Application: ktorrent (4.3.1)
KDE Platform Version: 4.14.9
Qt Version: 4.8.6
Operating System: Linux 4.0.5-200.fc21.x86_64 x86_64
Distribution: "Fedora release 21 (Twenty One)"

-- Information about the crash:
Adding new torrent when the application disappeared and crashed.

-- Backtrace:
Application: KTorrent (ktorrent), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f0606b928c0 (LWP 5092))]

Thread 10 (Thread 0x7f0583fff700 (LWP 5098)):
#0  0x00007f0601aa1c8d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f05fb7aeb34 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f057c0013e0, timeout=5633, context=0x7f057c0009a0) at gmain.c:4076
#2  0x00007f05fb7aeb34 in g_main_context_iterate (context=context@entry=0x7f057c0009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f05fb7aec4c in g_main_context_iteration (context=0x7f057c0009a0, may_block=1) at gmain.c:3842
#4  0x00007f060274d57e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f057c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f060271cd81 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0583ffed10, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f060271d0e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0583ffed10, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f0602611bb9 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:538
#8  0x00007f060261441f in QThreadPrivate::start(void*) (arg=0x304e330) at thread/qthread_unix.cpp:349
#9  0x00007f0603c3f52a in start_thread (arg=0x7f0583fff700) at pthread_create.c:310
#10 0x00007f0601aad22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f0583175700 (LWP 5099)):
#0  0x00007f0603c44590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f05d7260c93 in JSC::BlockAllocator::blockFreeingThreadMain() () at /lib64/libQtWebKit.so.4
#2  0x00007f05d7570c16 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libQtWebKit.so.4
#3  0x00007f0603c3f52a in start_thread (arg=0x7f0583175700) at pthread_create.c:310
#4  0x00007f0601aad22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f0590b1e700 (LWP 5129)):
#0  0x00007f0603c44939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f0602612efa in thread_sleep(timespec*) (ti=ti@entry=0x7f0590b1dca0) at thread/qthread_unix.cpp:492
#2  0x00007f06026137bd in QThread::msleep(unsigned long) (msecs=<optimized out>) at thread/qthread_unix.cpp:518
#3  0x00007f06066e95bf in net::DownloadThread::update() () at /lib64/libktorrent.so.5
#4  0x00007f06066e9669 in net::NetworkThread::run() () at /lib64/libktorrent.so.5
#5  0x00007f060261441f in QThreadPrivate::start(void*) (arg=0x1d142b0) at thread/qthread_unix.cpp:349
#6  0x00007f0603c3f52a in start_thread (arg=0x7f0590b1e700) at pthread_create.c:310
#7  0x00007f0601aad22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f059131f700 (LWP 5130)):
#0  0x00007f0603c44939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f0602612efa in thread_sleep(timespec*) (ti=ti@entry=0x7f059131eca0) at thread/qthread_unix.cpp:492
#2  0x00007f06026137bd in QThread::msleep(unsigned long) (msecs=<optimized out>) at thread/qthread_unix.cpp:518
#3  0x00007f06066e8ec3 in net::UploadThread::update() () at /lib64/libktorrent.so.5
#4  0x00007f06066e9669 in net::NetworkThread::run() () at /lib64/libktorrent.so.5
#5  0x00007f060261441f in QThreadPrivate::start(void*) (arg=0x1d146a0) at thread/qthread_unix.cpp:349
#6  0x00007f0603c3f52a in start_thread (arg=0x7f059131f700) at pthread_create.c:310
#7  0x00007f0601aad22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f05df289700 (LWP 5131)):
#0  0x00007f0603c44590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0602614976 in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x32acb50) at thread/qwaitcondition_unix.cpp:86
