Bug 401905

Summary: Akregator crashes when HTTP request times out
Product: [Applications] akregator Reporter: Juhani Simola <ojs>
Component: generalAssignee: kdepim bugs <pim-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: amantia
Priority: NOR Keywords: drkonqi
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Juhani Simola 2018-12-08 23:28:28 UTC 
Application: akregator (5.9.3)

Qt Version: 5.11.2
Frameworks Version: 5.52.0
Operating System: Linux 4.15.0-42-generic x86_64
Distribution: KDE neon User Edition 5.14

-- Information about the crash:
- What I was doing when the application crashed: just reading feeds, while one feed is from a server where requests time out every now and then. 

It seems that crashes are reduced when I'm not touching the feed from the faulty server for some time. There is no clear way to reproduce the crash, possibly because the crashes are related to feed updates happening in the background.

The crash can be reproduced sometimes.

-- 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 0x7fc5f73ccbc0 (LWP 6451))]

Thread 29 (Thread 0x7fc497d7a700 (LWP 6488)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc5f3204474 in ___fprintf_chk (fp=0x7fc5f34bf8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fc5d857f6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fc5d85679ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc5d8567b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc5d856946c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc5d855f114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc5e404bfc4 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e406c20b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e408e60f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc5ed6de6db in start_thread (arg=0x7fc497d7a700) at pthread_create.c:463
#11 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fc554d6c700 (LWP 6487)):
#0  0x00007fc5ed6e4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fc554d6b740, expected=0, futex_word=0x7fc554d6b928) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fc554d6b7e0, mutex=0x7fc554d6b8d8, cond=0x7fc554d6b900) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fc554d6b900, mutex=0x7fc554d6b8d8, abstime=0x7fc554d6b7e0) at pthread_cond_wait.c:667
#3  0x00007fc5e4078917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407abf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ace2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd61 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40812e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc554d6c700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fc555ffb700 (LWP 6486)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc5df93dfb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc5df93df68, cond=0x7fc5df93df90) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fc5df93df90, mutex=0x7fc5df93df68) at pthread_cond_wait.c:655
#3  0x00007fc5df648954 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007fc5df648999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007fc5ed6de6db in start_thread (arg=0x7fc555ffb700) at pthread_create.c:463
#6  0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fc5567fc700 (LWP 6485)):
#0  0x00007fc5f31e6bf9 in __GI___poll (fds=0x7fc518004a10, nfds=1, timeout=9578) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc5eb3bc539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc5eb3bc64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc5f3b2104b in QEventDispatcherGlib::processEvents (this=0x7fc518000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc5f3ac530a in QEventLoop::exec (this=this@entry=0x7fc5567fb9e0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fc5f38f0bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fc5f38fbadb in QThreadPrivate::start (arg=0x5643e9787620) at thread/qthread_unix.cpp:367
#7  0x00007fc5ed6de6db in start_thread (arg=0x7fc5567fc700) at pthread_create.c:463
#8  0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fc556ffd700 (LWP 6484)):
#0  0x00007fc5f31e6bf9 in __GI___poll (fds=0x7fc52c007030, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc5b198d451 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fc5b197ee10 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fc5b197f4a0 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fc5b197f530 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fc5b198d399 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fc5b152a2a8 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007fc5ed6de6db in start_thread (arg=0x7fc556ffd700) at pthread_create.c:463
#8  0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fc5577fe700 (LWP 6483)):
#0  0x00007fc5f31e2187 in __GI___libc_write (fd=2, buf=0x7fc5577fac50, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007fc5f315d1bd in _IO_new_file_write (f=0x7fc5f34be680 <_IO_2_1_stderr_>, data=0x7fc5577fac50, n=39) at fileops.c:1203
#2  0x00007fc5f315db2f in new_do_write (to_do=<optimized out>, data=0x7fc5577fac50 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7fc5f34be680 <_IO_2_1_stderr_>) at fileops.c:457
#3  _IO_new_file_xsputn (f=0x7fc5f34be680 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1277
#4  0x00007fc5f3130707 in buffered_vfprintf (s=s@entry=0x7fc5f34be680 <_IO_2_1_stderr_>, format=format@entry=0x7fc5d857f6a8 "[%s] %s\n", args=args@entry=0x7fc5577fd210) at vfprintf.c:2350
#5  0x00007fc5f312d726 in _IO_vfprintf_internal (s=s@entry=0x7fc5f34be680 <_IO_2_1_stderr_>, format=0x7fc5d857f6a8 "[%s] %s\n", ap=ap@entry=0x7fc5577fd210) at vfprintf.c:1301
