Application: akregator (4.14.2)
KDE Platform Version: 4.14.2
Qt Version: 4.8.7
Operating System: Linux 4.0.0-2-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

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

Opened a feed with very many unread articles, and started going over them. At some point, when moving (with KB -- right arrow, "next article"), akregator crashed.

-- Backtrace:
Application: Akregator (akregator), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  GetAt (nIndex=<optimized out>, this=0x3be9aa0) at ../../../../akregator/plugins/mk4storage/metakit/src/univ.inl:54
#7  c4_Column::ReleaseSegment (this=0x3be9aa0, index_=<optimized out>) at ../../../../akregator/plugins/mk4storage/metakit/src/column.cpp:116
#8  0x00007f4a02a98d6d in c4_Column::ReleaseAllSegments (this=this@entry=0x3be9aa0) at ../../../../akregator/plugins/mk4storage/metakit/src/column.cpp:124
#9  0x00007f4a02a98dc1 in c4_Column::SetLocation (this=this@entry=0x3be9aa0, pos_=pos_@entry=-228961430, size_=size_@entry=125) at ../../../../akregator/plugins/mk4storage/metakit/src/column.cpp:142
#10 0x00007f4a02aa5c03 in c4_SaveContext::CommitColumn (this=this@entry=0x7ffd46207400, col_=...) at ../../../../akregator/plugins/mk4storage/metakit/src/persist.cpp:819
#11 0x00007f4a02aa1895 in c4_FormatB::Commit (this=0x24c86f0, ar_=...) at ../../../../akregator/plugins/mk4storage/metakit/src/format.cpp:775
#12 0x00007f4a02aa5cdd in c4_SaveContext::CommitSequence (this=this@entry=0x7ffd46207400, seq_=..., selfDesc_=selfDesc_@entry=false) at ../../../../akregator/plugins/mk4storage/metakit/src/persist.cpp:841
#13 0x00007f4a02aa269a in c4_FormatV::Commit (this=0x24c4790, ar_=...) at ../../../../akregator/plugins/mk4storage/metakit/src/format.cpp:1174
#14 0x00007f4a02aa5cdd in c4_SaveContext::CommitSequence (this=this@entry=0x7ffd46207400, seq_=..., selfDesc_=selfDesc_@entry=true) at ../../../../akregator/plugins/mk4storage/metakit/src/persist.cpp:841
#15 0x00007f4a02aa62aa in c4_SaveContext::SaveIt (this=this@entry=0x7ffd46207400, root_=..., spacePtr_=spacePtr_@entry=0x24c7170, rootWalk_=...) at ../../../../akregator/plugins/mk4storage/metakit/src/persist.cpp:709
#16 0x00007f4a02aa6619 in c4_Persist::Commit (this=0x24c7170, full_=<optimized out>) at ../../../../akregator/plugins/mk4storage/metakit/src/persist.cpp:933
#17 0x00007f4a02aa66c1 in c4_Persist::Commit (this=<optimized out>, full_=<optimized out>) at ../../../../akregator/plugins/mk4storage/metakit/src/persist.cpp:935
#18 0x00007f4a02aab51e in c4_Storage::Commit (this=<optimized out>, full_=full_@entry=false) at ../../../../akregator/plugins/mk4storage/metakit/src/store.cpp:361
#19 0x00007f4a02ab0d7f in Akregator::Backend::FeedStorageMK4Impl::commit (this=0x208c860) at ../../../../akregator/plugins/mk4storage/feedstoragemk4impl.cpp:181
#20 0x00007f4a02ab6dd5 in Akregator::Backend::StorageMK4Impl::commit (this=0x1f9fe00) at ../../../../akregator/plugins/mk4storage/storagemk4impl.cpp:178
#21 0x00007f4a02ab633a in Akregator::Backend::StorageMK4Impl::slotCommit (this=0x1f9fe00) at ../../../../akregator/plugins/mk4storage/storagemk4impl.cpp:283
#22 0x00007f4a1bab038c in QMetaObject::activate (sender=sender@entry=0x9e9b6f0, m=m@entry=0x7f4a1bdfe540 <QSingleShotTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3567
#23 0x00007f4a1bab96ba in timeout (this=0x9e9b6f0) at .moc/release-shared/qtimer.moc:96
#24 QSingleShotTimer::timerEvent (this=0x9e9b6f0) at kernel/qtimer.cpp:317
#25 0x00007f4a1bab4953 in QObject::event (this=0x9e9b6f0, e=<optimized out>) at kernel/qobject.cpp:1253
#26 0x00007f4a1c4ba7bc in QApplicationPrivate::notify_helper (this=this@entry=0x1cf0e80, receiver=receiver@entry=0x9e9b6f0, e=e@entry=0x7ffd46207b10) at kernel/qapplication.cpp:4570
#27 0x00007f4a1c4c12d8 in QApplication::notify (this=this@entry=0x7ffd46207f70, receiver=receiver@entry=0x9e9b6f0, e=e@entry=0x7ffd46207b10) at kernel/qapplication.cpp:4356
#28 0x00007f4a1d2381aa in KApplication::notify (this=0x7ffd46207f70, receiver=0x9e9b6f0, event=0x7ffd46207b10) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x00007f4a1ba9b36d in QCoreApplication::notifyInternal (this=0x7ffd46207f70, receiver=0x9e9b6f0, event=event@entry=0x7ffd46207b10) at kernel/qcoreapplication.cpp:955
#30 0x00007f4a1baccffb in sendEvent (event=0x7ffd46207b10, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 QTimerInfoList::activateTimers (this=0x1cf61a0) at kernel/qeventdispatcher_unix.cpp:621
#32 0x00007f4a1baca069 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#33 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:233
#34 0x00007f4a15981c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f4a15981f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f4a15981fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f4a1baca98d in QEventDispatcherGlib::processEvents (this=0x1c87dc0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#38 0x00007f4a1c562396 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007f4a1ba99ec1 in QEventLoop::processEvents (this=this@entry=0x7ffd46207d90, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007f4a1ba9a225 in QEventLoop::exec (this=this@entry=0x7ffd46207d90, flags=...) at kernel/qeventloop.cpp:204
#41 0x00007f4a1ba9fca9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#42 0x00007f4a1c4b8c5c in QApplication::exec () at kernel/qapplication.cpp:3828
#43 0x0000000000407741 in main (argc=<optimized out>, argv=<optimized out>) at ../../../akregator/src/main.cpp:102

Reported using DrKonqi