[akregator] [Bug 397866] akregator crashes when closing the rightmost tab

[tomas nackaerts]

https://bugs.kde.org/show_bug.cgi?id=397866

--- Comment #6 from tomas nackaerts <tomas.nackaerts at gmail.com> ---
After installing latest packages from kde-neon today i see the same bug.
however now there is a hopefully better backtrace:

Application: Akregator (akregator), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4c9e9e1880 (LWP 18408))]

Thread 27 (Thread 0x7f4bd376f700 (LWP 18634)):
#0  0x00007f4c94d10ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7f4bd376ea80, expected=0, futex_word=0x7f4bd376ec68) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f4bd376eb20, mutex=0x7f4bd376ec18,
cond=0x7f4bd376ec40) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f4bd376ec40, mutex=0x7f4bd376ec18,
abstime=0x7f4bd376eb20) at pthread_cond_wait.c:667
#3  0x00007f4c8b1b8837 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab17 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1bac02 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc81 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c101f in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4bd376f700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f4bd239a700 (LWP 18450)):
#0  __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f4c9a82c474 in ___fprintf_chk (fp=0x7f4c9aae78b0
<_IO_stdfile_2_lock>, flag=1, format=0x7f4c7f82f6a8 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007f4c7f8179ad in event_logv_ () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f4c7f817b44 in event_warn () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f4c7f81946c in ?? () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f4c7f80f114 in event_base_loop () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f4c8b18bc71 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1ac12b in base::RunLoop::Run() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1ce52f in base::Thread::ThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4c94d0a6db in start_thread (arg=0x7f4bd239a700) at
pthread_create.c:463
#11 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f4bdbfff700 (LWP 18440)):
#0  0x00007f4c92a2ed79 in g_mutex_lock () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4c929e8c8f in g_main_context_check () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4c929e93e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4c929e954c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4c9b149a9b in QEventDispatcherGlib::processEvents
(this=0x7f4bd4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f4c9b0eddea in QEventLoop::exec (this=this at entry=0x7f4bdbffed20,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f4c9af18b8a in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:525
#7  0x00007f4c9af23aab in QThreadPrivate::start (arg=0x55561e3f5310) at
thread/qthread_unix.cpp:367
#8  0x00007f4c94d0a6db in start_thread (arg=0x7f4bdbfff700) at
pthread_create.c:463
#9  0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f4c04ff9700 (LWP 18439)):
#0  0x00007f4c574db2b4 in ?? () from
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#1  0x00007f4c579400d8 in pa_mainloop_dispatch () from
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f4c579404ae in pa_mainloop_iterate () from
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f4c57940530 in pa_mainloop_run () from
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f4c5794e399 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f4c574eb2a8 in ?? () from
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#6  0x00007f4c94d0a6db in start_thread (arg=0x7f4c04ff9700) at
pthread_create.c:463
#7  0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f4c057fa700 (LWP 18438)):
#0  0x00007f4c9a80a187 in __GI___libc_write (fd=2, buf=0x7f4c057f6f90,
nbytes=48) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007f4c9a7851bd in _IO_new_file_write (f=0x7f4c9aae6680
<_IO_2_1_stderr_>, data=0x7f4c057f6f90, n=48) at fileops.c:1203
#2  0x00007f4c9a785b2f in new_do_write (to_do=<optimized out>,
data=0x7f4c057f6f90 "[warn] epoll_wait: Ongeldige bestandsdescriptor\n",
fp=0x7f4c9aae6680 <_IO_2_1_stderr_>) at fileops.c:457
#3  _IO_new_file_xsputn (f=0x7f4c9aae6680 <_IO_2_1_stderr_>, data=<optimized
out>, n=48) at fileops.c:1277
#4  0x00007f4c9a758707 in buffered_vfprintf (s=s at entry=0x7f4c9aae6680
<_IO_2_1_stderr_>, format=format at entry=0x7f4c7f82f6a8 "[%s] %s\n",
args=args at entry=0x7f4c057f9550) at vfprintf.c:2350
#5  0x00007f4c9a755726 in _IO_vfprintf_internal (s=s at entry=0x7f4c9aae6680
<_IO_2_1_stderr_>, format=0x7f4c7f82f6a8 "[%s] %s\n",
ap=ap at entry=0x7f4c057f9550) at vfprintf.c:1301
#6  0x00007f4c9a82c4c6 in ___fprintf_chk (fp=0x7f4c9aae6680 <_IO_2_1_stderr_>,
flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007f4c7f8179ad in event_logv_ () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007f4c7f817b44 in event_warn () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007f4c7f81946c in ?? () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007f4c7f80f114 in event_base_loop () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007f4c8b18bcc5 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f4c8b1ac12b in base::RunLoop::Run() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f4c8b1ce52f in base::Thread::ThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f4c94d0a6db in start_thread (arg=0x7f4c057fa700) at
pthread_create.c:463
#16 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f4c05ffb700 (LWP 18437)):
#0  0x00007f4c94d10ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7f4c05ffaa50, expected=0, futex_word=0x7f4c05ffac38) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f4c05ffaaf0, mutex=0x7f4c05ffabe8,
cond=0x7f4c05ffac10) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f4c05ffac10, mutex=0x7f4c05ffabe8,
abstime=0x7f4c05ffaaf0) at pthread_cond_wait.c:667
#3  0x00007f4c8b1b8837 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab17 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b184ee8 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1ac12b in base::RunLoop::Run() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1ce52f in base::Thread::ThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c05ffb700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f4c067fc700 (LWP 18436)):
#0  0x00007f4c94d10ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7f4c067fba50, expected=0, futex_word=0x7f4c067fbc38) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f4c067fbaf0, mutex=0x7f4c067fbbe8,
cond=0x7f4c067fbc10) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f4c067fbc10, mutex=0x7f4c067fbbe8,
abstime=0x7f4c067fbaf0) at pthread_cond_wait.c:667
#3  0x00007f4c8b1b8837 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab17 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b184ee8 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1ac12b in base::RunLoop::Run() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1ce52f in base::Thread::ThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c067fc700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f4c06ffd700 (LWP 18435)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55561e499df8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55561e499d38,
cond=0x55561e499dd0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55561e499dd0, mutex=0x55561e499d38) at
pthread_cond_wait.c:655
#3  0x00007f4c8b1b8769 in base::ConditionVariable::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8bec8c28 in cc::SingleThreadTaskGraphRunner::Run() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1ce36c in base::SimpleThread::ThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c94d0a6db in start_thread (arg=0x7f4c06ffd700) at
pthread_create.c:463
#8  0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f4c077fe700 (LWP 18434)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f4c077fdc78) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4c077fdc28,
cond=0x7f4c077fdc50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f4c077fdc50, mutex=0x7f4c077fdc28) at
pthread_cond_wait.c:655
#3  0x00007f4c8b1b8769 in base::ConditionVariable::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab2c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1babbf in base::WaitableEvent::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc98 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c1209 in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c077fe700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f4c07fff700 (LWP 18433)):
[KCrash Handler]
#6  0x00007f4c89b4786c in
QtWebEngineCore::NetworkDelegateQt::OnBeforeURLRequest(net::URLRequest*,
base::RepeatingCallback<void (int)> const&, GURL*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b79dd7c in
net::NetworkDelegate::NotifyBeforeURLRequest(net::URLRequest*,
base::RepeatingCallback<void (int)> const&, GURL*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b8f834b in net::URLRequest::Start() [clone .part.97] () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c8a4ab929 in content::ResourceLoader::StartRequestInternal() ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4c8a4ac5ed in content::ResourceLoader::Resume(bool) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f4c8a4ac7d2 in content::ResourceLoader::StartRequest() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f4c8a4a5e9e in
content::ResourceDispatcherHostImpl::BeginRequestInternal(std::unique_ptr<net::URLRequest,
std::default_delete<net::URLRequest> >,
std::unique_ptr<content::ResourceHandler,
std::default_delete<content::ResourceHandler> >) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f4c8a4a78df in
content::ResourceDispatcherHostImpl::BeginNavigationRequest(content::ResourceContext*,
net::URLRequestContext*, storage::FileSystemContext*,
content::NavigationRequestInfo const&,
std::unique_ptr<content::NavigationUIData,
std::default_delete<content::NavigationUIData> >,
content::NavigationURLLoaderImplCore*,
