Bug 415902

Summary: Akregator crashes when opening a post
Product: [Applications] akregator Reporter: Pekka Korkki <pekka.korkki>
Component: generalAssignee: kdepim bugs <kdepim-bugs>
Status: RESOLVED FIXED    
Severity: crash CC: ricardo
Priority: NOR Keywords: drkonqi
Version: 5.11.3   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Pekka Korkki 2020-01-05 17:15:42 UTC 
Application: akregator (5.11.3)

Qt Version: 5.12.5
Frameworks Version: 5.64.0
Operating System: Linux 5.3.16-300.fc31.x86_64 x86_64
Distribution: "Fedora release 31 (Thirty One)"

-- Information about the crash:
I'm on a fresh installation of Fedora 31 KDE Spin. Akregator has been very crash-prone since the installation and after all the updates that have arrived so far. The current version of Akregator on my system is 5.11.3.

The crashes seem to happen when I move to an unread feed or post. I usually use the keyboard shortcuts for navigation but I doubt it's relevant since I have been able to replicate this even when using the trackpad.

I know of at least one occasion where Akregator just crashed on it's own without me doing anything in it at the time.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Akregator (akregator), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2f0f668f40 (LWP 3114))]

Thread 19 (Thread 0x7f2ed37fe700 (LWP 3430)):
#0  0x00007f2f18db907a in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2f1befad8a in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f2f1befb747 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f2f1befb841 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f2f1bebbf72 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f2f1bebea85 in base::internal::SchedulerWorker::RunWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f2f1bebf044 in base::internal::SchedulerWorker::RunPooledWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f2e7f5ff700 (LWP 3334)):
#0  0x00007f2f18db907a in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2f1befad8a in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f2f1befb747 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f2f1befb841 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f2f1bebbf72 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f2f1bebed98 in base::internal::SchedulerWorker::RunWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f2f1bebf044 in base::internal::SchedulerWorker::RunPooledWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f2eb0ff9700 (LWP 3170)):
#0  0x00007f2f18db8d45 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2f1befacba in base::ConditionVariable::Wait() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f2f1befb758 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f2f1befb7ff in base::WaitableEvent::Wait() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f2f1bebbf88 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f2f1bebed98 in base::internal::SchedulerWorker::RunWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f2f1bebf0c4 in base::internal::SchedulerWorker::RunDedicatedWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f2eb17fa700 (LWP 3169)):
#0  0x00007f2f20db64ef in write () at /lib64/libc.so.6
#1  0x00007f2f20d464cd in _IO_file_write@@GLIBC_2.2.5 () at /lib64/libc.so.6
#2  0x00007f2f20d45826 in new_do_write () at /lib64/libc.so.6
#3  0x00007f2f20d46bfe in __GI__IO_file_xsputn () at /lib64/libc.so.6
#4  0x00007f2f20d326b1 in buffered_vfprintf () at /lib64/libc.so.6
#5  0x00007f2f20d2f654 in __vfprintf_internal () at /lib64/libc.so.6
#6  0x00007f2f20dd3be3 in __fprintf_chk () at /lib64/libc.so.6
#7  0x00007f2f15026916 in event_logv_ () at /lib64/libevent-2.1.so.6
#8  0x00007f2f15026ae9 in event_warn () at /lib64/libevent-2.1.so.6
#9  0x00007f2f15028548 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#10 0x00007f2f1501e0b5 in event_base_loop () at /lib64/libevent-2.1.so.6
#11 0x00007f2f1bf014d4 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#12 0x00007f2f1be9a76f in base::RunLoop::Run() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#13 0x00007f2f1beccdce in base::Thread::ThreadMain() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#14 0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#15 0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#16 0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f2eb2ffd700 (LWP 3138)):
#0  0x00007f2f20db644c in read () at /lib64/libc.so.6
