similar to what I see. 

> My backtrace hints to QtWebEngine. But unfortunately, I am using
> self-compiled qt 5.7 and the debug build for QtWebEngine is exhausting my
> disk space, i.e., my backtrace is worthless.

I also saw other bugreports which point to this component together with the use of the "nouveau" driver.

Comment 3 Jan-Matthias Braun 2016-11-01 12:13:36 UTC

(In reply to Michael.Calmer from comment #2)
> (In reply to Jan-Matthias Braun from comment #1)
> > I do have a question. I am experiencing problems with current QtWebEngine
> > based kmail too: Sometimes, the mail display will become empty after a short
> > delay. Changing to another mail and then back has a slight chance of not
> > triggering this behaviour. If the mail display is blank and I trigger any
> > message related, e.g., reply, forward, delete, kmail crashes.
> 
> My crash happens not only while removing a mail. 

action, I wanted to write: any nessage releted action. ^^

> > But if I redisplay the message and do the same action while the display is
> > intact, everything will work fine.
> 
> Well, I cannot make the message visible. "redisplay" is not really working
> for me.

So you never see the message? I can at least see it shortly before it vanishes...

> > Do you observe similar behaviour? Or should I file a new bug.
> 
> Sounds a bit similar to what I see. 
> 
> > My backtrace hints to QtWebEngine. But unfortunately, I am using
> > self-compiled qt 5.7 and the debug build for QtWebEngine is exhausting my
> > disk space, i.e., my backtrace is worthless.
> 
> I also saw other bugreports which point to this component together with the
> use of the "nouveau" driver.

I am using an up-to-date proprietary nvidia driver.

I will try to get some useful debug information.

Comment 4 Christoph Feck 2016-11-02 15:55:39 UTC


*** This bug has been marked as a duplicate of bug 368371 ***