Bug 243901

Application: ktorrent (3.3.4)
KDE Platform Version: 4.4.2 (KDE 4.4.2) (Compiled from sources)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-23-generic i686
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
I use Ktorrent for DL/UL HD torrents in Gnome environment. In version 9.04 Ktorrent was absolute stabillity. BUT, in 10.04 Ubuntu with Gnome environment, I see periodically crash Ktorrent core.

My configuration:
Home Lan based on Linksys WRT54-GL router, Dune mediatank (disk-share is work stable), notebook Toshiba Tecra A-4 (Ubuntu 10.04) with usb plugged-in external HDD Seagate FreeAgent 500 Mb.

 -- Backtrace:
Application: KTorrent (ktorrent), signal: Bus error
[Current thread is 1 (Thread 0xb78ab710 (LWP 6771))]

Thread 5 (Thread 0xb58ffb70 (LWP 6773)):
#0  0x0055e422 in __kernel_vsyscall ()
#1  0x07afc971 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0x009ceaac in dht::RPCServerThread::run (this=0x8e33d08) at ../../libbtcore/dht/rpcserver.cpp:107
#3  0x00f6932e in QThreadPrivate::start (arg=0x8e33d08) at thread/qthread_unix.cpp:248
#4  0x00a6396e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0x07b03a4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 4 (Thread 0xb0ddbb70 (LWP 6788)):
#0  0x0055e422 in __kernel_vsyscall ()
#1  0x07af5b86 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0x0096b982 in net::DownloadThread::waitForSocketReady (this=0x8c6c560) at ../../libbtcore/net/downloadthread.cpp:188
#3  0x0096ba4f in net::DownloadThread::update (this=0x8c6c560) at ../../libbtcore/net/downloadthread.cpp:53
#4  0x0096c6b8 in net::NetworkThread::run (this=0x8c6c560) at ../../libbtcore/net/networkthread.cpp:48
#5  0x00f6932e in QThreadPrivate::start (arg=0x8c6c560) at thread/qthread_unix.cpp:248
#6  0x00a6396e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0x07b03a4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xb05dab70 (LWP 6789)):
#0  0x0055e422 in __kernel_vsyscall ()
#1  0x00a68015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x00f6a287 in QWaitConditionPrivate::wait (this=0x8c6c8f8, mutex=0x8c6c8fc, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x8c6c8f8, mutex=0x8c6c8fc, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0x0096b3a9 in net::UploadThread::update (this=0x8c6c8c0) at ../../libbtcore/net/uploadthread.cpp:73
#5  0x0096c6b8 in net::NetworkThread::run (this=0x8c6c8c0) at ../../libbtcore/net/networkthread.cpp:48
#6  0x00f6932e in QThreadPrivate::start (arg=0x8c6c8c0) at thread/qthread_unix.cpp:248
#7  0x00a6396e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x07b03a4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xafdd9b70 (LWP 6790)):
#0  0x0055e422 in __kernel_vsyscall ()
#1  0x07af3e2b in read () from /lib/tls/i686/cmov/libc.so.6
#2  0x07a9d42b in _IO_file_underflow () from /lib/tls/i686/cmov/libc.so.6
#3  0x07a9eccb in _IO_default_uflow () from /lib/tls/i686/cmov/libc.so.6
#4  0x07aa00f8 in __uflow () from /lib/tls/i686/cmov/libc.so.6
#5  0x07a9328c in _IO_getline_info () from /lib/tls/i686/cmov/libc.so.6
#6  0x07a931d1 in _IO_getline () from /lib/tls/i686/cmov/libc.so.6
#7  0x07a9221a in fgets () from /lib/tls/i686/cmov/libc.so.6
#8  0x015dacd4 in ?? () from /lib/libnss_mdns4.so.2
#9  0x015db177 in _nss_mdns4_gethostbyaddr_r () from /lib/libnss_mdns4.so.2
#10 0x07b1a36b in gethostbyaddr_r () from /lib/tls/i686/cmov/libc.so.6
#11 0x07b1f5db in getnameinfo () from /lib/tls/i686/cmov/libc.so.6
#12 0x0096f92b in net::ReverseResolver::resolve (this=0x9103490, addr=...) at ../../libbtcore/net/reverseresolver.cpp:64
#13 0x0096f9c3 in net::ReverseResolver::run (this=0x9103490) at ../../libbtcore/net/reverseresolver.cpp:73
#14 0x0096fac7 in net::ReverseResolverThread::run (this=0x9376e80) at ../../libbtcore/net/reverseresolver.cpp:118
