[kmail2] [Bug 382967] New: Kmail crashes when replying to certain addresses

Say-Tar Goh bugzilla_noreply at kde.org
Mon Jul 31 17:28:45 BST 2017


https://bugs.kde.org/show_bug.cgi?id=382967

            Bug ID: 382967
           Summary: Kmail crashes when replying to certain addresses
           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: clxcoltz at gmail.com
  Target Milestone: ---

Application: kmail (5.5.1)

Qt Version: 5.7.1
Frameworks Version: 5.36.0
Operating System: Linux 4.11.11-300.fc26.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed: Reply to certain emails from
gmail (but not others). Simply clicking "reply" inside my gmail inbox will
trigger the crash, though only when reply to certain senders, particularly
those with *google.com domains. Reply to many other senders seem to be okay.

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f44566f2940 (LWP 27264))]

Thread 31 (Thread 0x7f43b57bf700 (LWP 27396)):
#0  0x00007f4474ad3d1a in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c2ac172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c282229 in base::PosixDynamicThreadPool::WaitForTask() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c28278b in base::(anonymous
namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 30 (Thread 0x7f43b675f700 (LWP 27347)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c27d725 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c27dc07 in base::SequencedWorkerPool::Worker::Run() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c27e9a1 in base::SimpleThread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 29 (Thread 0x7f43b77fe700 (LWP 27346)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f445bcf5534 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at
/lib64/libQt5Script.so.5
#2  0x00007f445bcf5579 in  () at /lib64/libQt5Script.so.5
#3  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 28 (Thread 0x7f43b7fff700 (LWP 27334)):
#0  0x00007f4478b70a9d in poll () at /lib64/libc.so.6
#1  0x00007f4464b12569 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f4464b1267c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f4479987e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f447993860a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f447979099a in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f4479794c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 27 (Thread 0x7f43f27fc700 (LWP 27312)):
#0  0x00007f4478b70a9d in poll () at /lib64/libc.so.6
#1  0x00007f4459e2db71 in poll_func () at /lib64/libpulse.so.0
#2  0x00007f4459e1f530 in pa_mainloop_poll () at /lib64/libpulse.so.0
#3  0x00007f4459e1fbc0 in pa_mainloop_iterate () at /lib64/libpulse.so.0
#4  0x00007f4459e1fc50 in pa_mainloop_run () at /lib64/libpulse.so.0
#5  0x00007f4459e2dab9 in thread () at /lib64/libpulse.so.0
#6  0x00007f4457f45078 in internal_thread_func () at
/usr/lib64/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 26 (Thread 0x7f43f2ffd700 (LWP 27311)):
#0  0x00007f4474ad3d1a in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c2ac172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c27338e in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c24dfab in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f446c27ef66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f43f37fe700 (LWP 27310)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c9fbea0 in cc::SingleThreadTaskGraphRunner::Run() () at
/lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c27e9a1 in base::SimpleThread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#5  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f43f3fff700 (LWP 27309)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c273409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c273437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c24df5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f446c27ef66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f440cff9700 (LWP 27308)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c27d725 in
base::SequencedWorkerPool::Inner::ThreadLoop(base::SequencedWorkerPool::Worker*)
() at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c27dc07 in base::SequencedWorkerPool::Worker::Run() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c27e9a1 in base::SimpleThread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f440d7fa700 (LWP 27307)):
[KCrash Handler]
#6  0x00007f446c6b4075 in
net::ChannelIDService::LookupChannelID(base::TimeTicks const&,
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >
const&, std::unique_ptr<crypto::ECPrivateKey,
std::default_delete<crypto::ECPrivateKey> >*, bool, base::Callback<void (int),
(base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&,
net::ChannelIDService::Request*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f446c6b4618 in
net::ChannelIDService::GetOrCreateChannelID(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&,
std::unique_ptr<crypto::ECPrivateKey, std::default_delete<crypto::ECPrivateKey>
