Bug 402127 - Crash after clicking on feeds after disabling and enabling it
Summary: Crash after clicking on feeds after disabling and enabling it
Status: RESOLVED DUPLICATE of bug 378513
Alias: None
Product: kontact
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Fedora RPMs Linux
: NOR crash
Target Milestone: ---
Assignee: kdepim bugs
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2018-12-14 16:12 UTC by sedrubal
Modified: 2019-01-09 05:24 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

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Description sedrubal 2018-12-14 16:12:46 UTC 
Application: kontact (5.9.3)

Qt Version: 5.11.1
Frameworks Version: 5.52.0
Operating System: Linux 4.19.8-300.fc29.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

I disabled the feeds app in kontact settings and enabled it afterwards. When I click on the icon in the left side bar in kontact, kontact crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f01c95cc340 (LWP 19584))]

Thread 33 (Thread 0x7f01957fa700 (LWP 25608)):
#0  0x00007f01cd587b68 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fce7 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119ba in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11aa2 in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16861 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17d41 in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 32 (Thread 0x7f0196ffd700 (LWP 23218)):
#0  0x00007f01d4d60421 in poll () at /lib64/libc.so.6
#1  0x00007f01cad655a6 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f01cad656d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f01d540d82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f01d53bc17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f01d5224046 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f01d522d4bb in  () at /lib64/libQt5Core.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 31 (Thread 0x7f0099bcb700 (LWP 21976)):
#0  0x00007f01b059a7ee in pa_mainloop_prepare () at /lib64/libpulse.so.0
#1  0x00007f01b059b294 in pa_mainloop_iterate () at /lib64/libpulse.so.0
#2  0x00007f01b059b350 in pa_mainloop_run () at /lib64/libpulse.so.0
#3  0x00007f01b05a95bd in thread () at /lib64/libpulse.so.0
#4  0x00007f01b054606c in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#5  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#6  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 30 (Thread 0x7f00850ba700 (LWP 19729)):
#0  0x00007f01d4d5bf84 in read () at /lib64/libc.so.6
#1  0x00007f01cadabaa0 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f01cad6509b in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f01cad65550 in  () at /lib64/libglib-2.0.so.0
#4  0x00007f01cad656d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f01d540d82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f01d53bc17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f01d5224046 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f01d522d4bb in  () at /lib64/libQt5Core.so.5
#9  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#10 0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 29 (Thread 0x7f00858bb700 (LWP 19726)):
#0  0x00007f01d4d60421 in poll () at /lib64/libc.so.6
#1  0x00007f01cad655a6 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f01cad656d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f01d540d82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f01d53bc17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f01d5224046 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f01d522d4bb in  () at /lib64/libQt5Core.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 28 (Thread 0x7f009ae49700 (LWP 19697)):
#0  0x00007f01cd587b68 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fce7 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119ba in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11aa2 in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16861 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17d41 in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 27 (Thread 0x7f009bfff700 (LWP 19651)):
#0  0x00007f01d4d60421 in poll () at /lib64/libc.so.6
#1  0x00007f01cad655a6 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f01cad656d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f01d540d82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f01d53bc17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f01d5224046 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f01d522d4bb in  () at /lib64/libQt5Core.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 26 (Thread 0x7f00ad2da700 (LWP 19636)):
#0  0x00007f01cad64d03 in g_main_context_query () at /lib64/libglib-2.0.so.0
#1  0x00007f01cad65527 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f01cad656d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f01d540d82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f01d53bc17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f01d5224046 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f01d522d4bb in  () at /lib64/libQt5Core.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f00adadb700 (LWP 19634)):
#0  0x00007f01d4d60421 in poll () at /lib64/libc.so.6
#1  0x00007f01cad655a6 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f01cad656d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f01d540d82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f01d53bc17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f01d5224046 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f01d522d4bb in  () at /lib64/libQt5Core.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f00ae35a700 (LWP 19633)):
#0  0x00007f01d4d5bf84 in read () at /lib64/libc.so.6
#1  0x00007f01cadabaa0 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f01cad6509b in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f01cad65550 in  () at /lib64/libglib-2.0.so.0
#4  0x00007f01cad656d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f01d540d82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f01d53bc17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f01d5224046 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f01d522d4bb in  () at /lib64/libQt5Core.so.5
#9  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#10 0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f00afc87700 (LWP 19624)):
#0  0x00007f01d4d78dbc in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f01d4d7ac68 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f01ca6c5e7f in event_logv_ () at /lib64/libevent-2.1.so.6
#3  0x00007f01ca6c6048 in event_warn () at /lib64/libevent-2.1.so.6