#6  0x00007fc5f32044c6 in ___fprintf_chk (fp=0x7fc5f34be680 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007fc5d85679ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007fc5d8567b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007fc5d856946c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007fc5d855f114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007fc5e404be81 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc5e406c20b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fc5e408e60f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007fc5ed6de6db in start_thread (arg=0x7fc5577fe700) at pthread_create.c:463
#16 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fc557fff700 (LWP 6482)):
#0  0x00007fc5ed6e4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fc557ffe710, expected=0, futex_word=0x7fc557ffe8f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fc557ffe7b0, mutex=0x7fc557ffe8a8, cond=0x7fc557ffe8d0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fc557ffe8d0, mutex=0x7fc557ffe8a8, abstime=0x7fc557ffe7b0) at pthread_cond_wait.c:667
#3  0x00007fc5e4078917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407abf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e40450f8 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e406c20b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e408e60f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc557fff700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fc574ff9700 (LWP 6481)):
#0  0x00007fc5ed6e4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fc574ff8710, expected=0, futex_word=0x7fc574ff88f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fc574ff87b0, mutex=0x7fc574ff88a8, cond=0x7fc574ff88d0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fc574ff88d0, mutex=0x7fc574ff88a8, abstime=0x7fc574ff87b0) at pthread_cond_wait.c:667
#3  0x00007fc5e4078917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407abf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e40450f8 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e406c20b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e408e60f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc574ff9700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fc5757fa700 (LWP 6480)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5643e967be98) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5643e967bdd8, cond=0x5643e967be70) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5643e967be70, mutex=0x5643e967bdd8) at pthread_cond_wait.c:655
#3  0x00007fc5e4078849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e4b30078 in cc::SingleThreadTaskGraphRunner::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e408e44c in base::SimpleThread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5ed6de6db in start_thread (arg=0x7fc5757fa700) at pthread_create.c:463
#8  0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fc575ffb700 (LWP 6479)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc575ffa938) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc575ffa8e8, cond=0x7fc575ffa910) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fc575ffa910, mutex=0x7fc575ffa8e8) at pthread_cond_wait.c:655
#3  0x00007fc5e4078849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407ac0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ac9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40812e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc575ffb700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fc5767fc700 (LWP 6478)):
[KCrash Handler]
#6  0x00005643e9db40c0 in ?? ()
#7  0x00007fc5e2a8474f in QtWebEngineCore::NetworkDelegateQt::OnBeforeURLRequest(net::URLRequest*, base::RepeatingCallback<void (int)> const&, GURL*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e465df6c in net::NetworkDelegate::NotifyBeforeURLRequest(net::URLRequest*, base::RepeatingCallback<void (int)> const&, GURL*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5e47ba21b in net::URLRequest::Start() [clone .part.97] () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc5e336a4e9 in content::ResourceLoader::StartRequestInternal() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fc5e336b1ad in content::ResourceLoader::Resume(bool) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc5e336b392 in content::ResourceLoader::StartRequest() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fc5e3364a5e 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
#14 0x00007fc5e336649f 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
#15 0x00007fc5e3353b85 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
#16 0x00007fc5e3353480 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
#17 0x00007fc5e40266ff in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#18 0x00007fc5e4048f52 in base::MessageLoop::RunTask(base::PendingTask*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#19 0x00007fc5e4049895 in base::MessageLoop::DeferOrRunPendingTask(base::PendingTask) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#20 0x00007fc5e4049a07 in base::MessageLoop::DoWork() [clone .part.168] () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#21 0x00007fc5e404be6a in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#22 0x00007fc5e406c20b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#23 0x00007fc5e314523a in content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#24 0x00007fc5e314585f in content::BrowserThreadImpl::Run(base::RunLoop*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#25 0x00007fc5e408e6c8 in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#26 0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x00007fc5ed6de6db in start_thread (arg=0x7fc5767fc700) at pthread_create.c:463
