Application: muon-discover (2.1.0)
KDE Platform Version: 4.11.2
Qt Version: 4.8.4
Operating System: Linux 3.11.0-13-generic x86_64
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed:
I've tried to remove pulse audio preferences. Before that muon software center crashed also - perhaps the crashes are realted

The crash can be reproduced every time.

-- Backtrace:
Application: Muon Discover (muon-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f56fcf317c0 (LWP 10188))]

Thread 7 (Thread 0x7f56e2487700 (LWP 10189)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f56f672406b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f56f67240a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f56f28e7f6e in start_thread (arg=0x7f56e2487700) at pthread_create.c:311
#4  0x00007f56f9c099cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7f5661090700 (LWP 10190)):
#0  0x00007f56f244f0ed in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f56f244f399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f56f240f12c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f56f240f63b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f56f240f7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f56fa382a76 in QEventDispatcherGlib::processEvents (this=0x7f565c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f56fa3545ef in QEventLoop::processEvents (this=this@entry=0x7f566108fd70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f56fa3548e5 in QEventLoop::exec (this=this@entry=0x7f566108fd70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f56fa25388f in QThread::exec (this=this@entry=0x24338a0) at thread/qthread.cpp:542
#9  0x00007f56fa335d13 in QInotifyFileSystemWatcherEngine::run (this=0x24338a0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f56fa255f2f in QThreadPrivate::start (arg=0x24338a0) at thread/qthread_unix.cpp:338
#11 0x00007f56f28e7f6e in start_thread (arg=0x7f5661090700) at pthread_create.c:311
#12 0x00007f56f9c099cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f5656945700 (LWP 10191)):
#0  0x00007f56f28eb05f in __pthread_mutex_unlock_usercnt (mutex=0x7f5650000a60, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007f56f244f3d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f56f240e830 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f56f240f565 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f56f240f7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f56fa382a76 in QEventDispatcherGlib::processEvents (this=0x7f56500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f56fa3545ef in QEventLoop::processEvents (this=this@entry=0x7f5656944db0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f56fa3548e5 in QEventLoop::exec (this=this@entry=0x7f5656944db0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f56fa25388f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x00007f56fa255f2f in QThreadPrivate::start (arg=0x2440950) at thread/qthread_unix.cpp:338
#10 0x00007f56f28e7f6e in start_thread (arg=0x7f5656945700) at pthread_create.c:311
#11 0x00007f56f9c099cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f565548d700 (LWP 10192)):
#0  0x00007f56f9bfcf7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f56f240f6a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f56f240f7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f56fa382a76 in QEventDispatcherGlib::processEvents (this=0x7f56480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f56fa3545ef in QEventLoop::processEvents (this=this@entry=0x7f565548cdb0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f56fa3548e5 in QEventLoop::exec (this=this@entry=0x7f565548cdb0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f56fa25388f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#7  0x00007f56fa255f2f in QThreadPrivate::start (arg=0x27b7450) at thread/qthread_unix.cpp:338
#8  0x00007f56f28e7f6e in start_thread (arg=0x7f565548d700) at pthread_create.c:311
#9  0x00007f56f9c099cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f5654c8c700 (LWP 10299)):
#0  0x00007f56f240ee27 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f56f240f5c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f56f240f7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f56fa382a76 in QEventDispatcherGlib::processEvents (this=0x7f564c002a50, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f56fa3545ef in QEventLoop::processEvents (this=this@entry=0x7f5654c8bd90, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f56fa3548e5 in QEventLoop::exec (this=this@entry=0x7f5654c8bd90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f56fa25388f in QThread::exec (this=this@entry=0x6617d30) at thread/qthread.cpp:542