#1  0x00007f2f183ad53f in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007f2f18365357 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f2f183657b2 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007f2f18365943 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f2f21342da3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f2f212eccfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f2f211453a5 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f2f211464f6 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f2eb37fe700 (LWP 3137)):
#0  0x00007f2f20db644c in read () at /lib64/libc.so.6
#1  0x00007f2ef4bdb365 in pa_read () at /usr/lib64/pulseaudio/libpulsecommon-13.0.so
#2  0x00007f2ef4c653d6 in pa_mainloop_prepare () at /lib64/libpulse.so.0
#3  0x00007f2ef4c65e74 in pa_mainloop_iterate () at /lib64/libpulse.so.0
#4  0x00007f2ef4c65f30 in pa_mainloop_run () at /lib64/libpulse.so.0
#5  0x00007f2ef4c740dd in thread () at /lib64/libpulse.so.0
#6  0x00007f2ef4c09b9c in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-13.0.so
#7  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f2eb3fff700 (LWP 3136)):
#0  0x00007f2f20d4adfb in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f2f20d327ce in buffered_vfprintf () at /lib64/libc.so.6
#2  0x00007f2f20d2f654 in __vfprintf_internal () at /lib64/libc.so.6
#3  0x00007f2f20dd3be3 in __fprintf_chk () at /lib64/libc.so.6
#4  0x00007f2f15026916 in event_logv_ () at /lib64/libevent-2.1.so.6
#5  0x00007f2f15026ae9 in event_warn () at /lib64/libevent-2.1.so.6
#6  0x00007f2f15028548 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#7  0x00007f2f1501e0b5 in event_base_loop () at /lib64/libevent-2.1.so.6
#8  0x00007f2f1bf013ea in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#9  0x00007f2f1be9a76f in base::RunLoop::Run() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#10 0x00007f2f1beccdce in base::Thread::ThreadMain() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#11 0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#12 0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#13 0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f2ed0ff9700 (LWP 3135)):
#0  0x00007f2f18db907a in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2f1befad8a in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f2f1befb747 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f2f1be786e8 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f2f1be9a76f in base::RunLoop::Run() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f2f1beccdce in base::Thread::ThreadMain() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f2ed17fa700 (LWP 3134)):
#0  0x00007f2f18db907a in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2f1befad8a in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f2f1befb747 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f2f1be786e8 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f2f1be9a76f in base::RunLoop::Run() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f2f1beccdce in base::Thread::ThreadMain() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f2ed1ffb700 (LWP 3133)):
#0  0x00007f2f18db8d45 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2f1befacba in base::ConditionVariable::Wait() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f2f1c6d5738 in cc::SingleThreadTaskGraphRunner::Run() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f2f1bece2ed in base::SimpleThread::ThreadMain() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f2ed27fc700 (LWP 3132)):
#0  0x00007f2f18db8d45 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2f1befacba in base::ConditionVariable::Wait() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f2f1befb758 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f2f1befb7ff in base::WaitableEvent::Wait() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f2f1bebbf88 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f2f1bebed98 in base::internal::SchedulerWorker::RunWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f2f1bebf084 in base::internal::SchedulerWorker::RunSharedWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f2ed2ffd700 (LWP 3131)):
#0  0x00007f2f20d4adfb in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f2f20d327ce in buffered_vfprintf () at /lib64/libc.so.6
#2  0x00007f2f20d2f654 in __vfprintf_internal () at /lib64/libc.so.6
#3  0x00007f2f20dd3be3 in __fprintf_chk () at /lib64/libc.so.6
#4  0x00007f2f15026916 in event_logv_ () at /lib64/libevent-2.1.so.6
#5  0x00007f2f15026ae9 in event_warn () at /lib64/libevent-2.1.so.6
#6  0x00007f2f15028548 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#7  0x00007f2f1501e0b5 in event_base_loop () at /lib64/libevent-2.1.so.6
