Bug 269657

Application: ktorrent (4.0.3)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-28-generic i686
Distribution: Ubuntu 10.10

-- Information about the crash:
Machine left on overnight downloading and ktorrent crashed sometime during the night with no other access or use of the machine going on.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
[Current thread is 1 (Thread 0xb785d710 (LWP 1610))]

Thread 7 (Thread 0xb7624b70 (LWP 1635)):
#0  0x00845416 in __kernel_vsyscall ()
#1  0x07b64df6 in poll () from /lib/libc.so.6
#2  0x02da4a1b in g_poll () from /lib/libglib-2.0.so.0
#3  0x02d9743c in ?? () from /lib/libglib-2.0.so.0
#4  0x02d97ba7 in g_main_loop_run () from /lib/libglib-2.0.so.0
#5  0x07e9f9c4 in ?? () from /usr/lib/libgio-2.0.so.0
#6  0x02dbe48f in ?? () from /lib/libglib-2.0.so.0
#7  0x0082ecc9 in start_thread () from /lib/libpthread.so.0
#8  0x07b7369e in clone () from /lib/libc.so.6

Thread 6 (Thread 0xb46b8b70 (LWP 1682)):
#0  0x00845416 in __kernel_vsyscall ()
#1  0x008334dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0267aef2 in QMutexPrivate::wait (this=0x99e9980, timeout=-1) at thread/qmutex_unix.cpp:84
#3  0x026765ca in QMutex::lock (this=0x97edbcc) at thread/qmutex.cpp:167
#4  0x00206e1b in QMutexLocker (this=0x97edb70) at /usr/include/qt4/QtCore/qmutex.h:102
#5  utp::UTPServer::wakeUpPollPipes (this=0x97edb70) at ../../src/utp/utpserver.cpp:510
#6  0x00206f60 in utp::UTPServer::timerEvent (this=0xfffffe00, event=0x450e3) at ../../src/utp/utpserver.cpp:502
#7  0x02790504 in QObject::event (this=0x97edb70, e=0x450e3) at kernel/qobject.cpp:1183
#8  0x01370fdc in QApplicationPrivate::notify_helper (this=0x97ed1f8, receiver=0x97edb70, e=0xb46b8010) at kernel/qapplication.cpp:4396
#9  0x0137704e in QApplication::notify (this=0xbf863be0, receiver=0x97edb70, e=0xb46b8010) at kernel/qapplication.cpp:3798
#10 0x080783dc in kt::App::notify (this=0x80, receiver=0x450e3, event=0xfffffe00) at ../../ktorrent/app.cpp:97
#11 0x0277db3b in QCoreApplication::notifyInternal (this=0xbf863be0, receiver=0x97edb70, event=0xb46b8010) at kernel/qcoreapplication.cpp:732
#12 0x027afad6 in sendEvent (this=0xb6d04dbc) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#13 QTimerInfoList::activateTimers (this=0xb6d04dbc) at kernel/qeventdispatcher_unix.cpp:602
#14 0x027ac8a7 in timerSourceDispatch (source=0xb6d05a80) at kernel/qeventdispatcher_glib.cpp:184
#15 idleTimerSourceDispatch (source=0xb6d05a80) at kernel/qeventdispatcher_glib.cpp:231
#16 0x02d93855 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#17 0x02d97668 in ?? () from /lib/libglib-2.0.so.0
#18 0x02d97848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#19 0x027ac59f in QEventDispatcherGlib::processEvents (this=0x99edb18, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#20 0x0277c609 in QEventLoop::processEvents (this=0xb46b8290, flags=) at kernel/qeventloop.cpp:149
#21 0x0277ca8a in QEventLoop::exec (this=0xb46b8290, flags=...) at kernel/qeventloop.cpp:201
#22 0x02678b7e in QThread::exec (this=0x99ee200) at thread/qthread.cpp:490
#23 0x0020c39e in utp::UTPServerThread::run (this=0x99ee200) at ../../src/utp/utpserverthread.cpp:44
#24 0x0267bdf9 in QThreadPrivate::start (arg=0x99ee200) at thread/qthread_unix.cpp:266
#25 0x0082ecc9 in start_thread () from /lib/libpthread.so.0
#26 0x07b7369e in clone () from /lib/libc.so.6