mojo::InterfacePtr<network::mojom::URLLoaderClient>,
mojo::InterfaceRequest<network::mojom::URLLoader>,
content::ServiceWorkerNavigationHandleCore*,
content::AppCacheNavigationHandleCore*, unsigned int,
content::GlobalRequestID*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f4c8a494fc5 in
content::NavigationURLLoaderImplCore::Start(content::ResourceContext*,
net::URLRequestContextGetter*, storage::FileSystemContext*,
content::ServiceWorkerNavigationHandleCore*,
content::AppCacheNavigationHandleCore*,
std::unique_ptr<content::NavigationRequestInfo,
std::default_delete<content::NavigationRequestInfo> >,
std::unique_ptr<content::NavigationUIData,
std::default_delete<content::NavigationUIData> >) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f4c8a4948c0 in
base::internal::Invoker<base::internal::BindState<void
(content::NavigationURLLoaderImplCore::*)(content::ResourceContext*,
net::URLRequestContextGetter*, storage::FileSystemContext*,
content::ServiceWorkerNavigationHandleCore*,
content::AppCacheNavigationHandleCore*,
std::unique_ptr<content::NavigationRequestInfo,
std::default_delete<content::NavigationRequestInfo> >,
std::unique_ptr<content::NavigationUIData,
std::default_delete<content::NavigationUIData> >),
scoped_refptr<content::NavigationURLLoaderImplCore>, content::ResourceContext*,
base::internal::UnretainedWrapper<net::URLRequestContextGetter>,
base::internal::UnretainedWrapper<storage::FileSystemContext>,
content::ServiceWorkerNavigationHandleCore*,
content::AppCacheNavigationHandleCore*,
base::internal::PassedWrapper<std::unique_ptr<content::NavigationRequestInfo,
std::default_delete<content::NavigationRequestInfo> > >,
base::internal::PassedWrapper<std::unique_ptr<content::NavigationUIData,
std::default_delete<content::NavigationUIData> > > >, void
()>::RunOnce(base::internal::BindStateBase*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007f4c8b1664ef in base::debug::TaskAnnotator::RunTask(char const*,
base::PendingTask*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#17 0x00007f4c8b188d42 in base::MessageLoop::RunTask(base::PendingTask*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#18 0x00007f4c8b189685 in
base::MessageLoop::DeferOrRunPendingTask(base::PendingTask) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#19 0x00007f4c8b1897f7 in base::MessageLoop::DoWork() [clone .part.168] () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#20 0x00007f4c8b18bc5a in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#21 0x00007f4c8b1ac12b in base::RunLoop::Run() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#22 0x00007f4c8a28686a in
content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#23 0x00007f4c8a286e8f in content::BrowserThreadImpl::Run(base::RunLoop*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#24 0x00007f4c8b1ce5e8 in base::Thread::ThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#25 0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#26 0x00007f4c94d0a6db in start_thread (arg=0x7f4c07fff700) at
pthread_create.c:463
#27 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f4c28ff9700 (LWP 18432)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f4c28ff8c78) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4c28ff8c28,
cond=0x7f4c28ff8c50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f4c28ff8c50, mutex=0x7f4c28ff8c28) at
pthread_cond_wait.c:655
#3  0x00007f4c8b1b8769 in base::ConditionVariable::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab2c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1babbf in base::WaitableEvent::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc98 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c101f in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c28ff9700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f4c297fa700 (LWP 18431)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f4c297f9c78) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4c297f9c28,
cond=0x7f4c297f9c50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f4c297f9c50, mutex=0x7f4c297f9c28) at
pthread_cond_wait.c:655
#3  0x00007f4c8b1b8769 in base::ConditionVariable::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab2c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1babbf in base::WaitableEvent::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc98 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c1209 in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c297fa700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f4c29ffb700 (LWP 18430)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f4c29ffac78) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4c29ffac28,
cond=0x7f4c29ffac50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f4c29ffac50, mutex=0x7f4c29ffac28) at
pthread_cond_wait.c:655