#15 0x00f6932e in QThreadPrivate::start (arg=0x9376e80) at thread/qthread_unix.cpp:248
#16 0x00a6396e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#17 0x07b03a4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb78ab710 (LWP 6771)):
[KCrash Handler]
#6  0x07aaafe1 in ?? () from /lib/tls/i686/cmov/libc.so.6
#7  0x009d5006 in bt::Chunk::readPiece (this=0xb40cd1c0, off=2883584, len=165476309, data=0x9dcf7d5 "g\355\t\316") at /usr/include/bits/string3.h:52
#8  0x00988eea in Packet (this=0x9da5a28, index=10859, begin=2883584, len=16384, ch=0xb40cd1c0) at ../../libbtcore/download/packet.cpp:85
#9  0x009853bf in bt::PacketWriter::sendChunk (this=0xb59502a8, index=10859, begin=2883584, len=16384, ch=0xb40cd1c0) at ../../libbtcore/peer/packetwriter.cpp:195
#10 0x00983a04 in bt::PeerUploader::update (this=0xaf4c5d80, cman=..., opt_unchoked=143) at ../../libbtcore/peer/peeruploader.cpp:83
#11 0x009a7df8 in bt::Uploader::update (this=0xb3e0d588, opt_unchoked=143) at ../../libbtcore/torrent/uploader.cpp:48
#12 0x009b19c1 in bt::TorrentControl::update (this=0xb4379020) at ../../libbtcore/torrent/torrentcontrol.cpp:160
#13 0x08071a63 in kt::Core::update (this=0x8dd6da0) at ../../ktorrent/core.cpp:849
#14 0x08077308 in kt::Core::qt_metacall (this=0x8dd6da0, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0xbfa3d41c) at ./core.moc:155
#15 0x01070c9a in QMetaObject::metacall (object=0x8dd6da0, cl=4096, idx=21, argv=0xbfa3d41c) at kernel/qmetaobject.cpp:237
#16 0x0107f3d5 in QMetaObject::activate (sender=0x8dd6db4, m=0x117f5a4, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3293
#17 0x010d0aa7 in QTimer::timeout (this=0x8dd6db4) at .moc/release-shared/moc_qtimer.cpp:134
#18 0x0108760e in QTimer::timerEvent (this=0x8dd6db4, e=0xbfa3d950) at kernel/qtimer.cpp:271
#19 0x0107c254 in QObject::event (this=0x8dd6db4, e=0x9aede98) at kernel/qobject.cpp:1212
#20 0x024b74dc in QApplicationPrivate::notify_helper (this=0x8c8eba0, receiver=0x8dd6db4, e=0xbfa3d950) at kernel/qapplication.cpp:4300
#21 0x024be05e in QApplication::notify (this=0xbfa3dca4, receiver=0x8dd6db4, e=0xbfa3d950) at kernel/qapplication.cpp:3704
#22 0x0073ef2a in KApplication::notify (this=0xbfa3dca4, receiver=0x8dd6db4, event=0xbfa3d950) at ../../kdeui/kernel/kapplication.cpp:302
#23 0x0106ba3b in QCoreApplication::notifyInternal (this=0xbfa3dca4, receiver=0x8dd6db4, event=0xbfa3d950) at kernel/qcoreapplication.cpp:704
#24 0x0109ad66 in QCoreApplication::sendEvent (this=0x8c93ca4) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#25 QTimerInfoList::activateTimers (this=0x8c93ca4) at kernel/qeventdispatcher_unix.cpp:603
#26 0x01097917 in timerSourceDispatch (source=0x8c94100) at kernel/qeventdispatcher_glib.cpp:184
#27 idleTimerSourceDispatch (source=0x8c94100) at kernel/qeventdispatcher_glib.cpp:231
#28 0x062525e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#29 0x062562d8 in ?? () from /lib/libglib-2.0.so.0
#30 0x062564b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#31 0x010975d5 in QEventDispatcherGlib::processEvents (this=0x8c6b380, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#32 0x02577135 in QGuiEventDispatcherGlib::processEvents (this=0x8c6b380, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x0106a059 in QEventLoop::processEvents (this=0xbfa3dc14, flags=) at kernel/qeventloop.cpp:149
#34 0x0106a4aa in QEventLoop::exec (this=0xbfa3dc14, flags=...) at kernel/qeventloop.cpp:201
#35 0x0106e69f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#36 0x024b7577 in QApplication::exec () at kernel/qapplication.cpp:3579
#37 0x08067a51 in main (argc=1, argv=0xbfa3e074) at ../../ktorrent/main.cpp:172

Possible duplicates by query: bug 243650, bug 241598, bug 241158, bug 235873.

Reported using DrKonqi