#4  0x00007f01ca6c7a40 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#5  0x00007f01ca6bd598 in event_base_loop () at /lib64/libevent-2.1.so.6
#6  0x00007f01cfee4834 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cff0395b in  () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f01cff26724 in  () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#11 0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f0159ffb700 (LWP 19615)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01c9a49f5a in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f01c9a49fc5 in  () at /lib64/libQt5Script.so.5
#3  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#4  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f0158f36700 (LWP 19614)):
#0  0x00007f01d4d5bf84 in read () at /lib64/libc.so.6
#1  0x00007f01b0516355 in pa_read () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#2  0x00007f01b059a826 in pa_mainloop_prepare () at /lib64/libpulse.so.0
#3  0x00007f01b059b294 in pa_mainloop_iterate () at /lib64/libpulse.so.0
#4  0x00007f01b059b350 in pa_mainloop_run () at /lib64/libpulse.so.0
#5  0x00007f01b05a95bd in thread () at /lib64/libpulse.so.0
#6  0x00007f01b054606c in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f015a7fc700 (LWP 19613)):
#0  0x00007f01d4d78dbc in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f01d4d7ac68 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f01ca6c5e7f in event_logv_ () at /lib64/libevent-2.1.so.6
#3  0x00007f01ca6c6048 in event_warn () at /lib64/libevent-2.1.so.6
#4  0x00007f01ca6c7a40 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#5  0x00007f01ca6bd598 in event_base_loop () at /lib64/libevent-2.1.so.6
#6  0x00007f01cfee474d in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cff0395b in  () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f01cff26724 in  () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#11 0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f015affd700 (LWP 19612)):
#0  0x00007f01cd587b68 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fce7 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119ba in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cfede1f0 in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff0395b in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff26724 in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f015b7fe700 (LWP 19611)):
#0  0x00007f01cd587b68 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fce7 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119ba in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cfede1f0 in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff0395b in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff26724 in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f015bfff700 (LWP 19610)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fc19 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01d090bcf8 in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff29296 in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#6  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f017cff9700 (LWP 19609)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fc19 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119c8 in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11a5f in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16878 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17d41 in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f017d7fa700 (LWP 19608)):
#0  0x00007f01d4d5c02f in write () at /lib64/libc.so.6
#1  0x00007f01d4ceb95d in _IO_file_write@@GLIBC_2.2.5 () at /lib64/libc.so.6
#2  0x00007f01d4ceaccf in new_do_write () at /lib64/libc.so.6
#3  0x00007f01d4cec08e in __GI__IO_file_xsputn () at /lib64/libc.so.6
#4  0x00007f01d4cc22da in buffered_vfprintf () at /lib64/libc.so.6
#5  0x00007f01d4cbf6f2 in vfprintf () at /lib64/libc.so.6
#6  0x00007f01d4d7acba in __fprintf_chk () at /lib64/libc.so.6
#7  0x00007f01ca6c5e7f in event_logv_ () at /lib64/libevent-2.1.so.6
#8  0x00007f01ca6c6048 in event_warn () at /lib64/libevent-2.1.so.6
#9  0x00007f01ca6c7a40 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#10 0x00007f01ca6bd598 in event_base_loop () at /lib64/libevent-2.1.so.6
#11 0x00007f01cfee46f9 in  () at /lib64/libQt5WebEngineCore.so.5
#12 0x00007f01cff0395b in  () at /lib64/libQt5WebEngineCore.so.5
#13 0x00007f01cf0199ea in  () at /lib64/libQt5WebEngineCore.so.5
#14 0x00007f01cf019e97 in  () at /lib64/libQt5WebEngineCore.so.5
#15 0x00007f01cff26858 in  () at /lib64/libQt5WebEngineCore.so.5
#16 0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#17 0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#18 0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f017dffb700 (LWP 19607)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fc19 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119c8 in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11a5f in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16878 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17b5f in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f017e7fc700 (LWP 19606)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fc19 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119c8 in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11a5f in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16878 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17d41 in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f017effd700 (LWP 19605)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fc19 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119c8 in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11a5f in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16878 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17b5f in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f017f7fe700 (LWP 19604)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fc19 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119c8 in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11a5f in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16878 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17b5f in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f017ffff700 (LWP 19603)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fc19 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119c8 in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11a5f in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16878 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17b5f in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f01967fc700 (LWP 19599)):