#3  0x00007f4c8b1b8769 in base::ConditionVariable::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab2c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1babbf in base::WaitableEvent::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc98 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c101f in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c29ffb700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f4c2a7fc700 (LWP 18429)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f4c2a7fbc78) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4c2a7fbc28,
cond=0x7f4c2a7fbc50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f4c2a7fbc50, mutex=0x7f4c2a7fbc28) at
pthread_cond_wait.c:655
#3  0x00007f4c8b1b8769 in base::ConditionVariable::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab2c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1babbf in base::WaitableEvent::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc98 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c101f in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c2a7fc700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f4c2affd700 (LWP 18428)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f4c2affcc78) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4c2affcc28,
cond=0x7f4c2affcc50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f4c2affcc50, mutex=0x7f4c2affcc28) at
pthread_cond_wait.c:655
#3  0x00007f4c8b1b8769 in base::ConditionVariable::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab2c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1babbf in base::WaitableEvent::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc98 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c101f in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c2affd700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f4c2bfff700 (LWP 18426)):
#0  0x00007f4c94d10ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7f4c2bffea80, expected=0, futex_word=0x7f4c2bffec68) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f4c2bffeb20, mutex=0x7f4c2bffec18,
cond=0x7f4c2bffec40) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f4c2bffec40, mutex=0x7f4c2bffec18,
abstime=0x7f4c2bffeb20) at pthread_cond_wait.c:667
#3  0x00007f4c8b1b8837 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab17 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1bac02 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc81 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c1209 in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c2bfff700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f4c4d7fa700 (LWP 18424)):
#0  0x00007f4c94d10ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7f4c4d7f9a80, expected=0, futex_word=0x7f4c4d7f9c68) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f4c4d7f9b20, mutex=0x7f4c4d7f9c18,
cond=0x7f4c4d7f9c40) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f4c4d7f9c40, mutex=0x7f4c4d7f9c18,
abstime=0x7f4c4d7f9b20) at pthread_cond_wait.c:667
#3  0x00007f4c8b1b8837 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab17 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1bac02 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc81 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c1209 in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c4d7fa700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f4c4dffb700 (LWP 18423)):
#0  0x00007f4c94d10ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7f4c4dffaa80, expected=0, futex_word=0x7f4c4dffac68) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f4c4dffab20, mutex=0x7f4c4dffac18,
cond=0x7f4c4dffac40) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f4c4dffac40, mutex=0x7f4c4dffac18,
abstime=0x7f4c4dffab20) at pthread_cond_wait.c:667
#3  0x00007f4c8b1b8837 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab17 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1bac02 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc81 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c1209 in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c4dffb700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f4c4e7fc700 (LWP 18422)):
#0  0x00007f4c94d10ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7f4c4e7fba80, expected=0, futex_word=0x7f4c4e7fbc68) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f4c4e7fbb20, mutex=0x7f4c4e7fbc18,
cond=0x7f4c4e7fbc40) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f4c4e7fbc40, mutex=0x7f4c4e7fbc18,
abstime=0x7f4c4e7fbb20) at pthread_cond_wait.c:667
#3  0x00007f4c8b1b8837 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab17 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1bac02 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1bfc81 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c1209 in base::internal::SchedulerWorker::Thread::ThreadMain()
() from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c94d0a6db in start_thread (arg=0x7f4c4e7fc700) at
pthread_create.c:463
#10 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f4c4effd700 (LWP 18421)):
#0  __GI___pthread_getspecific (key=<optimized out>) at
pthread_getspecific.c:65
