Version:           2.1 (using KDE KDE 3.5.6)
Compiler:          Ubuntu Fiesty Fawn 7.04 
OS:                Linux

I am using Ubuntu Fiesty Fawn 7.04, with the program Ktorrent acting up.  Sometimes I have random crashings of that program, caused by no apparent reason.  There is a similar bug report on this, however the backtrace is different from mine.  

This is the code it gives: The application Ktorrent crashes and caused the signal 11 (SIGSEGV).  This is the backtrace: (no debugging symbols found)
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread -1235556656 (LWP 5971)]
[New Thread -1249117296 (LWP 5985)]
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[KCrash handler]
#6  0xb7e09bcb in dht::ParseRsp () from /usr/lib/libktorrent-2.1.so
#7  0xb7e09df2 in dht::MakeRPCMsg () from /usr/lib/libktorrent-2.1.so
#8  0xb7dfef51 in dht::RPCServer::readPacket ()
   from /usr/lib/libktorrent-2.1.so
#9  0xb7dff252 in dht::RPCServer::qt_invoke ()
   from /usr/lib/libktorrent-2.1.so
#10 0xb6e4388b in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#11 0xb6e44330 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#12 0xb75cd04c in KNetwork::KClientSocketBase::readyRead ()
   from /usr/lib/libkdecore.so.4
#13 0xb75cd086 in KNetwork::KClientSocketBase::slotReadActivity ()
   from /usr/lib/libkdecore.so.4
#14 0xb75df143 in KNetwork::KClientSocketBase::qt_invoke ()
   from /usr/lib/libkdecore.so.4
#15 0xb75df1e6 in KNetwork::KDatagramSocket::qt_invoke ()
   from /usr/lib/libkdecore.so.4
#16 0xb6e4388b in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#17 0xb6e441a2 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#18 0xb71d0877 in QSocketNotifier::activated () from /usr/lib/libqt-mt.so.3
#19 0xb6e6644a in QSocketNotifier::event () from /usr/lib/libqt-mt.so.3
#20 0xb6ddaa60 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#21 0xb6ddc88f in QApplication::notify () from /usr/lib/libqt-mt.so.3
#22 0xb759ece2 in KApplication::notify () from /usr/lib/libkdecore.so.4
#23 0xb6d6d1e9 in QApplication::sendEvent () from /usr/lib/libqt-mt.so.3
#24 0xb6dcce59 in QEventLoop::activateSocketNotifiers ()
   from /usr/lib/libqt-mt.so.3
#25 0xb6d81d07 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#26 0xb6df5136 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#27 0xb6df4f46 in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#28 0xb6ddc609 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#29 0x080653d6 in ?? ()
#30 0xb65f4ebc in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#31 0x08064ec1 in ?? ()