Bug 281507

Application: ktorrent (4.1.0)
KDE Platform Version: 4.6.00 (4.6.0) "release 6"
Qt Version: 4.7.1
Operating System: Linux 2.6.37.6-0.7-desktop i686
Distribution: "openSUSE 11.4 (i586)"

-- Information about the crash:
- What I was doing when the application crashed:
I was downloading files from a torrent; I had closed the window and the icon was in the tray, and I was doing other stuff when it suddenly disappears (the icon) and the crash reporter opens.

This has happened before with other torrents, and it always seems random; I am submitting a bug report now because it is happening too often (this is the third time, but I do not torrent much). I can resume the torrent after restarting KTorrent and it works.

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
[Current thread is 1 (Thread 0xb43c4930 (LWP 10942))]

Thread 7 (Thread 0xb1f21b70 (LWP 10944)):
[KCrash Handler]
#7  0xb7677338 in ?? () from /usr/lib/libktorrent.so.3
#8  0xb7673171 in utp::UTPServer::Private::wakeUpPollPipes(QSharedPointer<utp::Connection>, bool, bool) () from /usr/lib/libktorrent.so.3
#9  0xb76732aa in utp::UTPServer::stateChanged(QSharedPointer<utp::Connection>, bool, bool) () from /usr/lib/libktorrent.so.3
#10 0xb767b3f3 in utp::Connection::checkState() () from /usr/lib/libktorrent.so.3
#11 0xb767b9fe in utp::Connection::handlePacket(utp::PacketParser const&, QByteArray const&) () from /usr/lib/libktorrent.so.3
#12 0xb7674b91 in utp::UTPServer::handlePacket(QByteArray const&, net::Address const&) () from /usr/lib/libktorrent.so.3
#13 0xb7672bdf in utp::UTPServer::Private::dataReceived(QByteArray const&, net::Address const&) () from /usr/lib/libktorrent.so.3
#14 0xb75d1ac9 in net::ServerSocket::readyToRead(int) () from /usr/lib/libktorrent.so.3
#15 0xb75af395 in net::ServerSocket::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libktorrent.so.3
#16 0xb67e18cd in QMetaObject::metacall (object=0x81d9370, cl=QMetaObject::InvokeMetaMethod, idx=5, argv=0xb1f20c98) at kernel/qmetaobject.cpp:237
#17 0xb67f1a2c in QMetaObject::activate (sender=0x8294bf0, m=0xb6915550, local_signal_index=0, argv=0xb1f20c98) at kernel/qobject.cpp:3272
#18 0xb6840e55 in QSocketNotifier::activated (this=0x8294bf0, _t1=17) at .moc/release-shared/moc_qsocketnotifier.cpp:89
#19 0xb67f7bbf in QSocketNotifier::event (this=0x8294bf0, e=0xb1f210d4) at kernel/qsocketnotifier.cpp:317
#20 0xb5ce8414 in QApplicationPrivate::notify_helper (this=0x8164be0, receiver=0x8294bf0, e=0xb1f210d4) at kernel/qapplication.cpp:4445
#21 0xb5cf10c7 in QApplication::notify (this=0xbf801850, receiver=0x8294bf0, e=0xb1f210d4) at kernel/qapplication.cpp:3845
#22 0x0807cb27 in ?? ()
#23 0xb67dafde in QCoreApplication::notifyInternal (this=0xbf801850, receiver=0x8294bf0, event=0xb1f210d4) at kernel/qcoreapplication.cpp:732
#24 0xb6809108 in sendEvent (source=0x8294e00) at kernel/qcoreapplication.h:215
#25 socketNotifierSourceDispatch (source=0x8294e00) at kernel/qeventdispatcher_glib.cpp:110
#26 0xb4d2d509 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#27 0xb4d2dd10 in ?? () from /lib/libglib-2.0.so.0
#28 0xb4d2dfce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#29 0xb680976b in QEventDispatcherGlib::processEvents (this=0x81bf610, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#30 0xb67da2bd in QEventLoop::processEvents (this=0xb1f212e0, flags=...) at kernel/qeventloop.cpp:149
#31 0xb67da4e9 in QEventLoop::exec (this=0xb1f212e0, flags=...) at kernel/qeventloop.cpp:201
#32 0xb66db7b9 in QThread::exec (this=0x821e7d0) at thread/qthread.cpp:490
#33 0xb7678cdd in utp::UTPServerThread::run() () from /usr/lib/libktorrent.so.3
#34 0xb66de3aa in QThreadPrivate::start (arg=0x821e7d0) at thread/qthread_unix.cpp:285
#35 0xb6663b05 in start_thread () from /lib/libpthread.so.0
#36 0xb59d7d5e in clone () from /lib/libc.so.6