>*, base::Callback<void (int), (base::internal::CopyMode)1,
(base::internal::RepeatMode)1> const&, net::ChannelIDService::Request*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f446c7ef475 in net::SSLClientSocketImpl::DoChannelIDLookup() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f446c7f3058 in net::SSLClientSocketImpl::DoHandshakeLoop(int) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f446c7f324e in net::SSLClientSocketImpl::OnHandshakeIOComplete(int)
() at /lib64/libQt5WebEngineCore.so.5
#11 0x00007f446c7f33bf in net::SSLClientSocketImpl::RetryAllOperations() () at
/lib64/libQt5WebEngineCore.so.5
#12 0x00007f446c7961c3 in
net::TCPClientSocket::DidCompleteReadWrite(base::Callback<void (int),
(base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&, int) () at
/lib64/libQt5WebEngineCore.so.5
#13 0x00007f446c7983d3 in
net::TCPSocketPosix::ReadCompleted(scoped_refptr<net::IOBuffer> const&,
base::Callback<void (int), (base::internal::CopyMode)1,
(base::internal::RepeatMode)1> const&, int) () at
/lib64/libQt5WebEngineCore.so.5
#14 0x00007f446c8701f6 in net::SocketPosix::ReadCompleted() () at
/lib64/libQt5WebEngineCore.so.5
#15 0x00007f446c870b2d in net::SocketPosix::OnFileCanReadWithoutBlocking(int)
() at /lib64/libQt5WebEngineCore.so.5
#16 0x00007f446c24e7af in
base::MessagePumpLibevent::OnLibeventNotification(int, short, void*) () at
/lib64/libQt5WebEngineCore.so.5
#17 0x00007f445f0563f9 in event_base_loop () at /lib64/libevent-2.0.so.5
#18 0x00007f446c24e559 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#19 0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#20 0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#21 0x00007f446bb4fa78 in
content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#22 0x00007f446bb5002b in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#23 0x00007f446c27f018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#24 0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#25 0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#26 0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f440dffb700 (LWP 27306)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c273409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c273437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c24df5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f446bb4f9c8 in
content::BrowserThreadImpl::CacheThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f446bb5001b in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f446c27f018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f440e7fc700 (LWP 27305)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c273409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c273437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c24df5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f446bb4f918 in
content::BrowserThreadImpl::ProcessLauncherThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f446bb5000b in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f446c27f018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f440effd700 (LWP 27304)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c273409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c273437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c24df5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f446bb4f868 in
content::BrowserThreadImpl::FileUserBlockingThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f446bb4fffb in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f446c27f018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f440f7fe700 (LWP 27303)):
#0  0x00007f4478b6c1fd in write () at /lib64/libc.so.6
#1  0x00007f4478aea1fd in _IO_new_file_write () at /lib64/libc.so.6
#2  0x00007f4478aeab9f in __GI__IO_file_xsputn () at /lib64/libc.so.6
#3  0x00007f4478abe717 in buffered_vfprintf () at /lib64/libc.so.6
#4  0x00007f4478abb756 in vfprintf () at /lib64/libc.so.6
#5  0x00007f4478b8d2a6 in __fprintf_chk () at /lib64/libc.so.6
#6  0x00007f445f066880 in _warn_helper () at /lib64/libevent-2.0.so.5
#7  0x00007f445f066a44 in event_warn () at /lib64/libevent-2.0.so.5
#8  0x00007f445f06b1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#9  0x00007f445f055dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#10 0x00007f446c24e5ad in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#11 0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#12 0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#13 0x00007f446bb4f7b8 in
content::BrowserThreadImpl::FileThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#14 0x00007f446bb4ffeb in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#15 0x00007f446c27f018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#16 0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#17 0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#18 0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f440ffff700 (LWP 27302)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c273409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c273437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c24df5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f446bb4f708 in