#7  0x00007f56fbf7719e in QDeclarativePixmapReader::run (this=0x6617d30) at util/qdeclarativepixmapcache.cpp:576
#8  0x00007f56fa255f2f in QThreadPrivate::start (arg=0x6617d30) at thread/qthread_unix.cpp:338
#9  0x00007f56f28e7f6e in start_thread (arg=0x7f5654c8c700) at pthread_create.c:311
#10 0x00007f56f9c099cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f563ac86700 (LWP 10300)):
#0  0x00007f56f9c17c54 in pthread_mutex_lock (mutex=0x7f562c000a60) at forward.c:192
#1  0x00007f56f244f3a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f56f240f12c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f56f240f63b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f56f240f7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f56fa382a76 in QEventDispatcherGlib::processEvents (this=0x7f562c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f56fa3545ef in QEventLoop::processEvents (this=this@entry=0x7f563ac85db0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f56fa3548e5 in QEventLoop::exec (this=this@entry=0x7f563ac85db0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f56fa25388f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x00007f56fa255f2f in QThreadPrivate::start (arg=0x7f564c0050c0) at thread/qthread_unix.cpp:338
#10 0x00007f56f28e7f6e in start_thread (arg=0x7f563ac86700) at pthread_create.c:311
#11 0x00007f56f9c099cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f56fcf317c0 (LWP 10188)):
[KCrash Handler]
#6  QApt::Cache::depCache (this=0xffb077e8fb894853) at /build/buildd/qapt-2.0.65/src/cache.cpp:86
#7  0x00007f5647bbecf2 in QApt::Package::state (this=0x332a6c0) at /build/buildd/qapt-2.0.65/src/package.cpp:717
#8  0x00007f5645dced50 in Application::state (this=0x7f56347b1bd0) at /build/buildd/muon-2.1.0/libmuon/backends/ApplicationBackend/Application.cpp:490
#9  0x00007f56fcb4a8a4 in ResourcesProxyModel::filterAcceptsRow (this=0x2a88690, sourceRow=<optimized out>, sourceParent=...) at /build/buildd/muon-2.1.0/libmuon/resources/ResourcesProxyModel.cpp:183
#10 0x00007f56fb2c04e6 in QSortFilterProxyModelPrivate::source_items_inserted (this=this@entry=0x2a64980, source_parent=..., start=<optimized out>, end=<optimized out>, orient=orient@entry=Qt::Vertical) at itemviews/qsortfilterproxymodel.cpp:769
#11 0x00007f56fb2c06df in QSortFilterProxyModelPrivate::_q_sourceRowsInserted (this=0x2a64980, source_parent=..., start=<optimized out>, end=<optimized out>) at itemviews/qsortfilterproxymodel.cpp:1297
#12 0x00007f56fa369a58 in QMetaObject::activate (sender=sender@entry=0x23c21e0, m=m@entry=0x7f56fa6b86a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=5, argv=argv@entry=0x7fffc8accf40) at kernel/qobject.cpp:3539
#13 0x00007f56fa3b36c4 in QAbstractItemModel::rowsInserted (this=this@entry=0x23c21e0, _t1=..., _t2=347, _t3=43872) at .moc/release-shared/moc_qabstractitemmodel.cpp:197
#14 0x00007f56fa34fb0e in QAbstractItemModel::endInsertRows (this=this@entry=0x23c21e0) at kernel/qabstractitemmodel.cpp:2433
#15 0x00007f56fcb488f7 in ResourcesModel::resetBackend (this=0x23c21e0, backend=0x2ee7b70) at /build/buildd/muon-2.1.0/libmuon/resources/ResourcesModel.cpp:263
#16 0x00007f56fcb3b4c5 in ResourcesModel::qt_static_metacall (_o=0x23c21e0, _id=1205813328, _a=0x7f56478b7b90 <pkgCache::PkgIterator::operator++()>, _c=<optimized out>) at /build/buildd/muon-2.1.0/obj-x86_64-linux-gnu/libmuon/moc_ResourcesModel.cpp:99
#17 0x00007f56fa369a58 in QMetaObject::activate (sender=sender@entry=0x2ee7b70, m=m@entry=0x7f56fcd61500 <AbstractResourcesBackend::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#18 0x00007f56fcb3a2f0 in AbstractResourcesBackend::fetchingChanged (this=this@entry=0x2ee7b70) at /build/buildd/muon-2.1.0/obj-x86_64-linux-gnu/libmuon/moc_AbstractResourcesBackend.cpp:156
#19 0x00007f5645dc7d95 in ApplicationBackend::setFetching (this=0x2ee7b70, f=<optimized out>) at /build/buildd/muon-2.1.0/libmuon/backends/ApplicationBackend/ApplicationBackend.cpp:630
#20 0x00007f5645dc8a53 in ApplicationBackend::reload (this=this@entry=0x2ee7b70) at /build/buildd/muon-2.1.0/libmuon/backends/ApplicationBackend/ApplicationBackend.cpp:171