#8  0x00007f2f1bf014d4 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#9  0x00007f2f1be9a76f in base::RunLoop::Run() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#10 0x00007f2f1b83db74 in content::BrowserProcessSubThread::IOThreadRun(base::RunLoop*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#11 0x00007f2f1beccf28 in base::Thread::ThreadMain() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#12 0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#13 0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f2eed7fa700 (LWP 3127)):
#0  0x00007f2f18db907a in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2f1befad8a in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f2f1befb747 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f2f1befb841 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f2f1bebbf72 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f2f1bebed98 in base::internal::SchedulerWorker::RunWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f2f1bebf044 in base::internal::SchedulerWorker::RunPooledWorker() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f2eedffb700 (LWP 3126)):
#0  0x00007f2f20d4adfb in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f2f20d327ce in buffered_vfprintf () at /lib64/libc.so.6
#2  0x00007f2f20d2f654 in __vfprintf_internal () at /lib64/libc.so.6
#3  0x00007f2f20dd3be3 in __fprintf_chk () at /lib64/libc.so.6
#4  0x00007f2f15026916 in event_logv_ () at /lib64/libevent-2.1.so.6
#5  0x00007f2f15026ae9 in event_warn () at /lib64/libevent-2.1.so.6
#6  0x00007f2f15028548 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#7  0x00007f2f1501e0b5 in event_base_loop () at /lib64/libevent-2.1.so.6
#8  0x00007f2f1bf01398 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#9  0x00007f2f1be9a76f in base::RunLoop::Run() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#10 0x00007f2f1bec22e4 in base::internal::ServiceThread::Run(base::RunLoop*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#11 0x00007f2f1beccf28 in base::Thread::ThreadMain() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#12 0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#13 0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f2eeeffd700 (LWP 3124)):
#0  0x00007f2f20d4adfb in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f2f20d327ce in buffered_vfprintf () at /lib64/libc.so.6
#2  0x00007f2f20d2f654 in __vfprintf_internal () at /lib64/libc.so.6
#3  0x00007f2f20dd3be3 in __fprintf_chk () at /lib64/libc.so.6
#4  0x00007f2f15026916 in event_logv_ () at /lib64/libevent-2.1.so.6
#5  0x00007f2f15026ae9 in event_warn () at /lib64/libevent-2.1.so.6
#6  0x00007f2f15028548 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#7  0x00007f2f1501e0b5 in event_base_loop () at /lib64/libevent-2.1.so.6
#8  0x00007f2f1bf01398 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#9  0x00007f2f1be9a76f in base::RunLoop::Run() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#10 0x00007f2f1beccdce in base::Thread::ThreadMain() () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#11 0x00007f2f1befdcbf in base::(anonymous namespace)::ThreadFunc(void*) () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#12 0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#13 0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f2ef6176700 (LWP 3117)):
#0  0x00007f2f183b1a78 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f2f18364d21 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f2f1836573b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f2f18365943 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f2f21342da3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f2f212eccfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f2f211453a5 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f2f2240ff4a in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#8  0x00007f2f211464f6 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f2ef6a8c700 (LWP 3116)):
#0  0x00007f2f18db8d45 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f2f00a7111b in util_queue_thread_func () at /usr/lib64/dri/nouveau_dri.so
#2  0x00007f2f00a70d2b in impl_thrd_routine () at /usr/lib64/dri/nouveau_dri.so
#3  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f2f023da700 (LWP 3115)):
#0  0x00007f2f20dbaa6f in poll () at /lib64/libc.so.6
