Application that crashed: ktorrent
Version of the application: 3.3.1
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.30.10-105.2.4.fc11.i686.PAE i686
Distribution: "Fedora release 11 (Leonidas)"

What I was doing when the application crashed:
1. It's been almost one week since i used ktorrent. I think the last time i used ktorrent was in the 2nd week of jan, 2010. i can't isolate the exact date.
2. when i started it, today it doesn't open, crashes and the crash reporting assistant appears.

 -- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
[KCrash Handler]
#6  QMutex::lock (this=0x1c) at thread/qmutex.cpp:152
#7  0x06b638f8 in ?? () from /usr/lib/libbtcore.so.12
#8  0x06b63dc1 in bt::PreallocationJob::finished() () from /usr/lib/libbtcore.so.12
#9  0x06ad3e31 in bt::PreallocationJob::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libbtcore.so.12
#10 0x06ff39eb in QMetaCallEvent::placeMetaCall (this=0xb5501550, object=0x92ef2a0) at kernel/qobject.cpp:477
#11 0x06ff5136 in QObject::event (this=0x92ef2a0, e=0xb5501550) at kernel/qobject.cpp:1110
#12 0x075d88b4 in QApplicationPrivate::notify_helper (this=0x8d752d0, receiver=0x92ef2a0, e=0xb5501550) at kernel/qapplication.cpp:4065
#13 0x075e0029 in QApplication::notify (this=0xbfa354d4, receiver=0x92ef2a0, e=0xb5501550) at kernel/qapplication.cpp:3605
#14 0x05f9881a in KApplication::notify (this=0xbfa354d4, receiver=0x92ef2a0, event=0xb5501550) at /usr/src/debug/kdelibs-4.3.4/kdeui/kernel/kapplication.cpp:302
#15 0x06fe50ab in QCoreApplication::notifyInternal (this=0xbfa354d4, receiver=0x92ef2a0, event=0xb5501550) at kernel/qcoreapplication.cpp:610
#16 0x06fe5c92 in QCoreApplication::sendEvent (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.h:213
#17 QCoreApplicationPrivate::sendPostedEvents (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.cpp:1247
#18 0x06fe5e4d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#19 0x0700ff4f in QCoreApplication::sendPostedEvents () at kernel/qcoreapplication.h:218
#20 postEventSourceDispatch () at kernel/qeventdispatcher_glib.cpp:210
#21 0x00cd5308 in g_main_dispatch (context=<value optimized out>) at gmain.c:1824
#22 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2377
#23 0x00cd89e0 in g_main_context_iterate (context=0x8d77490, block=<value optimized out>, dispatch=1, self=0x8d7ae20) at gmain.c:2455
#24 0x00cd8b13 in IA__g_main_context_iteration (context=0x8d77490, may_block=1) at gmain.c:2518
#25 0x0700fb7c in QEventDispatcherGlib::processEvents (this=0x8d49bb8, flags={i = 36}) at kernel/qeventdispatcher_glib.cpp:327
#26 0x07677c45 in QGuiEventDispatcherGlib::processEvents (this=0x8d49bb8, flags={i = 36}) at kernel/qguieventdispatcher_glib.cpp:202
#27 0x06fe3639 in QEventLoop::processEvents (this=0xbfa35444, flags={i = 36}) at kernel/qeventloop.cpp:149
#28 0x06fe3a8a in QEventLoop::exec (this=0xbfa35444, flags={i = 0}) at kernel/qeventloop.cpp:201
#29 0x06fe5f0f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#30 0x075d8737 in QApplication::exec () at kernel/qapplication.cpp:3525
#31 0x08065421 in _start ()

This bug may be a duplicate of or related to bug 221333

Reported using DrKonqi