Thread 5 (Thread 0xb3eb7b70 (LWP 1683)):
#0  0x00845416 in __kernel_vsyscall ()
#1  0x07b6c371 in select () from /lib/libc.so.6
#2  0x001ce8db in dht::RPCServerThread::run (this=0x99f34a8) at ../../src/dht/rpcserver.cpp:107
#3  0x0267bdf9 in QThreadPrivate::start (arg=0x99f34a8) at thread/qthread_unix.cpp:266
#4  0x0082ecc9 in start_thread () from /lib/libpthread.so.0
#5  0x07b7369e in clone () from /lib/libc.so.6

Thread 4 (Thread 0xb036fb70 (LWP 1721)):
#0  0x07b11965 in ?? () from /lib/libc.so.6
#1  0x07b13f33 in malloc () from /lib/libc.so.6
#2  0x0267611d in qMalloc (size=8) at global/qmalloc.cpp:55
#3  0x0269a9c3 in QHashData::allocateNode (this=0xb196fcc8, nodeAlign=4) at tools/qhash.cpp:175
#4  0x0021237b in createNode (this=0xb0c374f8, p=0x97c9980, conn_id=23752, self=...) at /usr/include/qt4/QtCore/qhash.h:541
#5  insert (this=0xb0c374f8, p=0x97c9980, conn_id=23752, self=...) at /usr/include/qt4/QtCore/qhash.h:760
#6  insert (this=0xb0c374f8, p=0x97c9980, conn_id=23752, self=...) at /usr/include/qt4/QtCore/qset.h:176
#7  utp::PollPipe::prepare (this=0xb0c374f8, p=0x97c9980, conn_id=23752, self=...) at ../../src/utp/pollpipe.cpp:41
#8  0x00208944 in utp::UTPServer::preparePolling (this=0x97edb70, p=0x97c9980, mode=net::Poll::INPUT, conn=0x9ebfd60) at ../../src/utp/utpserver.cpp:539
#9  0x00210ff9 in utp::UTPSocket::prepare (this=0x9dc6900, p=0x97c9980, mode=net::Poll::INPUT) at ../../src/utp/utpsocket.cpp:199
#10 0x001614a0 in net::DownloadThread::waitForSocketReady (this=0x97c9978) at ../../src/net/downloadthread.cpp:123
#11 0x001615af in net::DownloadThread::update (this=0x97c9978) at ../../src/net/downloadthread.cpp:48
#12 0x00162178 in net::NetworkThread::run (this=0x97c9978) at ../../src/net/networkthread.cpp:48
#13 0x0267bdf9 in QThreadPrivate::start (arg=0x97c9978) at thread/qthread_unix.cpp:266
#14 0x0082ecc9 in start_thread () from /lib/libpthread.so.0
#15 0x07b7369e in clone () from /lib/libc.so.6