#1  0x00007f4c8b1d29d7 in base::ThreadLocalStorage::StaticSlot::Get() const ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f4c8b1ab079 in base::RunLoop::IsNestedOnCurrentThread() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f4c8b1895f1 in base::MessageLoop::DoIdleWork() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b18bca5 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1ac12b in base::RunLoop::Run() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b1ce52f in base::Thread::ThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c94d0a6db in start_thread (arg=0x7f4c4effd700) at
pthread_create.c:463
#9  0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f4c4f7fe700 (LWP 18420)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f4c4f7fdc18) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4c4f7fdbc8,
cond=0x7f4c4f7fdbf0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f4c4f7fdbf0, mutex=0x7f4c4f7fdbc8) at
pthread_cond_wait.c:655
#3  0x00007f4c8b1b8769 in base::ConditionVariable::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4c8b1bab2c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4c8b1babbf in base::WaitableEvent::Wait() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c8b184eda in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c8b1ac12b in base::RunLoop::Run() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1ce52f in base::Thread::ThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4c94d0a6db in start_thread (arg=0x7f4c4f7fe700) at
pthread_create.c:463
#11 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f4c4ffff700 (LWP 18419)):
#0  0x00007f4c9a82c0c6 in ___vsnprintf_chk (s=0x7f4c4fffe64a "", maxlen=1014,
flags=1, slen=18446744073709551615, format=0x7f4c7f832aed ": %s",
args=0x7f4c4fffe560) at vsnprintf_chk.c:31
#1  0x00007f4c7f8143b3 in evutil_vsnprintf () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#2  0x00007f4c7f81444f in evutil_snprintf () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f4c7f81795c in event_logv_ () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f4c7f817b44 in event_warn () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f4c7f81946c in ?? () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f4c7f80f114 in event_base_loop () from
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#7  0x00007f4c8b18bcc5 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4c8b1ac12b in base::RunLoop::Run() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4c8b1ce52f in base::Thread::ThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4c8b1c9f11 in base::(anonymous namespace)::ThreadFunc(void*) ()
from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f4c94d0a6db in start_thread (arg=0x7f4c4ffff700) at
pthread_create.c:463
#12 0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f4c655e8700 (LWP 18412)):
#0  0x00007f4c929e897c in g_main_context_prepare () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4c929e936b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4c929e954c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4c9b149a9b in QEventDispatcherGlib::processEvents
(this=0x7f4c5c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f4c9b0eddea in QEventLoop::exec (this=this at entry=0x7f4c655e7cf0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f4c9af18b8a in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:525
#6  0x00007f4c9cdbae45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f4c9af23aab in QThreadPrivate::start (arg=0x7f4c9d032d60) at
thread/qthread_unix.cpp:367
#8  0x00007f4c94d0a6db in start_thread (arg=0x7f4c655e8700) at
pthread_create.c:463
#9  0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f4c66887700 (LWP 18411)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55561e05edc8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55561e05ed78,
cond=0x55561e05eda0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55561e05eda0, mutex=0x55561e05ed78) at
pthread_cond_wait.c:655
#3  0x00007f4c7075346b in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#4  0x00007f4c70753197 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#5  0x00007f4c94d0a6db in start_thread (arg=0x7f4c66887700) at
pthread_create.c:463
#6  0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f4c678ca700 (LWP 18410)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55561e13a900) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55561e13a8b0,
cond=0x55561e13a8d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55561e13a8d8, mutex=0x55561e13a8b0) at
pthread_cond_wait.c:655
#3  0x00007f4c7075346b in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#4  0x00007f4c70753197 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#5  0x00007f4c94d0a6db in start_thread (arg=0x7f4c678ca700) at
pthread_create.c:463
#6  0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f4c73e89700 (LWP 18409)):
#0  0x00007f4c9a80ebf9 in __GI___poll (fds=0x7f4c73e88c28, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4c92780747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4c9278236a in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f4c75f9e129 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f4c9af23aab in QThreadPrivate::start (arg=0x55561e076890) at