#28 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fc576ffd700 (LWP 6477)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc576ffc938) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc576ffc8e8, cond=0x7fc576ffc910) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fc576ffc910, mutex=0x7fc576ffc8e8) at pthread_cond_wait.c:655
#3  0x00007fc5e4078849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407ac0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ac9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40810ff in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc576ffd700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fc5777fe700 (LWP 6476)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc5777fd938) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc5777fd8e8, cond=0x7fc5777fd910) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fc5777fd910, mutex=0x7fc5777fd8e8) at pthread_cond_wait.c:655
#3  0x00007fc5e4078849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407ac0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ac9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40812e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc5777fe700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fc577fff700 (LWP 6475)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc577ffe938) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc577ffe8e8, cond=0x7fc577ffe910) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fc577ffe910, mutex=0x7fc577ffe8e8) at pthread_cond_wait.c:655
#3  0x00007fc5e4078849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407ac0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ac9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40810ff in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc577fff700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fc5a0ff9700 (LWP 6474)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc5a0ff8938) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc5a0ff88e8, cond=0x7fc5a0ff8910) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fc5a0ff8910, mutex=0x7fc5a0ff88e8) at pthread_cond_wait.c:655
#3  0x00007fc5e4078849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407ac0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ac9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40810ff in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc5a0ff9700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fc5a17fa700 (LWP 6473)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc5a17f9938) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc5a17f98e8, cond=0x7fc5a17f9910) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fc5a17f9910, mutex=0x7fc5a17f98e8) at pthread_cond_wait.c:655
#3  0x00007fc5e4078849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407ac0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ac9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40810ff in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc5a17fa700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fc5a27fc700 (LWP 6471)):
#0  0x00007fc5ed6e4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fc5a27fb740, expected=0, futex_word=0x7fc5a27fb928) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fc5a27fb7e0, mutex=0x7fc5a27fb8d8, cond=0x7fc5a27fb900) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fc5a27fb900, mutex=0x7fc5a27fb8d8, abstime=0x7fc5a27fb7e0) at pthread_cond_wait.c:667
#3  0x00007fc5e4078917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407abf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ace2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd61 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40812e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc5a27fc700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fc5a37fe700 (LWP 6469)):
#0  0x00007fc5ed6e4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fc5a37fd740, expected=0, futex_word=0x7fc5a37fd928) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fc5a37fd7e0, mutex=0x7fc5a37fd8d8, cond=0x7fc5a37fd900) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fc5a37fd900, mutex=0x7fc5a37fd8d8, abstime=0x7fc5a37fd7e0) at pthread_cond_wait.c:667
#3  0x00007fc5e4078917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407abf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ace2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd61 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40812e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc5a37fe700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fc5a8f06700 (LWP 6467)):
#0  0x00007fc5ed6e4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fc5a8f05740, expected=0, futex_word=0x7fc5a8f05928) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fc5a8f057e0, mutex=0x7fc5a8f058d8, cond=0x7fc5a8f05900) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fc5a8f05900, mutex=0x7fc5a8f058d8, abstime=0x7fc5a8f057e0) at pthread_cond_wait.c:667
