Application: ktorrent (4.1.3)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed: downloading torrent file with Fire Fox then attempting to open it with k-torrent to begin download but the Window was all greyed out except the title bar. I tried to close but it wouldn't. until the kubuntu pop up window asked if I wished to terminate K-torrent, I selected yes. then tried to re-open it, no luck just a crash window now.  So I rebooted and tried again , stil no luck then uninstalled and rebooted then reinstalled but still no luck.

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fce5111b780 (LWP 3242))]

Thread 6 (Thread 0x7fce3b285700 (LWP 3244)):
#0  __pthread_mutex_lock (mutex=0x7fce2c000a60) at pthread_mutex_lock.c:125
#1  0x00007fce48b84561 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce48b48729 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce48b48f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce48b49124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fce4e926426 in QEventDispatcherGlib::processEvents (this=0x7fce2c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fce4e8f5c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fce4e8f5ed7 in QEventLoop::exec (this=0x7fce3b284e00, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fce4e7f4fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fce4e7f7fcb in QThreadPrivate::start (arg=0x20e3ab0) at thread/qthread_unix.cpp:298
#10 0x00007fce4a39ae9a in start_thread (arg=0x7fce3b285700) at pthread_create.c:308
#11 0x00007fce4cfd34bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fce3ba86700 (LWP 3245)):
#0  0x00007fce4cfc7b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fce50c161aa in net::Poll::poll (this=0x7fce3ba85cd0, timeout=<optimized out>) at ../../src/net/poll.cpp:99
#2  0x00007fce50c7893b in dht::RPCServer::Private::run (this=0x22e05f0) at ../../src/dht/rpcserver.cpp:95
#3  0x00007fce4e7f7fcb in QThreadPrivate::start (arg=0x22e05f0) at thread/qthread_unix.cpp:298
#4  0x00007fce4a39ae9a in start_thread (arg=0x7fce3ba86700) at pthread_create.c:308
#5  0x00007fce4cfd34bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fce39499700 (LWP 3246)):
#0  __pthread_mutex_unlock (mutex=0x20) at pthread_mutex_unlock.c:289
#1  0x00007fce48b84591 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce48b48a2d in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce48b48f96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce48b49124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fce4e926426 in QEventDispatcherGlib::processEvents (this=0x7fce300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fce4e8f5c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fce4e8f5ed7 in QEventLoop::exec (this=0x7fce39498dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fce4e7f4fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fce4e8d59ff in QInotifyFileSystemWatcherEngine::run (this=0x2acc7b0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fce4e7f7fcb in QThreadPrivate::start (arg=0x2acc7b0) at thread/qthread_unix.cpp:298
#11 0x00007fce4a39ae9a in start_thread (arg=0x7fce39499700) at pthread_create.c:308
#12 0x00007fce4cfd34bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fce21fb8700 (LWP 3247)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fce2b613dec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fce2b613f19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fce4a39ae9a in start_thread (arg=0x7fce21fb8700) at pthread_create.c:308
#4  0x00007fce4cfd34bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fce2169f700 (LWP 3248)):
#0  0x00007fce48b84589 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce48b48a2d in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce48b48f96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce48b49124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce4e926426 in QEventDispatcherGlib::processEvents (this=0x7fce1c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fce4e8f5c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fce4e8f5ed7 in QEventLoop::exec (this=0x7fce2169ee00, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fce4e7f4fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fce4e7f7fcb in QThreadPrivate::start (arg=0x2d526f0) at thread/qthread_unix.cpp:298