content::BrowserThreadImpl::DBThreadRun(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f446bb4ffdb in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f446c27f018 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f4428a48700 (LWP 27301)):
#0  0x00007f4474ad3d1a in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c2ac172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c282229 in base::PosixDynamicThreadPool::WaitForTask() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c28278b in base::(anonymous
namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f4429249700 (LWP 27300)):
#0  0x00007f4474ad3d1a in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c2ac172 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c282229 in base::PosixDynamicThreadPool::WaitForTask() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c28278b in base::(anonymous
namespace)::WorkerThread::ThreadMain() () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f4429a4a700 (LWP 27299)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f446c273409 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f446c273437 in base::WaitableEvent::Wait() () at
/lib64/libQt5WebEngineCore.so.5
#3  0x00007f446c24df5b in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#4  0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#5  0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#6  0x00007f446c27ef66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f442a458700 (LWP 27298)):
#0  0x00007f4478b8b48c in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f4478b8d254 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f445f066880 in _warn_helper () at /lib64/libevent-2.0.so.5
#3  0x00007f445f066a44 in event_warn () at /lib64/libevent-2.0.so.5
#4  0x00007f445f06b1e0 in epoll_dispatch () at /lib64/libevent-2.0.so.5
#5  0x00007f445f055dbe in event_base_loop () at /lib64/libevent-2.0.so.5
#6  0x00007f446c24e5ad in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x00007f446c24a828 in base::MessageLoop::RunHandler() () at
/lib64/libQt5WebEngineCore.so.5
#8  0x00007f446c26726b in base::RunLoop::Run() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x00007f446c27ef66 in base::Thread::ThreadMain() () at
/lib64/libQt5WebEngineCore.so.5
#10 0x00007f446c27b06b in base::(anonymous namespace)::ThreadFunc(void*) () at
/lib64/libQt5WebEngineCore.so.5
#11 0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#12 0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f44337fe700 (LWP 27284)):
#0  0x00007f4478b70a9d in poll () at /lib64/libc.so.6
#1  0x00007f4464b12569 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f4464b1267c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f4479987e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f447993860a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f447979099a in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f4479794c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f4433fff700 (LWP 27283)):
#0  0x00007f4478b70a9d in poll () at /lib64/libc.so.6
#1  0x00007f4464b12569 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f4464b1267c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f4479987e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f447993860a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f447979099a in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f4479794c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f4438f1c700 (LWP 27282)):
#0  0x00007f4478b70a9d in poll () at /lib64/libc.so.6
#1  0x00007f4464b12569 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f4464b1267c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f4479987e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f447993860a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f447979099a in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f4479794c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f443a5c2700 (LWP 27281)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f444507f64b in util_queue_thread_func () at
/usr/lib64/dri/radeonsi_dri.so
#2  0x00007f444507f387 in impl_thrd_routine () at
/usr/lib64/dri/radeonsi_dri.so
#3  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f443adc3700 (LWP 27280)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f444507f64b in util_queue_thread_func () at
/usr/lib64/dri/radeonsi_dri.so
#2  0x00007f444507f387 in impl_thrd_routine () at
/usr/lib64/dri/radeonsi_dri.so
#3  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f443b5c4700 (LWP 27279)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f444507f64b in util_queue_thread_func () at
/usr/lib64/dri/radeonsi_dri.so
#2  0x00007f444507f387 in impl_thrd_routine () at
/usr/lib64/dri/radeonsi_dri.so
#3  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f443bdc5700 (LWP 27278)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f444507f64b in util_queue_thread_func () at