Thread 6 (Thread 0xae35ab70 (LWP 10947)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6668105 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb0adac87 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0xb6663b05 in start_thread () from /lib/libpthread.so.0
#4  0xb59d7d5e in clone () from /lib/libc.so.6

Thread 5 (Thread 0xad00bb70 (LWP 10951)):
#0  0xb4d2c019 in g_main_context_acquire () from /lib/libglib-2.0.so.0
#1  0xb4d2d85d in ?? () from /lib/libglib-2.0.so.0
#2  0xb4d2dfce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0xb68097b7 in QEventDispatcherGlib::processEvents (this=0x878cba0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0xb67da2bd in QEventLoop::processEvents (this=0xad00b2b0, flags=...) at kernel/qeventloop.cpp:149
#5  0xb67da4e9 in QEventLoop::exec (this=0xad00b2b0, flags=...) at kernel/qeventloop.cpp:201
#6  0xb66db7b9 in QThread::exec (this=0x85d30b8) at thread/qthread.cpp:490
#7  0xb67ba23d in QInotifyFileSystemWatcherEngine::run (this=0x85d30b8) at io/qfilesystemwatcher_inotify.cpp:248
#8  0xb66de3aa in QThreadPrivate::start (arg=0x85d30b8) at thread/qthread_unix.cpp:285
#9  0xb6663b05 in start_thread () from /lib/libpthread.so.0
#10 0xb59d7d5e in clone () from /lib/libc.so.6

Thread 4 (Thread 0xa71ffb70 (LWP 11014)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6668105 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb66dd38c in QMutexPrivate::wait (this=0x816ac00, timeout=-1) at thread/qmutex_unix.cpp:84
#3  0xb66d98da in QMutex::lock (this=0x816abb4) at thread/qmutex.cpp:167
#4  0xb76766d7 in utp::UTPServer::preparePolling(net::Poll*, net::Poll::Mode, QSharedPointer<utp::Connection>) () from /usr/lib/libktorrent.so.3
#5  0xb767f089 in utp::UTPSocket::prepare(net::Poll*, net::Poll::Mode) () from /usr/lib/libktorrent.so.3
#6  0xb75ccc49 in ?? () from /usr/lib/libktorrent.so.3
#7  0xb75ccd7e in ?? () from /usr/lib/libktorrent.so.3
#8  0xb75cd008 in ?? () from /usr/lib/libktorrent.so.3
#9  0xb66de3aa in QThreadPrivate::start (arg=0x8126ee8) at thread/qthread_unix.cpp:285
#10 0xb6663b05 in start_thread () from /lib/libpthread.so.0
#11 0xb59d7d5e in clone () from /lib/libc.so.6