#2  0x00007f0602614976 in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x304ffc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f06066ebf4a in net::ReverseResolverThread::run() () at /lib64/libktorrent.so.5
#4  0x00007f060261441f in QThreadPrivate::start(void*) (arg=0x304ffb0) at thread/qthread_unix.cpp:349
#5  0x00007f0603c3f52a in start_thread (arg=0x7f05df289700) at pthread_create.c:310
#6  0x00007f0601aad22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f057b7fe700 (LWP 5516)):
#0  0x00007f0603c44939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f0602614954 in QWaitCondition::wait(QMutex*, unsigned long) (time=30000, this=0x3235ee0) at thread/qwaitcondition_unix.cpp:84
#2  0x00007f0602614954 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x3235c90, mutex=mutex@entry=0x3246428, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f0602607cd5 in QThreadPoolThread::run() (this=0x3235c80) at concurrent/qthreadpool.cpp:142
#4  0x00007f060261441f in QThreadPrivate::start(void*) (arg=0x3235c80) at thread/qthread_unix.cpp:349
#5  0x00007f0603c3f52a in start_thread (arg=0x7f057b7fe700) at pthread_create.c:310
#6  0x00007f0601aad22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f0580e89700 (LWP 5517)):
#0  0x00007f0603c44939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f0602614954 in QWaitCondition::wait(QMutex*, unsigned long) (time=30000, this=0x1fc0260) at thread/qwaitcondition_unix.cpp:84
#2  0x00007f0602614954 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x32315c0, mutex=mutex@entry=0x3246428, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f0602607cd5 in QThreadPoolThread::run() (this=0x32315b0) at concurrent/qthreadpool.cpp:142
#4  0x00007f060261441f in QThreadPrivate::start(void*) (arg=0x32315b0) at thread/qthread_unix.cpp:349
#5  0x00007f0603c3f52a in start_thread (arg=0x7f0580e89700) at pthread_create.c:310
#6  0x00007f0601aad22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f057bfff700 (LWP 5518)):
#0  0x00007f0603c44939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f0602614954 in QWaitCondition::wait(QMutex*, unsigned long) (time=30000, this=0x3235510) at thread/qwaitcondition_unix.cpp:84
#2  0x00007f0602614954 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x3041360, mutex=mutex@entry=0x3246428, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f0602607cd5 in QThreadPoolThread::run() (this=0x3041350) at concurrent/qthreadpool.cpp:142
#4  0x00007f060261441f in QThreadPrivate::start(void*) (arg=0x3041350) at thread/qthread_unix.cpp:349
#5  0x00007f0603c3f52a in start_thread (arg=0x7f057bfff700) at pthread_create.c:310
#6  0x00007f0601aad22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f0591b20700 (LWP 5519)):
#0  0x00007f0603c44939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f0602614954 in QWaitCondition::wait(QMutex*, unsigned long) (time=30000, this=0x3234dc0) at thread/qwaitcondition_unix.cpp:84
#2  0x00007f0602614954 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x315da00, mutex=mutex@entry=0x3246428, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f0602607cd5 in QThreadPoolThread::run() (this=0x315d9f0) at concurrent/qthreadpool.cpp:142
#4  0x00007f060261441f in QThreadPrivate::start(void*) (arg=0x315d9f0) at thread/qthread_unix.cpp:349
#5  0x00007f0603c3f52a in start_thread (arg=0x7f0591b20700) at pthread_create.c:310
#6  0x00007f0601aad22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f0606b928c0 (LWP 5092)):
[KCrash Handler]
#6  0x00007f06019e18d7 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007f06019e353a in __GI_abort () at abort.c:89
#8  0x00007f0601a24da3 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7f0601b342f0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007f0601a2e07a in _int_malloc (ptr=<optimized out>, str=0x7f0601b34460 "malloc(): smallbin double linked list corrupted", action=3) at malloc.c:4974