#1  0x00007f2f182f438a in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f2f182f5fea in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f2f0253aac8 in QXcbEventQueue::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f2f211464f6 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f2f18db24e2 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f2f20dc5693 in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f2f0f668f40 (LWP 3114)):
[KCrash Handler]
#6  0x00007f2f20d00625 in raise () at /lib64/libc.so.6
#7  0x00007f2f20ce98d9 in abort () at /lib64/libc.so.6
#8  0x00007f2f20ce97a9 in _nl_load_domain.cold () at /lib64/libc.so.6
#9  0x00007f2f20cf8a66 in annobin_assert.c_end () at /lib64/libc.so.6
#10 0x00007f2f001d07b7 in  () at /lib64/libdrm_nouveau.so.2
#11 0x00007f2f001d0717 in nouveau_pushbuf_data () at /lib64/libdrm_nouveau.so.2
#12 0x00007f2f001d083c in pushbuf_submit.isra () at /lib64/libdrm_nouveau.so.2
#13 0x00007f2f001d0c5f in pushbuf_flush () at /lib64/libdrm_nouveau.so.2
#14 0x00007f2f001d1854 in nouveau_pushbuf_kick () at /lib64/libdrm_nouveau.so.2
#15 0x00007f2f0063d5bd in nvc0_flush () at /usr/lib64/dri/nouveau_dri.so
#16 0x00007f2f00790013 in st_context_flush () at /usr/lib64/dri/nouveau_dri.so
#17 0x00007f2f002fabc6 in dri_flush () at /usr/lib64/dri/nouveau_dri.so
#18 0x00007f2f01866ea7 in loader_dri3_swap_buffers_msc () at /lib64/libGLX_mesa.so.0
#19 0x00007f2f02660d7a in QGLXContext::swapBuffers(QPlatformSurface*) () at /usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#20 0x00007f2f216f8d91 in QOpenGLContext::swapBuffers(QSurface*) () at /lib64/libQt5Gui.so.5
#21 0x00007f2f21951adf in QPlatformBackingStore::composeAndFlush(QWindow*, QRegion const&, QPoint const&, QPlatformTextureList*, bool) () at /lib64/libQt5Gui.so.5
#22 0x00007f2f0252e858 in QXcbBackingStore::composeAndFlush(QWindow*, QRegion const&, QPoint const&, QPlatformTextureList*, bool) () at /lib64/libQt5XcbQpa.so.5
#23 0x00007f2f21c61ec6 in QWidgetBackingStore::qt_flush(QWidget*, QRegion const&, QBackingStore*, QWidget*, QPlatformTextureList*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#24 0x00007f2f21c63908 in QWidgetBackingStore::flush(QWidget*) () at /lib64/libQt5Widgets.so.5
#25 0x00007f2f21c64f41 in QWidgetBackingStore::doSync() () at /lib64/libQt5Widgets.so.5
#26 0x00007f2f21c652c1 in QWidgetBackingStore::sync() () at /lib64/libQt5Widgets.so.5
#27 0x00007f2f21c7d415 in QWidgetPrivate::syncBackingStore() () at /lib64/libQt5Widgets.so.5
#28 0x00007f2f21c95708 in QWidget::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#29 0x00007f2f21da9ef8 in QMainWindow::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#30 0x00007f2f225f7f1b in KMainWindow::event(QEvent*) () at /lib64/libKF5XmlGui.so.5
#31 0x00007f2f22642bdb in KXmlGuiWindow::event(QEvent*) () at /lib64/libKF5XmlGui.so.5
#32 0x00007f2f21c52ad6 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#33 0x00007f2f21c5c150 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#34 0x00007f2f212eddf8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#35 0x00007f2f212f0d9b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#36 0x00007f2f21342ff7 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#37 0x00007f2f18365510 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#38 0x00007f2f183658a0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#39 0x00007f2f18365943 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#40 0x00007f2f21342d85 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#41 0x00007f2f212eccfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#42 0x00007f2f212f4a26 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#43 0x0000562f8dca3686 in main ()
[Inferior 1 (process 3114) detached]

Possible duplicates by query: bug 415815, bug 415678, bug 415634, bug 415596, bug 415343.

Reported using DrKonqi
Comment 1 Ricardo J. Barberis 2021-03-17 16:48:13 UTC 
I haven't experienced Akregator crashes in a long time (maybe an ocassional crash but not nearly as often as Pekka Korkki reports).

Since Fedora 31 is (almost?) EOL I'd be nice to know if this still happens in newer versions of the distro with more up-to-date packages.

Otherwise I believe this bug can be closed.


Full info:

Operating System: Slackware64 -current (a.k.a 15.0-alpha1)
KDE Plasma Version: 5.21.3
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
Kernel Version: 5.10.23
OS Type: 64-bit
Graphics Platform: X11
Processors: 8 × Intel® Core™ i5-1035G1 CPU @ 1.00GHz
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics
Comment 2 Pekka Korkki 2021-03-19 14:49:07 UTC 
It's ok to close this. I'm on F33 now and don't even remember when I have last experienced this. Sorry I forgot to report this!