thread/qthread_unix.cpp:367
#5  0x00007f4c94d0a6db in start_thread (arg=0x7f4c73e89700) at
pthread_create.c:463
#6  0x00007f4c9a81b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f4c9e9e1880 (LWP 18408)):
#0  0x00007f4c94d109f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7ffe20f31f98) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55561e0631e8,
cond=0x7ffe20f31f70) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ffe20f31f70, mutex=0x55561e0631e8) at
pthread_cond_wait.c:655
#3  0x00007f4c92780952 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007f4c9278206f in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#5  0x00007f4c92782180 in xcb_wait_for_reply () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#6  0x00007f4c75fc221d in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#7  0x00007f4c75fc234c in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#8  0x00007f4c9b68f4f8 in QCursor::pos(QScreen const*) () from
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#9  0x00007f4c9c1382b9 in QTreeView::drawTree(QPainter*, QRegion const&) const
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f4c9c13cfb5 in QTreeView::paintEvent(QPaintEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f4c9bebbb08 in QWidget::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f4c9bf5d71e in QFrame::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f4c9c0d48eb in QAbstractItemView::viewportEvent(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f4c9c13decc in QTreeView::viewportEvent(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f4c9b0ef83d in
QCoreApplicationPrivate::sendThroughObjectEventFilters
(receiver=0x55561e41c1d0, event=0x7ffe20f32820) at
kernel/qcoreapplication.cpp:1174
#16 0x00007f4c9be7ce65 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f4c9be8445f in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f4c9b0efab8 in QCoreApplication::notifyInternal2
(receiver=0x55561e41c1d0, event=0x7ffe20f32820) at
kernel/qcoreapplication.cpp:1048
#19 0x00007f4c9beb464a in QWidgetPrivate::sendPaintEvent(QRegion const&) ()
from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f4c9beb4e2d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f4c9beb5c19 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f4c9beb5c19 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f4c9beb5c19 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#43 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#44 0x00007f4c9beb5a90 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007f4c9beb481e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#46 0x00007f4c9be8c1e6 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#47 0x00007f4c9be8c425 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#48 0x00007f4c9bea3b6f in QWidgetPrivate::syncBackingStore() () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#49 0x00007f4c9bebbc78 in QWidget::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007f4c9bfc38d0 in QMainWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007f4c9d568c77 in KMainWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#52 0x00007f4c9d5adbb5 in KXmlGuiWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#53 0x00007f4c9be7ce8c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#54 0x00007f4c9be8445f in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#55 0x00007f4c9b0efab8 in QCoreApplication::notifyInternal2
(receiver=0x55561e0a84b0, event=event at entry=0x55561f720860) at
kernel/qcoreapplication.cpp:1048
#56 0x00007f4c9b0f25fd in QCoreApplication::sendEvent (event=0x55561f720860,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#57 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver at entry=0x0,
event_type=event_type at entry=0, data=0x55561e030990) at
kernel/qcoreapplication.cpp:1745
#58 0x00007f4c9b0f2bb8 in QCoreApplication::sendPostedEvents
(receiver=receiver at entry=0x0, event_type=event_type at entry=0) at
kernel/qcoreapplication.cpp:1599
#59 0x00007f4c9b14a453 in postEventSourceDispatch (s=0x55561e0aab30) at
kernel/qeventdispatcher_glib.cpp:276
#60 0x00007f4c929e9287 in g_main_context_dispatch () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#61 0x00007f4c929e94c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007f4c929e954c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007f4c9b149a7f in QEventDispatcherGlib::processEvents
(this=0x55561e0ba7e0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#64 0x00007f4c76028ed1 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#65 0x00007f4c9b0eddea in QEventLoop::exec (this=this at entry=0x7ffe20f35390,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:214
#66 0x00007f4c9b0f6fa0 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1336
#67 0x000055561d77ea80 in main (argc=<optimized out>, argv=<optimized out>) at
./src/main.cpp:122

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