#9  0x00007fce4a39ae9a in start_thread (arg=0x7fce2169f700) at pthread_create.c:308
#10 0x00007fce4cfd34bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fce5111b780 (LWP 3242)):
[KCrash Handler]
#6  data (this=0x8) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:135
#7  qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at ../../include/QtCore/../../src/corelib/global/qglobal.h:2430
#8  d_func (this=0x0) at qdbusabstractinterface.h:159
#9  QDBusAbstractInterface::callWithArgumentList (this=0x0, mode=QDBus::Block, method=..., args=...) at qdbusabstractinterface.cpp:430
#10 0x00007fce38136100 in Reset (this=0x0) at ../../dnssd/avahi_entrygroup_interface.h:94
#11 serverStateChanged (this=0x2481980, s=<optimized out>) at ../../dnssd/avahi-publicservice.cpp:203
#12 DNSSD::PublicServicePrivate::serverStateChanged (this=0x2481980, s=<optimized out>) at ../../dnssd/avahi-publicservice.cpp:193
#13 0x00007fce38136343 in DNSSD::PublicService::publishAsync (this=<optimized out>) at ../../dnssd/avahi-publicservice.cpp:230
#14 0x00007fce249069ce in kt::TorrentService::start (this=0x2bb9980) at ../../../plugins/zeroconf/torrentservice.cpp:83
#15 0x00007fce50c50a9d in start (this=0x2464c20) at ../../src/torrent/peersourcemanager.cpp:81
#16 bt::PeerSourceManager::start (this=0x2464c20) at ../../src/torrent/peersourcemanager.cpp:73
#17 0x00007fce50c5a09d in bt::TorrentControl::continueStart (this=0x245ccc0) at ../../src/torrent/torrentcontrol.cpp:461
#18 0x00007fce50c5a9cf in bt::TorrentControl::start (this=0x245ccc0) at ../../src/torrent/torrentcontrol.cpp:432
#19 0x00007fce5095de01 in kt::QueueManager::startSafely (this=<optimized out>, tc=0x245ccc0) at ../../libktcore/torrent/queuemanager.cpp:731
#20 0x00007fce5095df49 in startInternal (tc=0x245ccc0, this=0x22d54a0) at ../../libktcore/torrent/queuemanager.cpp:102
#21 kt::QueueManager::startInternal (this=0x22d54a0, tc=0x245ccc0) at ../../libktcore/torrent/queuemanager.cpp:91
#22 0x00007fce5095fe6b in kt::QueueManager::orderQueue (this=0x22d54a0) at ../../libktcore/torrent/queuemanager.cpp:614
#23 0x00000000004330e0 in kt::Core::qt_metacall (this=0x22d52d0, _c=QMetaObject::InvokeMetaMethod, _id=39, _a=0x24a5e30) at ./core.moc:194
#24 0x00007fce4e910446 in QObject::event (this=0x22d52d0, e=<optimized out>) at kernel/qobject.cpp:1195
#25 0x00007fce4dc79894 in notify_helper (e=0x24a5f40, receiver=0x22d52d0, this=0x212c5e0) at kernel/qapplication.cpp:4559
#26 QApplicationPrivate::notify_helper (this=0x212c5e0, receiver=0x22d52d0, e=0x24a5f40) at kernel/qapplication.cpp:4531
#27 0x00007fce4dc7e713 in QApplication::notify (this=0x7fffe32e09f0, receiver=0x22d52d0, e=0x24a5f40) at kernel/qapplication.cpp:4420
#28 0x0000000000439a21 in kt::App::notify (this=<optimized out>, receiver=<optimized out>, event=<optimized out>) at ../../ktorrent/app.cpp:99
#29 0x00007fce4e8f6e9c in QCoreApplication::notifyInternal (this=0x7fffe32e09f0, receiver=0x22d52d0, event=0x24a5f40) at kernel/qcoreapplication.cpp:876
#30 0x00007fce4e8fac6a in sendEvent (event=0x24a5f40, receiver=0x22d52d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x2095670) at kernel/qcoreapplication.cpp:1500
#32 0x00007fce4e925f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#33 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#34 0x00007fce48b48c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fce48b49060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fce48b49124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fce4e9263bf in QEventDispatcherGlib::processEvents (this=0x2096b30, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#38 0x00007fce4dd21d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007fce4e8f5c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007fce4e8f5ed7 in QEventLoop::exec (this=0x7fffe32e0980, flags=...) at kernel/qeventloop.cpp:204
#41 0x00007fce4e8faf67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#42 0x0000000000428452 in main (argc=5, argv=0x7fffe32e1868) at ../../ktorrent/main.cpp:177

Possible duplicates by query: bug 299520, bug 297416, bug 296028, bug 291606.

Reported using DrKonqi