#10 0x00007f0601a2e07a in _int_malloc (av=av@entry=0x7f0601d64cc0 <main_arena>, bytes=bytes@entry=24) at malloc.c:3355
#11 0x00007f0601a3015e in __GI___libc_malloc (bytes=24) at malloc.c:2896
#12 0x00007f06022e8608 in operator new(unsigned long) (sz=24) at ../../../../libstdc++-v3/libsupc++/new_op.cc:49
#13 0x00007f0606786b30 in bt::MetadataDownload::download(unsigned int) () at /lib64/libktorrent.so.5
#14 0x00007f0606786ddd in bt::MetadataDownload::downloadNext() () at /lib64/libktorrent.so.5
#15 0x00007f0606787158 in bt::MetadataDownload::data(unsigned int, QByteArray const&) () at /lib64/libktorrent.so.5
#16 0x00007f06067099ab in bt::UTMetaData::data(bt::BDictNode*, QByteArray const&) () at /lib64/libktorrent.so.5
#17 0x00007f060670a2e7 in bt::UTMetaData::handlePacket(unsigned char const*, unsigned int) () at /lib64/libktorrent.so.5
#18 0x00007f06066ff06d in bt::Peer::handleExtendedPacket(unsigned char const*, unsigned int) () at /lib64/libktorrent.so.5
#19 0x00007f0606707d25 in bt::PacketReader::update(bt::PeerInterface&) () at /lib64/libktorrent.so.5
#20 0x00007f06066fbf28 in bt::Peer::update() () at /lib64/libktorrent.so.5
#21 0x00007f0606703acb in bt::PeerManager::Private::update() () at /lib64/libktorrent.so.5
#22 0x000000000044d44f in kt::MagnetModel::updateMagnetDownloaders() ()
#23 0x000000000042bbee in kt::Core::update() ()
#24 0x0000000000433e65 in kt::Core::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) ()
#25 0x00007f0602732d9c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=0x1faa668, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3567
#26 0x00007f0602737363 in QObject::event(QEvent*) (this=0x1faa668, e=<optimized out>) at kernel/qobject.cpp:1253
#27 0x00007f0602c4eefc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x1d52320, receiver=receiver@entry=0x1faa668, e=e@entry=0x7ffe6e8ec490) at kernel/qapplication.cpp:4565
#28 0x00007f0602c55958 in QApplication::notify(QObject*, QEvent*) (this=0x7ffe6e8ed3f0, receiver=0x1faa668, e=0x7ffe6e8ec490) at kernel/qapplication.cpp:4351
#29 0x000000000043a662 in kt::App::notify(QObject*, QEvent*) ()
#30 0x00007f060271e22d in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffe6e8ed3f0, receiver=0x1faa668, event=event@entry=0x7ffe6e8ec490) at kernel/qcoreapplication.cpp:953
#31 0x00007f060274fbab in QTimerInfoList::activateTimers() (event=0x7ffe6e8ec490, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#32 0x00007f060274fbab in QTimerInfoList::activateTimers() (this=0x1d52730) at kernel/qeventdispatcher_unix.cpp:621
#33 0x00007f060274cbc9 in idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#34 0x00007f060274cbc9 in idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:240
#35 0x00007f05fb7ae7fb in g_main_context_dispatch (context=0x1d5a990) at gmain.c:3111
#36 0x00007f05fb7ae7fb in g_main_context_dispatch (context=context@entry=0x1d5a990) at gmain.c:3710
#37 0x00007f05fb7aeb98 in g_main_context_iterate (context=context@entry=0x1d5a990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3781
#38 0x00007f05fb7aec4c in g_main_context_iteration (context=0x1d5a990, may_block=1) at gmain.c:3842
#39 0x00007f060274d55e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1d46b90, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#40 0x00007f0602cf2176 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#41 0x00007f060271cd81 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe6e8ec710, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007f060271d0e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe6e8ec710, flags=...) at kernel/qeventloop.cpp:204
#43 0x00007f06027227c9 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1225
#44 0x00000000004278e8 in main ()

Possible duplicates by query: bug 346742.

Reported using DrKonqi