Application: akregator (4.7.3)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.8.0
Operating System: Linux 3.1.1-2.fc16.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
Akregator was runing with one tab open to browsing 
http://www.mysqlperformanceblog.com/2011/11/29/percona-replication-manager-a-solution-for-mysql-high-availability-with-replication-using-pacemaker

I went back to the feeds and opened in in an external browser ( firefox 8.0), five seconds later, akregator crashed.  Maybe related to kwebkit? Don't know really. It crashed in a simular manner yesterday, but the debug symbols couldn't be installed correctly from the repos for some unkown reason.

-- Backtrace:
Application: Akregator (akregator), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f9cdd8f4840 (LWP 23348))]

Thread 12 (Thread 0x7f9cb0c88700 (LWP 30368)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x00007f9cb5df03cc in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f9cb67e9f80) at ../../../Source/JavaScriptCore/wtf/FastMalloc.cpp:2495
#2  0x00007f9cb5df04f9 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../../../Source/JavaScriptCore/wtf/FastMalloc.cpp:1618
#3  0x00007f9cd7288d90 in start_thread (arg=0x7f9cb0c88700) at pthread_create.c:309
#4  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 11 (Thread 0x7f9ca8db9700 (LWP 30369)):
#0  0x00007f9ccfa72004 in g_main_context_prepare (context=0x7f9cac001cc0, priority=0x7f9ca8db8c18) at gmain.c:2744
#1  0x00007f9ccfa72e1d in g_main_context_iterate (context=0x7f9cac001cc0, block=1, dispatch=1, self=<optimized out>) at gmain.c:3053
#2  0x00007f9ccfa7344c in g_main_context_iteration (context=0x7f9cac001cc0, may_block=1) at gmain.c:3136
#3  0x00007f9cd7643896 in QEventDispatcherGlib::processEvents (this=0x7f9cac003560, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f9cd7613c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f9cd7613ed7 in QEventLoop::exec (this=0x7f9ca8db8d40, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f9cd7515ad7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f9cd7518b1b in QThreadPrivate::start (arg=0x19d6470) at thread/qthread_unix.cpp:298
#8  0x00007f9cd7288d90 in start_thread (arg=0x7f9ca8db9700) at pthread_create.c:309
#9  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 10 (Thread 0x7f9c56383700 (LWP 30410)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x00007f9c563a726e in queue_processor(void*) () from /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64/IcedTeaPlugin.so
#2  0x00007f9cd7288d90 in start_thread (arg=0x7f9c56383700) at pthread_create.c:309
#3  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 9 (Thread 0x7f9c55b82700 (LWP 30411)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x00007f9c563a726e in queue_processor(void*) () from /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64/IcedTeaPlugin.so
#2  0x00007f9cd7288d90 in start_thread (arg=0x7f9c55b82700) at pthread_create.c:309
#3  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 8 (Thread 0x7f9c55381700 (LWP 30412)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x00007f9c563a726e in queue_processor(void*) () from /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64/IcedTeaPlugin.so
#2  0x00007f9cd7288d90 in start_thread (arg=0x7f9c55381700) at pthread_create.c:309
#3  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 7 (Thread 0x7f9c50066700 (LWP 30467)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x00007f9c512962ac in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#2  0x00007f9c51333720 in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#3  0x00007f9c512963dc in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#4  0x00007f9c5129683e in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#5  0x00007f9cd7288d90 in start_thread (arg=0x7f9c50066700) at pthread_create.c:309
#6  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 6 (Thread 0x7f9c4f865700 (LWP 30468)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x00007f9c512962ac in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#2  0x00007f9c51333720 in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#3  0x00007f9c512963dc in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#4  0x00007f9c5129683e in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#5  0x00007f9cd7288d90 in start_thread (arg=0x7f9c4f865700) at pthread_create.c:309
#6  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 5 (Thread 0x7f9c43af2700 (LWP 32054)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x00007f9c51296287 in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#2  0x00007f9c512b20bd in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#3  0x00007f9c512963dc in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#4  0x00007f9c5129683e in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#5  0x00007f9cd7288d90 in start_thread (arg=0x7f9c43af2700) at pthread_create.c:309
#6  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 4 (Thread 0x7f9c4cb4c700 (LWP 32055)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x00007f9c51296287 in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#2  0x00007f9c512b20bd in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#3  0x00007f9c512963dc in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#4  0x00007f9c5129683e in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#5  0x00007f9cd7288d90 in start_thread (arg=0x7f9c4cb4c700) at pthread_create.c:309