#0  0x00007f01cd587b68 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fce7 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119ba in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11aa2 in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16861 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17d41 in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f01977fe700 (LWP 19597)):
#0  0x00007f01cd587b68 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fce7 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119ba in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11aa2 in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cff16861 in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff17d41 in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f0197fff700 (LWP 19596)):
#0  0x00007f01d4d78de9 in __lll_unlock_wake_private () at /lib64/libc.so.6
#1  0x00007f01d4d7ad00 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f01ca6c5e7f in event_logv_ () at /lib64/libevent-2.1.so.6
#3  0x00007f01ca6c6048 in event_warn () at /lib64/libevent-2.1.so.6
#4  0x00007f01ca6c7a40 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#5  0x00007f01ca6bd598 in event_base_loop () at /lib64/libevent-2.1.so.6
#6  0x00007f01cfee4834 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cff0395b in  () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f01cff26724 in  () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#11 0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f01b0e02700 (LWP 19595)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01cff0fc19 in  () at /lib64/libQt5WebEngineCore.so.5
#2  0x00007f01cff119c8 in  () at /lib64/libQt5WebEngineCore.so.5
#3  0x00007f01cff11a5f in  () at /lib64/libQt5WebEngineCore.so.5
#4  0x00007f01cfede1df in  () at /lib64/libQt5WebEngineCore.so.5
#5  0x00007f01cff0395b in  () at /lib64/libQt5WebEngineCore.so.5
#6  0x00007f01cff26724 in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#9  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f01b1603700 (LWP 19594)):
#0  0x00007f01d4d78dbc in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f01d4d7ac68 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f01ca6c5e7f in event_logv_ () at /lib64/libevent-2.1.so.6
#3  0x00007f01ca6c6048 in event_warn () at /lib64/libevent-2.1.so.6
#4  0x00007f01ca6c7a40 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#5  0x00007f01ca6bd598 in event_base_loop () at /lib64/libevent-2.1.so.6
#6  0x00007f01cfee474d in  () at /lib64/libQt5WebEngineCore.so.5
#7  0x00007f01cff0395b in  () at /lib64/libQt5WebEngineCore.so.5
#8  0x00007f01cff26724 in  () at /lib64/libQt5WebEngineCore.so.5
#9  0x00007f01cff22171 in  () at /lib64/libQt5WebEngineCore.so.5
#10 0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#11 0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f01b3fff700 (LWP 19587)):
#0  0x00007f01d4d5bf84 in read () at /lib64/libc.so.6
#1  0x00007f01cadabaa0 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f01cad6509b in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f01cad65550 in  () at /lib64/libglib-2.0.so.0
#4  0x00007f01cad656d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f01d540d82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f01d53bc17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f01d5224046 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f01d63c8f89 in  () at /lib64/libQt5DBus.so.5
#9  0x00007f01d522d4bb in  () at /lib64/libQt5Core.so.5
#10 0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#11 0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f01ba083700 (LWP 19586)):
#0  0x00007f01cd58777c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f01bad2fb93 in  () at /usr/lib64/dri/i965_dri.so
#2  0x00007f01bad2f8eb in  () at /usr/lib64/dri/i965_dri.so
#3  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#4  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f01bc3a0700 (LWP 19585)):
#0  0x00007f01d4d60421 in poll () at /lib64/libc.so.6
#1  0x00007f01cd3d539f in  () at /lib64/libxcb.so.1
#2  0x00007f01cd3d701a in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f01bc4b4da9 in  () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f01d522d4bb in  () at /lib64/libQt5Core.so.5
#5  0x00007f01cd58158e in start_thread () at /lib64/libpthread.so.0
#6  0x00007f01d4d6b6a3 in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f01c95cc340 (LWP 19584)):
[KCrash Handler]
#6  0x00007f01d53c67ab in QMetaObject::cast(QObject const*) const () at /lib64/libQt5Core.so.5
#7  0x00007f009af8c594 in Akregator::FrameManager::saveProperties(KConfigGroup&) () at /lib64/libakregatorprivate.so.5
#8  0x00007f00ac148fb7 in Akregator::MainWidget::saveProperties(KConfigGroup&) () at /usr/lib64/qt5/plugins/akregatorpart.so
#9  0x00007f00ac1419a3 in  () at /usr/lib64/qt5/plugins/akregatorpart.so
#10 0x00007f01d53e60f6 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#11 0x00007f01d5e592a5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#12 0x00007f01d5e609c0 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#13 0x00007f01d53bd236 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#14 0x00007f01d53c040b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#15 0x00007f01d540da87 in  () at /lib64/libQt5Core.so.5
#16 0x00007f01cad6526d in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#17 0x00007f01cad65638 in  () at /lib64/libglib-2.0.so.0
#18 0x00007f01cad656d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#19 0x00007f01d540d813 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#20 0x00007f01bc547f15 in  () at /lib64/libQt5XcbQpa.so.5
#21 0x00007f01d53bc17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#22 0x00007f01d53c4246 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#23 0x0000564d260fad1c in  ()
#24 0x00007f01d4c92413 in __libc_start_main () at /lib64/libc.so.6
#25 0x0000564d260fb51e in _start ()
[Inferior 1 (process 19584) detached]

Reported using DrKonqi
Comment 1 blackfireburn 2018-12-17 20:12:59 UTC 
tested in kde neon 14.4 
kontact Version 5.10.0

steps
open kontact click feeds check its working 
go to kontact settings and disable feeds
press apply and ok 
click around other elements, everything is working as expected.
go back to setting and enable feeds 
press apply and ok 
click on feeds and kontact crashes




then a couple thousans of these :
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor
[warn] epoll_wait: Bad file descriptor

[1]+  Stopped                 kontact
Comment 2 Christoph Feck 2019-01-09 05:24:28 UTC 

*** This bug has been marked as a duplicate of bug 378513 ***