Application that crashed: akregator
Version of the application: 1.5.0
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.30-1-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
Until a month ago, akregator worked fine.
It seems the issue raised since 4.2.4 to 4.3.0 update but I'm not sure.

Now, just launching akregator ends in a pure and simple crash.
The application isn't usable anymore in this system.

That's not reproducible on another system where I've a similar setup (using 4.2.4 then upgrade to 4.3.0).

 -- Backtrace:
Application: Akregator (akregator), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7a97703750 (LWP 3000))]

Thread 2 (Thread 0x7f7a8160c950 (LWP 3004)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:217
#1  0x00007f7a95b99447 in QWaitConditionPrivate::wait (this=0x27b44d8, mutex=0x27b44d0, time=30000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=0x27b44d8, mutex=0x27b44d0, time=30000) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f7a95b8f281 in QThreadPoolThread::run (this=0x26d2290) at concurrent/qthreadpool.cpp:140
#4  0x00007f7a95b98475 in QThreadPrivate::start (arg=0x26d2290) at thread/qthread_unix.cpp:188
#5  0x00007f7a8fc0df9a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f7a9477256d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7a97703750 (LWP 3000)):
[KCrash Handler]
#5  c4_View::GetAt (this=0x0, id_=1073741792) at ../../../../akregator/plugins/mk4storage/metakit/include/mk4.inl:849
#6  c4_View::operator[] (this=0x0, id_=1073741792) at ../../../../akregator/plugins/mk4storage/metakit/include/mk4.inl:860
#7  c4_Differ::BaseOfDiff (this=0x0, id_=1073741792) at ../../../../akregator/plugins/mk4storage/metakit/src/persist.cpp:446
#8  0x00007f7a85e50d52 in c4_Column::SetupSegments (this=0x2876ef0) at ../../../../akregator/plugins/mk4storage/metakit/src/column.cpp:219
#9  0x00007f7a85e512d8 in c4_Column::LoadNow (this=0x7fff0c838220) at ../../../../akregator/plugins/mk4storage/metakit/src/column.inl:57
#10 c4_ColIter::Next (this=0x7fff0c838220) at ../../../../akregator/plugins/mk4storage/metakit/src/column.cpp:1452
#11 0x00007f7a85e51349 in c4_Column::FetchBytes (this=<value optimized out>, pos_=1073741792, len_=0, buffer_=..., forceCopy_=8) at ../../../../akregator/plugins/mk4storage/metakit/src/column.cpp:715
#12 0x00007f7a85e5ab90 in c4_FormatB::Define (this=0x2876e40, ptr_=0x7fff0c838398) at ../../../../akregator/plugins/mk4storage/metakit/src/format.cpp:400
#13 0x00007f7a85e5cc2e in c4_HandlerSeq::Prepare (this=0x28767c0, ptr_=0x7fff0c838398, selfDesc_=<value optimized out>) at ../../../../akregator/plugins/mk4storage/metakit/src/handler.cpp:321
#14 0x00007f7a85e5acba in c4_FormatV::SetupAllSubviews (this=0x2876cc0) at ../../../../akregator/plugins/mk4storage/metakit/src/format.cpp:963
#15 0x00007f7a85e5b076 in c4_FormatV::Get (this=0x0, index_=0, length_=@0x7fff0c83841c) at ../../../../akregator/plugins/mk4storage/metakit/src/format.cpp:1027
#16 0x00007f7a85e5c706 in c4_Handler::GetBytes (this=0x0, index_=1073741792, buf_=..., copySmall_=158) at ../../../../akregator/plugins/mk4storage/metakit/src/handler.cpp:53
#17 0x00007f7a85e68fe6 in c4_Sequence::Get (this=0x286e2a0, index_=0, propId_=<value optimized out>, buf_=...) at ../../../../akregator/plugins/mk4storage/metakit/src/viewx.cpp:319
#18 0x00007f7a85e69ee5 in c4_Reference::GetData (this=<value optimized out>) at ../../../../akregator/plugins/mk4storage/metakit/include/mk4.inl:421
#19 c4_ViewRef::operator c4_View (this=<value optimized out>) at ../../../../akregator/plugins/mk4storage/metakit/src/viewx.cpp:587
#20 0x00007f7a85e641a3 in c4_Storage::Description (this=<value optimized out>, name_=<value optimized out>) at ../../../../akregator/plugins/mk4storage/metakit/src/store.cpp:342
#21 0x00007f7a85e64b89 in c4_Storage::GetAs (this=0x2877aa0, 