Thread 3 (Thread 0xafb6eb70 (LWP 1722)):
#0  0x00845416 in __kernel_vsyscall ()
#1  0x008334dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0267aef2 in QMutexPrivate::wait (this=0x97c9910, timeout=-1) at thread/qmutex_unix.cpp:84
#3  0x026765ca in QMutex::lock (this=0x8116894) at thread/qmutex.cpp:167
#4  0x0015f890 in net::SocketMonitor::lock (this=0x8116890) at ../../src/net/socketmonitor.cpp:82
#5  0x00160882 in net::UploadThread::waitForSocketsReady (this=0x97c9d80) at ../../src/net/uploadthread.cpp:112
#6  0x00160aff in net::UploadThread::update (this=0x97c9d80) at ../../src/net/uploadthread.cpp:45
#7  0x00162178 in net::NetworkThread::run (this=0x97c9d80) at ../../src/net/networkthread.cpp:48
#8  0x0267bdf9 in QThreadPrivate::start (arg=0x97c9d80) at thread/qthread_unix.cpp:266
#9  0x0082ecc9 in start_thread () from /lib/libpthread.so.0
#10 0x07b7369e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xaf36db70 (LWP 1723)):
#0  0x00845416 in __kernel_vsyscall ()
#1  0x008334dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0267c9c7 in wait (this=0xa80e8a4, mutex=0xa80e8a0, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#3  QWaitCondition::wait (this=0xa80e8a4, mutex=0xa80e8a0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#4  0x001658f2 in net::ReverseResolverThread::run (this=0xa80e898) at ../../src/net/reverseresolver.cpp:123
#5  0x0267bdf9 in QThreadPrivate::start (arg=0xa80e898) at thread/qthread_unix.cpp:266
#6  0x0082ecc9 in start_thread () from /lib/libpthread.so.0
#7  0x07b7369e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb785d710 (LWP 1610)):
[KCrash Handler]
#7  0x037b0538 in KNetwork::KSocketAddress::operator== (this=0xb1071c2c, other=...) at ../../kdecore/network/k3socketaddress.cpp:510
#8  0x001d00c2 in dht::KBucket::onTimeout (this=0xae7fce58, addr=...) at ../../src/dht/kbucket.cpp:278
#9  0x001d1f1f in dht::Node::onTimeout (this=0x99f3138, msg=0xb0cf4db8) at ../../src/dht/node.cpp:176
#10 0x001bcad7 in dht::DHT::timeout (this=0x99eb968, r=0xb0cf4db8) at ../../src/dht/dht.cpp:351
#11 0x001ccd67 in dht::RPCServer::timedOut (this=0x99f3028, mtid=6 '\006') at ../../src/dht/rpcserver.cpp:299
#12 0x001d32ec in dht::RPCCall::onTimeout (this=0xb1ae6810) at ../../src/dht/rpccall.cpp:57
#13 0x001d3393 in dht::RPCCall::qt_metacall (this=0xb1ae6810, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbf86338c) at ./rpccall.moc:143
#14 0x027838ca in QMetaObject::metacall (object=0xb1ae6810, cl=2145560878, idx=6, argv=0xbf86338c) at kernel/qmetaobject.cpp:237
#15 0x027966ad in QMetaObject::activate (sender=0xb1ae681c, m=0x28b05a4, local_signal_index=0, argv=0x10) at kernel/qobject.cpp:3280
#16 0x027e81e7 in QTimer::timeout (this=0xb1ae681c) at .moc/release-shared/moc_qtimer.cpp:134
#17 0x0279c1ce in QTimer::timerEvent (this=0xb1ae681c, e=0xbf863890) at kernel/qtimer.cpp:271
#18 0x02790504 in QObject::event (this=0xb1ae681c, e=0xb1029970) at kernel/qobject.cpp:1183
#19 0x01370fdc in QApplicationPrivate::notify_helper (this=0x97ed1f8, receiver=0xb1ae681c, e=0xbf863890) at kernel/qapplication.cpp:4396
#20 0x0137704e in QApplication::notify (this=0xbf863be0, receiver=0xb1ae681c, e=0xbf863890) at kernel/qapplication.cpp:3798
#21 0x080783dc in kt::App::notify (this=0x7fe2a92e, receiver=0xb1029970, event=0x10) at ../../ktorrent/app.cpp:97
#22 0x0277db3b in QCoreApplication::notifyInternal (this=0xbf863be0, receiver=0xb1ae681c, event=0xbf863890) at kernel/qcoreapplication.cpp:732
#23 0x027afad6 in sendEvent (this=0x97f0634) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#24 QTimerInfoList::activateTimers (this=0x97f0634) at kernel/qeventdispatcher_unix.cpp:602
#25 0x027ac8a7 in timerSourceDispatch (source=0x97f0668) at kernel/qeventdispatcher_glib.cpp:184
#26 idleTimerSourceDispatch (source=0x97f0668) at kernel/qeventdispatcher_glib.cpp:231
#27 0x02d93855 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#28 0x02d97668 in ?? () from /lib/libglib-2.0.so.0
#29 0x02d97848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#30 0x027ac565 in QEventDispatcherGlib::processEvents (this=0x97c86d8, flags=...) at kernel/qeventdispatcher_glib.cpp:415
#31 0x01432be5 in QGuiEventDispatcherGlib::processEvents (this=0x97c86d8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#32 0x0277c609 in QEventLoop::processEvents (this=0xbf863b54, flags=) at kernel/qeventloop.cpp:149
#33 0x0277ca8a in QEventLoop::exec (this=0xbf863b54, flags=...) at kernel/qeventloop.cpp:201
#34 0x0278100f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#35 0x0136fe07 in QApplication::exec () at kernel/qapplication.cpp:3672
#36 0x08066e91 in main (argc=1, argv=0xbf863fe4) at ../../ktorrent/main.cpp:176

Reported using DrKonqi