#6  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 3 (Thread 0x7f9c4eaf6700 (LWP 32056)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x00007f9c51296287 in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#2  0x00007f9c512b20bd in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#3  0x00007f9c512963dc in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#4  0x00007f9c5129683e in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#5  0x00007f9cd7288d90 in start_thread (arg=0x7f9c4eaf6700) at pthread_create.c:309
#6  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7f9c4d74c700 (LWP 32057)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x00007f9c51296287 in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#2  0x00007f9c512b20bd in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#3  0x00007f9c512963dc in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#4  0x00007f9c5129683e in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#5  0x00007f9cd7288d90 in start_thread (arg=0x7f9c4d74c700) at pthread_create.c:309
#6  0x00007f9cd62b1d0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f9cdd8f4840 (LWP 23348)):
[KCrash Handler]
#6  0x00007f9cd7628052 in QObject::disconnect (sender=0x35a69f0, signal=0x0, receiver=0x3073320, method=0x36e5249 "receiveMetaData()") at kernel/qobject.cpp:2890
#7  0x00007f9cb5a89cfe in disconnect (member=0x7f9cb60c8e8f "1receiveMetaData()", receiver=0x3073320, this=<optimized out>) at /usr/include/QtCore/qobject.h:252
#8  WebCore::QNetworkReplyWrapper::resetConnections (this=0x3073320) at ../../../Source/WebCore/platform/network/qt/QNetworkReplyHandler.cpp:254
#9  0x00007f9cb5a89d5f in WebCore::QNetworkReplyWrapper::release (this=0x3073320) at ../../../Source/WebCore/platform/network/qt/QNetworkReplyHandler.cpp:235
#10 0x00007f9cb5a89ec8 in WebCore::QNetworkReplyHandler::release (this=0x2000b60) at ../../../Source/WebCore/platform/network/qt/QNetworkReplyHandler.cpp:425
#11 0x00007f9cb5a89f0e in WebCore::QNetworkReplyHandler::abort (this=0x2000b60) at ../../../Source/WebCore/platform/network/qt/QNetworkReplyHandler.cpp:413
#12 0x00007f9cb5a86fc9 in WebCore::ResourceHandle::cancel (this=0x7f9c490f9498) at ../../../Source/WebCore/platform/network/qt/ResourceHandleQt.cpp:107
#13 0x00007f9cb58637a0 in (anonymous namespace)::PingLoader::~PingLoader (this=0x7f9c49414b90, __in_chrg=<optimized out>) at ../../../Source/WebCore/loader/PingLoader.cpp:130
#14 0x00007f9cb5863849 in (anonymous namespace)::PingLoader::~PingLoader (this=0x7f9c49414b90, __in_chrg=<optimized out>) at ../../../Source/WebCore/loader/PingLoader.cpp:131
#15 0x00007f9cb595ab22 in WebCore::ThreadTimers::sharedTimerFiredInternal (this=0x7f9ca8e037a8) at ../../../Source/WebCore/platform/ThreadTimers.cpp:112
#16 0x00007f9cd762d719 in QObject::event (this=0x1b422b0, e=<optimized out>) at kernel/qobject.cpp:1156
#17 0x00007f9cd826c6f4 in notify_helper (e=0x7fffdd146d70, receiver=0x1b422b0, this=0x748cf0) at kernel/qapplication.cpp:4518
#18 QApplicationPrivate::notify_helper (this=0x748cf0, receiver=0x1b422b0, e=0x7fffdd146d70) at kernel/qapplication.cpp:4490
#19 0x00007f9cd8271573 in QApplication::notify (this=0x7fffdd147060, receiver=0x1b422b0, e=0x7fffdd146d70) at kernel/qapplication.cpp:4379
#20 0x00007f9cd8fab396 in KApplication::notify (this=0x7fffdd147060, receiver=0x1b422b0, event=0x7fffdd146d70) at /usr/src/debug/kdelibs-4.7.3/kdeui/kernel/kapplication.cpp:311
#21 0x00007f9cd7614b4c in QCoreApplication::notifyInternal (this=0x7fffdd147060, receiver=0x1b422b0, event=0x7fffdd146d70) at kernel/qcoreapplication.cpp:876
#22 0x00007f9cd7645622 in sendEvent (event=0x7fffdd146d70, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#23 QTimerInfoList::activateTimers (this=0x750a30) at kernel/qeventdispatcher_unix.cpp:611
#24 0x00007f9cd7642ffd in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#25 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#26 0x00007f9cd7643021 in idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:233
#27 0x00007f9ccfa72a7d in g_main_dispatch (context=0x74fce0) at gmain.c:2425
#28 g_main_context_dispatch (context=0x74fce0) at gmain.c:2995
#29 0x00007f9ccfa73278 in g_main_context_iterate (context=0x74fce0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3073
#30 0x00007f9ccfa7344c in g_main_context_iteration (context=0x74fce0, may_block=1) at gmain.c:3136
#31 0x00007f9cd764382f in QEventDispatcherGlib::processEvents (this=0x719530, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#32 0x00007f9cd830f43e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#33 0x00007f9cd7613c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#34 0x00007f9cd7613ed7 in QEventLoop::exec (this=0x7fffdd147010, flags=...) at kernel/qeventloop.cpp:204
#35 0x00007f9cd76188d5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#36 0x0000000000407eec in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kdepim-4.7.3/akregator/src/main.cpp:103

Reported using DrKonqi