    description_=0x7f7a85e738a8 "articles[guid:S,title:S,hash:I,guidIsHash:I,guidIsPermaLink:I,description:S,link:S,comments:I,commentsLink:S,status:I,pubDate:I,tags[tag:S],hasEnclosure:I,enclosureUrl:S,enclosureType:S,enclosureLengt"...) at ../../../../akregator/plugins/mk4storage/metakit/src/store.cpp:261
#22 0x00007f7a85e6f1ef in FeedStorageMK4Impl (this=0x2877a80, url=<value optimized out>, main=<value optimized out>) at ../../../../akregator/plugins/mk4storage/feedstoragemk4impl.cpp:154
#23 0x00007f7a85e71cc8 in Akregator::Backend::StorageMK4Impl::StorageMK4ImplPrivate::createFeedStorage (this=0x2504890, url=...) at ../../../../akregator/plugins/mk4storage/storagemk4impl.cpp:77
#24 0x00007f7a85e720ad in Akregator::Backend::StorageMK4Impl::archiveFor (this=<value optimized out>, url=...) at ../../../../akregator/plugins/mk4storage/storagemk4impl.cpp:97
#25 0x00007f7a87baa2b0 in Akregator::Feed::loadArticles (this=0x286f370) at ../../../akregator/src/feed.cpp:234
#26 0x00007f7a87bada7e in Akregator::Feed::fromOPML (e=..., storage=0x250b340) at ../../../akregator/src/feed.cpp:174
#27 0x00007f7a87bb8e66 in Akregator::FeedList::parseChildNodes (this=0x25211b0, node=<value optimized out>, parent=0x27d8b30) at ../../../akregator/src/feedlist.cpp:237
#28 0x00007f7a87bb909e in Akregator::FeedList::parseChildNodes (this=0x25211b0, node=<value optimized out>, parent=0x27bcab0) at ../../../akregator/src/feedlist.cpp:255
#29 0x00007f7a87bb9eba in Akregator::FeedList::readFromOpml (this=0x25211b0, doc=<value optimized out>) at ../../../akregator/src/feedlist.cpp:295
#30 0x00007f7a87bf64a9 in Akregator::LoadFeedListCommand::Private::handleDocument (this=0x26f4990, doc=...) at ../../../akregator/src/loadfeedlistcommand.cpp:68
#31 0x00007f7a87bf6ec5 in Akregator::LoadFeedListCommand::Private::doLoad (this=0x26f4990) at ../../../akregator/src/loadfeedlistcommand.cpp:173
#32 0x00007f7a87bf7235 in Akregator::LoadFeedListCommand::qt_metacall (this=0x2392340, _c=QMetaObject::InvokeMetaMethod, _id=1073741792, _a=0x7fff0c8399f0) at ./loadfeedlistcommand.moc:72
#33 0x00007f7a95c93682 in QMetaObject::activate (sender=0x23b11d0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x9e) at kernel/qobject.cpp:3112
#34 0x00007f7a95c987ef in QSingleShotTimer::timerEvent (this=0x23b11d0) at kernel/qtimer.cpp:298
#35 0x00007f7a95c8dbf3 in QObject::event (this=0x23b11d0, e=0x3fffffe0) at kernel/qobject.cpp:1074
#36 0x00007f7a950f680d in QApplicationPrivate::notify_helper (this=0x22ea830, receiver=0x23b11d0, e=0x7fff0c83a0b0) at kernel/qapplication.cpp:4056
#37 0x00007f7a950fe86a in QApplication::notify (this=0x7fff0c83a3b0, receiver=0x23b11d0, e=0x7fff0c83a0b0) at kernel/qapplication.cpp:4021
#38 0x00007f7a9688eb2b in KApplication::notify (this=0x7fff0c83a3b0, receiver=0x23b11d0, event=0x7fff0c83a0b0) at ../../kdeui/kernel/kapplication.cpp:302
#39 0x00007f7a95c7e51c in QCoreApplication::notifyInternal (this=0x7fff0c83a3b0, receiver=0x23b11d0, event=0x7fff0c83a0b0) at kernel/qcoreapplication.cpp:610
#40 0x00007f7a95caa826 in QCoreApplication::sendEvent (this=0x22ee6c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#41 QTimerInfoList::activateTimers (this=0x22ee6c0) at kernel/qeventdispatcher_unix.cpp:572
#42 0x00007f7a95ca6c9d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#43 0x00007f7a8fe5b7aa in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#44 0x00007f7a8fe5edf8 in ?? () from /usr/lib/libglib-2.0.so.0
#45 0x00007f7a8fe5efac in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#46 0x00007f7a95ca6bff in QEventDispatcherGlib::processEvents (this=0x22dc190, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#47 0x00007f7a9518d64f in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#48 0x00007f7a95c7cde2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#49 0x00007f7a95c7d1b4 in QEventLoop::exec (this=0x7fff0c83a360, flags=...) at kernel/qeventloop.cpp:201
#50 0x00007f7a95c7f424 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#51 0x0000000000408b97 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../akregator/src/main.cpp:115

Reported using DrKonqi