Thread 3 (Thread 0xa69feb70 (LWP 11015)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6668105 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb66dd38c in QMutexPrivate::wait (this=0x8126de0, timeout=-1) at thread/qmutex_unix.cpp:84
#3  0xb66d98da in QMutex::lock (this=0x8126900) at thread/qmutex.cpp:167
#4  0xb75cb23e in net::SocketMonitor::lock() () from /usr/lib/libktorrent.so.3
#5  0xb75cc4f1 in ?? () from /usr/lib/libktorrent.so.3
#6  0xb75cd008 in ?? () from /usr/lib/libktorrent.so.3
#7  0xb66de3aa in QThreadPrivate::start (arg=0x8127258) at thread/qthread_unix.cpp:285
#8  0xb6663b05 in start_thread () from /lib/libpthread.so.0
#9  0xb59d7d5e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xa61fdb70 (LWP 11016)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6668105 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb66deab0 in wait (this=0x866a7f4, mutex=0x866a7f0, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#3  QWaitCondition::wait (this=0x866a7f4, mutex=0x866a7f0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#4  0xb75d0420 in ?? () from /usr/lib/libktorrent.so.3
#5  0xb66de3aa in QThreadPrivate::start (arg=0x866a7e8) at thread/qthread_unix.cpp:285
#6  0xb6663b05 in start_thread () from /lib/libpthread.so.0
#7  0xb59d7d5e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb43c4930 (LWP 10942)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6668105 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb66deab0 in wait (this=0x878c208, mutex=0x878c1f0, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#3  QWaitCondition::wait (this=0x878c208, mutex=0x878c1f0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#4  0xb66ddad5 in QThread::wait (this=0x85d30b8, time=4294967295) at thread/qthread_unix.cpp:683
#5  0xb67acd25 in QFileSystemWatcher::~QFileSystemWatcher (this=0x85d3658, __in_chrg=<value optimized out>) at io/qfilesystemwatcher.cpp:440
#6  0xb67acdf2 in QFileSystemWatcher::~QFileSystemWatcher (this=0x85d3658, __in_chrg=<value optimized out>) at io/qfilesystemwatcher.cpp:456
#7  0xb67eed24 in QObjectPrivate::deleteChildren (this=0x877d008) at kernel/qobject.cpp:1949
#8  0xb67f3bac in QObject::~QObject (this=0x877d0c0, __in_chrg=<value optimized out>) at kernel/qobject.cpp:945
#9  0xb74b6dcb in Solid::Backends::Fstab::FstabWatcher::~FstabWatcher (this=0x877d0c0, __in_chrg=<value optimized out>) at /usr/src/debug/kdelibs-4.6.0/solid/solid/backends/fstab/fstabwatcher.cpp:48
#10 0xb74b6e02 in Solid::Backends::Fstab::FstabWatcher::~FstabWatcher (this=0x877d0c0, __in_chrg=<value optimized out>) at /usr/src/debug/kdelibs-4.6.0/solid/solid/backends/fstab/fstabwatcher.cpp:51
#11 0xb74b6c62 in destroy () at /usr/src/debug/kdelibs-4.6.0/solid/solid/backends/fstab/fstabwatcher.cpp:30
#12 0xb743c729 in Solid::CleanUpGlobalStatic::~CleanUpGlobalStatic (this=0xb74ee604, __in_chrg=<value optimized out>) at /usr/src/debug/kdelibs-4.6.0/solid/solid/soliddefs_p.h:67
#13 0xb593289f in __run_exit_handlers () from /lib/libc.so.6
#14 0xb59328fd in exit () from /lib/libc.so.6
#15 0xb5d611c8 in qt_xio_errhandler () at kernel/qapplication_x11.cpp:773
#16 0xb6ceac49 in KApplication::xioErrhandler (this=0xbf801850, dpy=0x8167a80) at /usr/src/debug/kdelibs-4.6.0/kdeui/kernel/kapplication.cpp:417
#17 0xb6ceac84 in kde_xio_errhandler (dpy=0x8167a80) at /usr/src/debug/kdelibs-4.6.0/kdeui/kernel/kapplication.cpp:126
#18 0xb4fb54c4 in _XIOError () from /usr/lib/libX11.so.6
#19 0xb4fb2c9f in _XEventsQueued () from /usr/lib/libX11.so.6
#20 0xb4fa33e8 in XEventsQueued () from /usr/lib/libX11.so.6
#21 0xb5d9e395 in x11EventSourceCheck (s=0x816eba8) at kernel/qguieventdispatcher_glib.cpp:85
#22 0xb4d2d180 in g_main_context_check () from /lib/libglib-2.0.so.0
#23 0xb4d2dac8 in ?? () from /lib/libglib-2.0.so.0
#24 0xb4d2dfce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#25 0xb680976b in QEventDispatcherGlib::processEvents (this=0x8125a48, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#26 0xb5d9e55a in QGuiEventDispatcherGlib::processEvents (this=0x8125a48, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0xb67da2bd in QEventLoop::processEvents (this=0xbf8017c4, flags=...) at kernel/qeventloop.cpp:149
#28 0xb67da4e9 in QEventLoop::exec (this=0xbf8017c4, flags=...) at kernel/qeventloop.cpp:201
#29 0xb67def90 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#30 0xb5ce6104 in QApplication::exec () at kernel/qapplication.cpp:3719
#31 0x0806ba41 in _start ()

Possible duplicates by query: bug 272297, bug 271163, bug 270127, bug 270109, bug 269612.

Reported using DrKonqi