Application: ktorrent (4.1.3)
KDE Platform Version: 4.8.5 (4.8.5) (Compiled from sources)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-37-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

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

installed ralink ra3290 driver as per: http://rricketts.com/installing-ralink-rt3290-wireless-drivers-in-ubuntu-12-04/

starting ktorrent...

The crash can be reproduced every time.

-- 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 0x7faa76aa8780 (LWP 20906))]

Thread 5 (Thread 0x7faa608e8700 (LWP 20908)):
#0  0x00007faa7294f303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faa765aa1aa in net::Poll::poll (this=0x7faa608e7cd0, timeout=<optimized out>) at ../../src/net/poll.cpp:99
#2  0x00007faa7660c93b in dht::RPCServer::Private::run (this=0x2260210) at ../../src/dht/rpcserver.cpp:95
#3  0x00007faa74181fcb in QThreadPrivate::start (arg=0x2260210) at thread/qthread_unix.cpp:298
#4  0x00007faa6fd22e9a in start_thread (arg=0x7faa608e8700) at pthread_create.c:308
#5  0x00007faa7295acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7faa540b7700 (LWP 20909)):
#0  0x00007faa6e50c325 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007faa6e50c5c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa6e4d083b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa6e4d0f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faa6e4d1164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faa742b0426 in QEventDispatcherGlib::processEvents (this=0x7faa4c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007faa7427fc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007faa7427fed7 in QEventLoop::exec (this=0x7faa540b6dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007faa7417efa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007faa7425f9ff in QInotifyFileSystemWatcherEngine::run (this=0xcfc7f30) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007faa74181fcb in QThreadPrivate::start (arg=0xcfc7f30) at thread/qthread_unix.cpp:298
#11 0x00007faa6fd22e9a in start_thread (arg=0x7faa540b7700) at pthread_create.c:308
#12 0x00007faa7295acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7faa480eb700 (LWP 20910)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faa5257adec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007faa5257af19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007faa6fd22e9a in start_thread (arg=0x7faa480eb700) at pthread_create.c:308
#4  0x00007faa7295acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7faa477ea700 (LWP 20911)):
#0  0x00007faa7294d8bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007faa6e50b8cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa6e4d0ba4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa6e4d0fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faa6e4d1164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faa742b0426 in QEventDispatcherGlib::processEvents (this=0x7faa400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007faa7427fc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007faa7427fed7 in QEventLoop::exec (this=0x7faa477e9e00, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007faa7417efa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007faa74181fcb in QThreadPrivate::start (arg=0xd2402a0) at thread/qthread_unix.cpp:298
#10 0x00007faa6fd22e9a in start_thread (arg=0x7faa477ea700) at pthread_create.c:308
#11 0x00007faa7295acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7faa76aa8780 (LWP 20906)):
[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 0x00007faa5054d100 in Reset (this=0x0) at ../../dnssd/avahi_entrygroup_interface.h:94
#11 serverStateChanged (this=0xd39c710, s=<optimized out>) at ../../dnssd/avahi-publicservice.cpp:203
#12 DNSSD::PublicServicePrivate::serverStateChanged (this=0xd39c710, s=<optimized out>) at ../../dnssd/avahi-publicservice.cpp:193
#13 0x00007faa5054d343 in DNSSD::PublicService::publishAsync (this=<optimized out>) at ../../dnssd/avahi-publicservice.cpp:230
#14 0x00007faa49c669ce in kt::TorrentService::start (this=0xd019590) at ../../../plugins/zeroconf/torrentservice.cpp:83
#15 0x00007faa765e4a9d in start (this=0x665d330) at ../../src/torrent/peersourcemanager.cpp:81
#16 bt::PeerSourceManager::start (this=0x665d330) at ../../src/torrent/peersourcemanager.cpp:73
#17 0x00007faa765ee09d in bt::TorrentControl::continueStart (this=0x6649dd0) at ../../src/torrent/torrentcontrol.cpp:461
#18 0x00007faa765ee9cf in bt::TorrentControl::start (this=0x6649dd0) at ../../src/torrent/torrentcontrol.cpp:432
#19 0x00007faa762f1e01 in kt::QueueManager::startSafely (this=<optimized out>, tc=0x6649dd0) at ../../libktcore/torrent/queuemanager.cpp:731
#20 0x00007faa762f453b in kt::QueueManager::start (this=0x224f080, todo=...) at ../../libktcore/torrent/queuemanager.cpp:353
#21 0x00007faa762f4634 in kt::QueueManager::startAutoStartTorrents (this=0x224f080) at ../../libktcore/torrent/queuemanager.cpp:411
#22 0x00000000004330e0 in kt::Core::qt_metacall (this=0x224f6f0, _c=QMetaObject::InvokeMetaMethod, _id=39, _a=0xc7f2b00) at ./core.moc:194
#23 0x00007faa7429a446 in QObject::event (this=0x224f6f0, e=<optimized out>) at kernel/qobject.cpp:1195
#24 0x00007faa73603894 in notify_helper (e=0xc7f2e70, receiver=0x224f6f0, this=0x20f8910) at kernel/qapplication.cpp:4559
#25 QApplicationPrivate::notify_helper (this=0x20f8910, receiver=0x224f6f0, e=0xc7f2e70) at kernel/qapplication.cpp:4531
#26 0x00007faa73608713 in QApplication::notify (this=0x7fff942e2350, receiver=0x224f6f0, e=0xc7f2e70) at kernel/qapplication.cpp:4420
#27 0x0000000000439a21 in kt::App::notify (this=<optimized out>, receiver=<optimized out>, event=<optimized out>) at ../../ktorrent/app.cpp:99
#28 0x00007faa74280e9c in QCoreApplication::notifyInternal (this=0x7fff942e2350, receiver=0x224f6f0, event=0xc7f2e70) at kernel/qcoreapplication.cpp:876
#29 0x00007faa74284c6a in sendEvent (event=0xc7f2e70, receiver=0x224f6f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x2073670) at kernel/qcoreapplication.cpp:1500
#31 0x00007faa742aff93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#32 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#33 0x00007faa6e4d0d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007faa6e4d10a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007faa6e4d1164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007faa742b03bf in QEventDispatcherGlib::processEvents (this=0x2074b30, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#37 0x00007faa736abd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007faa7427fc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#39 0x00007faa7427fed7 in QEventLoop::exec (this=0x7fff942e22e0, flags=...) at kernel/qeventloop.cpp:204
#40 0x00007faa74284f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#41 0x0000000000428452 in main (argc=5, argv=0x7fff942e31c8) at ../../ktorrent/main.cpp:177

Possible duplicates by query: bug 308402, bug 306876, bug 305968, bug 305585, bug 303683.

Reported using DrKonqi