#21 0x00007f5645dc8ede in ApplicationBackend::transactionEvent (this=0x2ee7b70, status=<optimized out>) at /build/buildd/muon-2.1.0/libmuon/backends/ApplicationBackend/ApplicationBackend.cpp:263
#22 0x00007f5645dc6f1b in ApplicationBackend::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /build/buildd/muon-2.1.0/obj-x86_64-linux-gnu/libmuon/backends/ApplicationBackend/moc_ApplicationBackend.cpp:90
#23 0x00007f56fa369a58 in QMetaObject::activate (sender=0x6661830, m=m@entry=0x7f5647df49c0 <QApt::Transaction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffc8acd360) at kernel/qobject.cpp:3539
#24 0x00007f5647bdf2e1 in QApt::Transaction::statusChanged (this=<optimized out>, _t1=QApt::FinishedStatus) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transaction.cxx:291
#25 0x00007f5647bd244e in QApt::Transaction::updateProperty (this=0x6661830, type=1205813328, variant=...) at /build/buildd/qapt-2.0.65/src/transaction.cpp:518
#26 0x00007f5647bdf974 in QApt::Transaction::qt_static_metacall (_o=0x6661830, _c=<optimized out>, _id=<optimized out>, _a=0x7fffc8acd580) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transaction.cxx:164
#27 0x00007f56fa369a58 in QMetaObject::activate (sender=sender@entry=0x654f2d0, m=m@entry=0x7f5647df4aa0 <OrgKubuntuQaptworkerTransactionInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7fffc8acd580) at kernel/qobject.cpp:3539
#28 0x00007f5647be03d6 in OrgKubuntuQaptworkerTransactionInterface::propertyChanged (this=this@entry=0x654f2d0, _t1=3, _t2=...) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:246
#29 0x00007f5647be077c in OrgKubuntuQaptworkerTransactionInterface::qt_static_metacall (_o=_o@entry=0x654f2d0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=4, _a=_a@entry=0x7fffc8acd840) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:111
#30 0x00007f5647be10f7 in OrgKubuntuQaptworkerTransactionInterface::qt_metacall (this=0x654f2d0, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fffc8acd840) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:164
#31 0x00007f56f9107e36 in QDBusConnectionPrivate::deliverCall (this=0x2d1f210, object=0x654f2d0, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:951
#32 0x00007f56fa36ddce in QObject::event (this=0x654f2d0, e=<optimized out>) at kernel/qobject.cpp:1194
#33 0x00007f56fad46dfc in QApplicationPrivate::notify_helper (this=this@entry=0x2264fe0, receiver=receiver@entry=0x654f2d0, e=e@entry=0x334dea0) at kernel/qapplication.cpp:4567
#34 0x00007f56fad4d470 in QApplication::notify (this=this@entry=0x7fffc8acdfe0, receiver=receiver@entry=0x654f2d0, e=e@entry=0x334dea0) at kernel/qapplication.cpp:4353
#35 0x00007f56fba50a6a in KApplication::notify (this=0x7fffc8acdfe0, receiver=0x654f2d0, event=0x334dea0) at ../../kdeui/kernel/kapplication.cpp:311
#36 0x00007f56fa3558bd in QCoreApplication::notifyInternal (this=0x7fffc8acdfe0, receiver=receiver@entry=0x654f2d0, event=event@entry=0x334dea0) at kernel/qcoreapplication.cpp:946
#37 0x00007f56fa358e1f in sendEvent (event=0x334dea0, receiver=0x654f2d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x22181f0) at kernel/qcoreapplication.cpp:1570
#39 0x00007f56fa3592c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#40 0x00007f56fa383073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#41 postEventSourceDispatch (s=0x2267580) at kernel/qeventdispatcher_glib.cpp:279
#42 0x00007f56f240f3b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f56f240f708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f56f240f7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f56fa382a55 in QEventDispatcherGlib::processEvents (this=0x2264530, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#46 0x00007f56fade89d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#47 0x00007f56fa3545ef in QEventLoop::processEvents (this=this@entry=0x7fffc8acdef0, flags=...) at kernel/qeventloop.cpp:149
#48 0x00007f56fa3548e5 in QEventLoop::exec (this=this@entry=0x7fffc8acdef0, flags=...) at kernel/qeventloop.cpp:204
#49 0x00007f56fa359e5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#50 0x00007f56fad4534c in QApplication::exec () at kernel/qapplication.cpp:3828
#51 0x000000000040b4dc in main (argc=1, argv=0x7fffc8ace138) at /build/buildd/muon-2.1.0/discover/main.cpp:86

The reporter indicates this bug may be a duplicate of or related to bug 314916.

Possible duplicates by query: bug 326966, bug 326448, bug 326307.

Reported using DrKonqi