Bug 300109

Application: ktorrent (4.1.3)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed: I chose to download Microsoft Visual basic opted to download and the crash occurred

The crash can be reproduced every time.

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6187e9d780 (LWP 2804))]

Thread 7 (Thread 0x7f6170cb8700 (LWP 2805)):
#0  0x00007f6183d4c0bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f617f90988f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f617f8ceabd in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f617f8cef96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f617f8cf45a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6170cbd98b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#6  0x00007f617f8f09a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f6181120e9a in start_thread (arg=0x7f6170cb8700) at pthread_create.c:308
#8  0x00007f6183d594bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f616bfff700 (LWP 2806)):
#0  0x00007f617f8a0210 in read@plt () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f617f90988f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f617f8ceabd in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f617f8cef96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f617f8cf45a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f617712b2c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f617f8f09a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f6181120e9a in start_thread (arg=0x7f616bfff700) at pthread_create.c:308
#8  0x00007f6183d594bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f6160bb7700 (LWP 2809)):
#0  0x00007f6183d4c0bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f617f90988f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f617f8ceabd in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f617f8cef96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f617f8cf124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f61856ac426 in QEventDispatcherGlib::processEvents (this=0x7f61500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f618567bc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f618567bed7 in QEventLoop::exec (this=0x7f6160bb6e00, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f618557afa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f618557dfcb in QThreadPrivate::start (arg=0x1b561c0) at thread/qthread_unix.cpp:298
#10 0x00007f6181120e9a in start_thread (arg=0x7f6160bb7700) at pthread_create.c:308
#11 0x00007f6183d594bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f6157fff700 (LWP 2810)):
#0  0x00007f6183d4db03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f618799c1aa in net::Poll::poll (this=0x7f6157ffecd0, timeout=<optimized out>) at ../../src/net/poll.cpp:99
#2  0x00007f61879fe93b in dht::RPCServer::Private::run (this=0x1b66610) at ../../src/dht/rpcserver.cpp:95
#3  0x00007f618557dfcb in QThreadPrivate::start (arg=0x1b66610) at thread/qthread_unix.cpp:298
#4  0x00007f6181120e9a in start_thread (arg=0x7f6157fff700) at pthread_create.c:308
#5  0x00007f6183d594bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f614051a700 (LWP 2836)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6155a61dec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f6155a61f19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f6181120e9a in start_thread (arg=0x7f614051a700) at pthread_create.c:308
#4  0x00007f6183d594bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f613d1ce700 (LWP 2837)):
#0  0x00007f617f90a591 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f617f8ce713 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f617f8cef1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f617f8cf124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f61856ac426 in QEventDispatcherGlib::processEvents (this=0x7f6138002690, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f618567bc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f618567bed7 in QEventLoop::exec (this=0x7f613d1cde00, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f618557afa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f618557dfcb in QThreadPrivate::start (arg=0x2e608a0) at thread/qthread_unix.cpp:298
#9  0x00007f6181120e9a in start_thread (arg=0x7f613d1ce700) at pthread_create.c:308
#10 0x00007f6183d594bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6187e9d780 (LWP 2804)):
[KCrash Handler]
#6  data (this=0x8) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:135
#7  qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at ../../include/QtCore/../../src/corelib/global/qglobal.h:2430
#8  d_func (this=0x0) at qdbusabstractinterface.h:159
#9  QDBusAbstractInterface::callWithArgumentList (this=0x0, mode=QDBus::Block, method=..., args=...) at qdbusabstractinterface.cpp:430
#10 0x00007f614b83f100 in Reset (this=0x0) at ../../dnssd/avahi_entrygroup_interface.h:94
#11 serverStateChanged (this=0x21985e0, s=<optimized out>) at ../../dnssd/avahi-publicservice.cpp:203
#12 DNSSD::PublicServicePrivate::serverStateChanged (this=0x21985e0, s=<optimized out>) at ../../dnssd/avahi-publicservice.cpp:193
#13 0x00007f614b83f343 in DNSSD::PublicService::publishAsync (this=<optimized out>) at ../../dnssd/avahi-publicservice.cpp:230
#14 0x00007f6146b389ce in kt::TorrentService::start (this=0x283dfb0) at ../../../plugins/zeroconf/torrentservice.cpp:83
#15 0x00007f61879d6a9d in start (this=0x202f200) at ../../src/torrent/peersourcemanager.cpp:81
#16 bt::PeerSourceManager::start (this=0x202f200) at ../../src/torrent/peersourcemanager.cpp:73
#17 0x00007f61879e009d in bt::TorrentControl::continueStart (this=0x21d8cf0) at ../../src/torrent/torrentcontrol.cpp:461
#18 0x00007f61879e09cf in bt::TorrentControl::start (this=0x21d8cf0) at ../../src/torrent/torrentcontrol.cpp:432
#19 0x00007f61876e3e01 in kt::QueueManager::startSafely (this=<optimized out>, tc=0x21d8cf0) at ../../libktcore/torrent/queuemanager.cpp:731
#20 0x00007f61876e3f49 in startInternal (tc=0x21d8cf0, this=0x1b48dc0) at ../../libktcore/torrent/queuemanager.cpp:102
#21 kt::QueueManager::startInternal (this=0x1b48dc0, tc=0x21d8cf0) at ../../libktcore/torrent/queuemanager.cpp:91
#22 0x00007f61876e5ec3 in kt::QueueManager::orderQueue (this=0x1b48dc0) at ../../libktcore/torrent/queuemanager.cpp:588
#23 0x00000000004330e0 in kt::Core::qt_metacall (this=0x1b48bf0, _c=QMetaObject::InvokeMetaMethod, _id=39, _a=0x2245da0) at ./core.moc:194
#24 0x00007f6185696446 in QObject::event (this=0x1b48bf0, e=<optimized out>) at kernel/qobject.cpp:1195
#25 0x00007f61849ff894 in notify_helper (e=0x2245eb0, receiver=0x1b48bf0, this=0x18efdd0) at kernel/qapplication.cpp:4559
#26 QApplicationPrivate::notify_helper (this=0x18efdd0, receiver=0x1b48bf0, e=0x2245eb0) at kernel/qapplication.cpp:4531
#27 0x00007f6184a04713 in QApplication::notify (this=0x7fff6f703290, receiver=0x1b48bf0, e=0x2245eb0) at kernel/qapplication.cpp:4420
#28 0x0000000000439a21 in kt::App::notify (this=<optimized out>, receiver=<optimized out>, event=<optimized out>) at ../../ktorrent/app.cpp:99
#29 0x00007f618567ce9c in QCoreApplication::notifyInternal (this=0x7fff6f703290, receiver=0x1b48bf0, event=0x2245eb0) at kernel/qcoreapplication.cpp:876
#30 0x00007f6185680c6a in sendEvent (event=0x2245eb0, receiver=0x1b48bf0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1893670) at kernel/qcoreapplication.cpp:1500
#32 0x00007f61856abf93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#33 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#34 0x00007f617f8cec9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f617f8cf060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f617f8cf124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f61856ac3bf in QEventDispatcherGlib::processEvents (this=0x1894b30, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#38 0x00007f6184aa7d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007f618567bc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007f618567bed7 in QEventLoop::exec (this=0x7fff6f703220, flags=...) at kernel/qeventloop.cpp:204
#41 0x00007f6185680f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#42 0x0000000000428452 in main (argc=5, argv=0x7fff6f704108) at ../../ktorrent/main.cpp:177

Possible duplicates by query: bug 299894, bug 299727, bug 299520, bug 297416, bug 296028.

Reported using DrKonqi