#3  0x00007fc5e4078917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407abf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ace2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e407fd61 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e40812e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc5a8f06700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fc5a9707700 (LWP 6466)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc5f3204474 in ___fprintf_chk (fp=0x7fc5f34bf8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fc5d857f6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fc5d85679ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc5d8567b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc5d856946c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc5d855f114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc5e404be81 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e406c20b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e408e60f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc5ed6de6db in start_thread (arg=0x7fc5a9707700) at pthread_create.c:463
#11 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fc5a9f08700 (LWP 6465)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc5a9f078d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc5a9f07888, cond=0x7fc5a9f078b0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fc5a9f078b0, mutex=0x7fc5a9f07888) at pthread_cond_wait.c:655
#3  0x00007fc5e4078849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc5e407ac0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc5e407ac9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc5e40450ea in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e406c20b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e408e60f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc5ed6de6db in start_thread (arg=0x7fc5a9f08700) at pthread_create.c:463
#11 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fc5aa917700 (LWP 6464)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc5f3204474 in ___fprintf_chk (fp=0x7fc5f34bf8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fc5d857f6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fc5d85679ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc5d8567b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc5d856946c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc5d855f114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc5e404be81 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc5e406c20b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc5e408e60f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc5e4089ff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc5ed6de6db in start_thread (arg=0x7fc5aa917700) at pthread_create.c:463
#11 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fc5b3508700 (LWP 6457)):
#0  0x00007fc5eb402049 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc5eb3bbaa3 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc5eb3bc46b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc5eb3bc64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc5f3b2104b in QEventDispatcherGlib::processEvents (this=0x7fc598000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fc5f3ac530a in QEventLoop::exec (this=this@entry=0x7fc5b35079b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fc5f38f0bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fc5f5792e45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fc5f38fbadb in QThreadPrivate::start (arg=0x7fc5f5a0ad60) at thread/qthread_unix.cpp:367
#9  0x00007fc5ed6de6db in start_thread (arg=0x7fc5b3508700) at pthread_create.c:463
#10 0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fc5b47a7700 (LWP 6456)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5643e9314d38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5643e9314ce8, cond=0x5643e9314d10) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5643e9314d10, mutex=0x5643e9314ce8) at pthread_cond_wait.c:655
#3  0x00007fc5bb08ed5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fc5bb08ebd7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fc5ed6de6db in start_thread (arg=0x7fc5b47a7700) at pthread_create.c:463
#6  0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fc5b4fa8700 (LWP 6455)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5643e9314bd0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5643e9314b80, cond=0x5643e9314ba8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5643e9314ba8, mutex=0x5643e9314b80) at pthread_cond_wait.c:655
#3  0x00007fc5bb08ed5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fc5bb08ebd7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fc5ed6de6db in start_thread (arg=0x7fc5b4fa8700) at pthread_create.c:463
#6  0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fc5b57a9700 (LWP 6454)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5643e9314a68) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5643e9314a18, cond=0x5643e9314a40) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5643e9314a40, mutex=0x5643e9314a18) at pthread_cond_wait.c:655
#3  0x00007fc5bb08ed5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fc5bb08ebd7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fc5ed6de6db in start_thread (arg=0x7fc5b57a9700) at pthread_create.c:463
#6  0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fc5b5faa700 (LWP 6453)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5643e9314900) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5643e93148b0, cond=0x5643e93148d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5643e93148d8, mutex=0x5643e93148b0) at pthread_cond_wait.c:655
#3  0x00007fc5bb08ed5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fc5bb08ebd7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fc5ed6de6db in start_thread (arg=0x7fc5b5faa700) at pthread_create.c:463
#6  0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fc5c2349700 (LWP 6452)):