/usr/lib64/dri/radeonsi_dri.so
#2  0x00007f444507f387 in impl_thrd_routine () at
/usr/lib64/dri/radeonsi_dri.so
#3  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f443c7cb700 (LWP 27277)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f444507f64b in util_queue_thread_func () at
/usr/lib64/dri/radeonsi_dri.so
#2  0x00007f444507f387 in impl_thrd_routine () at
/usr/lib64/dri/radeonsi_dri.so
#3  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f443d10d700 (LWP 27276)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f444507f64b in util_queue_thread_func () at
/usr/lib64/dri/radeonsi_dri.so
#2  0x00007f444507f387 in impl_thrd_routine () at
/usr/lib64/dri/radeonsi_dri.so
#3  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f44474b4700 (LWP 27275)):
#0  0x00007f4478b70a9d in poll () at /lib64/libc.so.6
#1  0x00007f4464b12569 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f4464b1267c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f4479987e6b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f447993860a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f447979099a in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f447ac80a39 in QDBusConnectionManager::run() () at
/lib64/libQt5DBus.so.5
#7  0x00007f4479794c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f444cabc700 (LWP 27274)):
#0  0x00007f4478b70a9d in poll () at /lib64/libc.so.6
#1  0x00007f4464206c97 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f4464208a8a in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f444fa4aba9 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f4479794c9e in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#5  0x00007f4474acd36d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4478b7cb8f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f44566f2940 (LWP 27264)):
#0  0x00007f4474ad381b in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4464206d12 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f4464208b7a in xcb_wait_for_special_event () at /lib64/libxcb.so.1
#3  0x00007f4446a8f9a7 in dri3_find_back () at /lib64/libGLX_mesa.so.0
#4  0x00007f4446a907bc in loader_dri3_get_buffers () at /lib64/libGLX_mesa.so.0
#5  0x00007f4445115235 in dri2_allocate_textures () at
/usr/lib64/dri/radeonsi_dri.so
#6  0x00007f444511117c in dri_st_framebuffer_validate () at
/usr/lib64/dri/radeonsi_dri.so
#7  0x00007f4444f7bff0 in st_framebuffer_validate () at
/usr/lib64/dri/radeonsi_dri.so
#8  0x00007f4444f7d5cb in st_manager_validate_framebuffers () at
/usr/lib64/dri/radeonsi_dri.so
#9  0x00007f4444f3b375 in st_validate_state () at
/usr/lib64/dri/radeonsi_dri.so
#10 0x00007f4444f42ef7 in st_Clear () at /usr/lib64/dri/radeonsi_dri.so
#11 0x00007f4479eb40cb in QPlatformBackingStore::composeAndFlush(QWindow*,
QRegion const&, QPoint const&, QPlatformTextureList*, QOpenGLContext*, bool) ()
at /lib64/libQt5Gui.so.5
#12 0x00007f444fa6a3b7 in QXcbBackingStore::composeAndFlush(QWindow*, QRegion
const&, QPoint const&, QPlatformTextureList*, QOpenGLContext*, bool) () at
/lib64/libQt5XcbQpa.so.5
#13 0x00007f447a191049 in QWidgetBackingStore::qt_flush(QWidget*, QRegion
const&, QBackingStore*, QWidget*, QPoint const&, QPlatformTextureList*,
QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#14 0x00007f447a19276e in QWidgetBackingStore::flush(QWidget*) () at
/lib64/libQt5Widgets.so.5
#15 0x00007f447a193e18 in QWidgetBackingStore::doSync() () at
/lib64/libQt5Widgets.so.5
#16 0x00007f447a19402d in QWidgetBackingStore::sync() () at
/lib64/libQt5Widgets.so.5
#17 0x00007f447a1b31af in QWidgetPrivate::syncBackingStore() () at
/lib64/libQt5Widgets.so.5
#18 0x00007f447a1caef8 in QWidget::event(QEvent*) () at
/lib64/libQt5Widgets.so.5
#19 0x00007f447a2c4f2b in QMainWindow::event(QEvent*) () at
/lib64/libQt5Widgets.so.5
#20 0x00007f447cd13a57 in KMainWindow::event(QEvent*) () at
/lib64/libKF5XmlGui.so.5
#21 0x00007f447cd58a65 in KXmlGuiWindow::event(QEvent*) () at
/lib64/libKF5XmlGui.so.5
#22 0x00007f447a1845dc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib64/libQt5Widgets.so.5
#23 0x00007f447a18bc74 in QApplication::notify(QObject*, QEvent*) () at
/lib64/libQt5Widgets.so.5
#24 0x00007f4479939627 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib64/libQt5Core.so.5
#25 0x00007f447993b85b in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /lib64/libQt5Core.so.5
#26 0x00007f4479987dd3 in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () at /lib64/libQt5Core.so.5
#27 0x00007f4464b12247 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#28 0x00007f4464b125e8 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#29 0x00007f4464b1267c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#30 0x00007f4479987e4f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#31 0x00007f447993860a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#32 0x00007f447994027c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#33 0x0000561a38a857dd in main ()

Reported using DrKonqi

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