#0  0x00007fc5f31e6bf9 in __GI___poll (fds=0x7fc5c23488e8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc5eaf4e747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc5eaf5036a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc5c404ded9 in QXcbEventReader::run (this=0x5643e927f410) at qxcbconnection.cpp:1391
#4  0x00007fc5f38fbadb in QThreadPrivate::start (arg=0x5643e927f410) at thread/qthread_unix.cpp:367
#5  0x00007fc5ed6de6db in start_thread (arg=0x7fc5c2349700) at pthread_create.c:463
#6  0x00007fc5f31f388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fc5f73ccbc0 (LWP 6451)):
#0  0x00007fc5ed6e49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7ffed334f2a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5643e9270888, cond=0x7ffed334f280) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ffed334f280, mutex=0x5643e9270888) at pthread_cond_wait.c:655
#3  0x00007fc5eaf4e952 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007fc5eaf5006f in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#5  0x00007fc5eaf50180 in xcb_wait_for_reply () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#6  0x00007fc5c407225d in QXcbCursor::queryPointer (c=0x5643e926f260, virtualDesktop=virtualDesktop@entry=0x0, pos=pos@entry=0x7ffed334f370, keybMask=keybMask@entry=0x0) at qxcbcursor.cpp:638
#7  0x00007fc5c407238c in QXcbCursor::pos (this=<optimized out>) at qxcbcursor.cpp:660
#8  0x00007fc5f40658e8 in QCursor::pos (screen=<optimized out>) at kernel/qcursor.cpp:196
#9  0x00007fc5f4aab37f in QAbstractItemView::verticalScrollbarValueChanged (this=this@entry=0x5643e97938b0, value=value@entry=0) at itemviews/qabstractitemview.cpp:2768
#10 0x00007fc5f4b167af in QTreeView::verticalScrollbarValueChanged (this=0x5643e97938b0, value=0) at itemviews/qtreeview.cpp:4027
#11 0x00007fc5f4aa488f in QAbstractItemView::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qabstractitemview.cpp:422
#12 0x00007fc5f3af6075 in QMetaObject::activate (sender=sender@entry=0x5643e9790cc0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffed334f5c0) at kernel/qobject.cpp:3771
#13 0x00007fc5f3af6747 in QMetaObject::activate (sender=sender@entry=0x5643e9790cc0, m=m@entry=0x7fc5f4f23ec0 <QAbstractSlider::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffed334f5c0) at kernel/qobject.cpp:3633
#14 0x00007fc5f493c00e in QAbstractSlider::valueChanged (this=this@entry=0x5643e9790cc0, _t1=<optimized out>, _t1@entry=0) at .moc/moc_qabstractslider.cpp:304
#15 0x00007fc5f493c6cb in QAbstractSlider::setValue (this=0x5643e9790cc0, value=0) at widgets/qabstractslider.cpp:546
#16 0x00007fc5b208e7bc in Akregator::SelectionController::articleHeadersAvailable (this=<optimized out>, job=<optimized out>) at ./src/selectioncontroller.cpp:251
#17 0x00007fc5f3af618f in QtPrivate::QSlotObjectBase::call (a=0x7ffed334f8c0, r=0x5643e979e380, this=0x5643e9b18a70) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#18 QMetaObject::activate (sender=0x5643e9933b00, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3754
#19 0x00007fc5f5523e89 in KJob::finished(KJob*, KJob::QPrivateSignal) () from /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#20 0x00007fc5f5524ad2 in KJob::finishJob(bool) () from /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#21 0x00007fc5f6de7ce7 in Akregator::ArticleListJob::doList (this=0x5643e9933b00) at ./src/articlejobs.cpp:195
#22 0x00007fc5f3b02ef4 in QtPrivate::QSlotObjectBase::call (a=0x7ffed334f970, r=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#23 QSingleShotTimer::timerEvent (this=0x5643e9dbec90) at kernel/qtimer.cpp:318
#24 0x00007fc5f3af6b9b in QObject::event (this=0x5643e9dbec90, e=<optimized out>) at kernel/qobject.cpp:1273
#25 0x00007fc5f4853e1c in QApplicationPrivate::notify_helper (this=this@entry=0x5643e921de80, receiver=receiver@entry=0x5643e9dbec90, e=e@entry=0x7ffed334fc40) at kernel/qapplication.cpp:3727
#26 0x00007fc5f485b3ef in QApplication::notify (this=0x7ffed3350050, receiver=0x5643e9dbec90, e=0x7ffed334fc40) at kernel/qapplication.cpp:3486
#27 0x00007fc5f3ac6fe8 in QCoreApplication::notifyInternal2 (receiver=0x5643e9dbec90, event=event@entry=0x7ffed334fc40) at kernel/qcoreapplication.cpp:1048
#28 0x00007fc5f3b204be in QCoreApplication::sendEvent (event=0x7ffed334fc40, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#29 QTimerInfoList::activateTimers (this=0x5643e92a82f0) at kernel/qtimerinfo_unix.cpp:643
#30 0x00007fc5f3b20cb9 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#31 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:229
#32 0x00007fc5eb3bc387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fc5eb3bc5c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fc5eb3bc64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fc5f3b2102f in QEventDispatcherGlib::processEvents (this=0x5643e92aa560, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#36 0x00007fc5c40d9761 in QPAEventDispatcherGlib::processEvents (this=0x5643e92aa560, flags=...) at qeventdispatcher_glib.cpp:69
#37 0x00007fc5f3ac530a in QEventLoop::exec (this=this@entry=0x7ffed334feb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#38 0x00007fc5f3ace4d0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#39 0x00005643e871aa80 in main (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:122

Possible duplicates by query: bug 400494, bug 400307, bug 399299, bug 393566, bug 385847.

Reported using DrKonqi
Comment 1 András Manţia 2018-12-14 20:51:36 UTC 
Most probably a duplicate of 371511, so let's track there, as it will be soon fixed.

*** This bug has been marked as a duplicate of bug 371511 ***