Bug 326446

Application: muon-installer (2.0.65)
KDE Platform Version: 4.11.2
Qt Version: 4.8.4
Operating System: Linux 3.11.0-12-generic i686
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed:

I received a notification of a software update and clicked on the Notification Icon in the system tray area.  Muon reported everything already up-to-date, so I started the Muon app directly and it crashes after a few seconds.  Reproducable every time I start Muon.

The crash can be reproduced every time.

-- Backtrace:
Application: Muon Software Center (muon-installer), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb3d1c980 (LWP 3063))]

Thread 3 (Thread 0xb03adb40 (LWP 3087)):
#0  __pthread_mutex_unlock_usercnt (mutex=0xafa00558, decr=1) at pthread_mutex_unlock.c:47
#1  0xb5a46c04 in pthread_mutex_unlock (mutex=0xafa00558) at forward.c:194
#2  0xb4686be0 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb46439f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb4643c98 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5d898df in QEventDispatcherGlib::processEvents (this=0xafa00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb5d589f3 in QEventLoop::processEvents (this=this@entry=0xb03ad228, flags=...) at kernel/qeventloop.cpp:149
#7  0xb5d58d19 in QEventLoop::exec (this=this@entry=0xb03ad228, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5c47e3d in QThread::exec (this=this@entry=0x84ad528) at thread/qthread.cpp:542
#9  0xb5d38e14 in QInotifyFileSystemWatcherEngine::run (this=0x84ad528) at io/qfilesystemwatcher_inotify.cpp:265
#10 0xb5c4a72f in QThreadPrivate::start (arg=0x84ad528) at thread/qthread_unix.cpp:338
#11 0xb4721d78 in start_thread (arg=0xb03adb40) at pthread_create.c:311
#12 0xb5a3901e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 2 (Thread 0xaca76b40 (LWP 3144)):
#0  0xb772c424 in __kernel_vsyscall ()
#1  0xb4725c33 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:250
#2  0xb5a46a14 in __pthread_cond_timedwait (cond=0x8cc69e0, mutex=0x8cc69c8, abstime=0xaca76228) at forward.c:162
#3  0xb5c4ac83 in wait (time=30000, this=0x8cc69c8) at thread/qwaitcondition_unix.cpp:84
#4  QWaitCondition::wait (this=0x8cc6078, mutex=mutex@entry=0x8cc6074, time=30000) at thread/qwaitcondition_unix.cpp:158
#5  0xb5c3d732 in QThreadPoolThread::run (this=0x8cc6a78) at concurrent/qthreadpool.cpp:141
#6  0xb5c4a72f in QThreadPrivate::start (arg=0x8cc6a78) at thread/qthread_unix.cpp:338
#7  0xb4721d78 in start_thread (arg=0xaca76b40) at pthread_create.c:311
#8  0xb5a3901e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 1 (Thread 0xb3d1c980 (LWP 3063)):
[KCrash Handler]
#7  KNS3::Entry::providerId (this=0x0) at ../../../knewstuff/knewstuff3/entry.cpp:52
#8  0xb0f202d8 in KNSResource::origin (this=0x8db5c68) at /build/buildd/muon-2.0.65+git20131008/libmuon/backends/KNSBackend/KNSResource.cpp:159
#9  0x080617c3 in fetchOrigins () at /build/buildd/muon-2.0.65+git20131008/installer/MainWindow.cpp:268
#10 0x080626d1 in MainWindow::populateViews (this=0x82a0128) at /build/buildd/muon-2.0.65+git20131008/installer/MainWindow.cpp:297
#11 0x0805e210 in MainWindow::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /build/buildd/muon-2.0.65+git20131008/obj-i686-linux-gnu/installer/moc_MainWindow.cpp:84
#12 0xb5d6efc7 in QMetaObject::activate (sender=sender@entry=0x83289e0, m=m@entry=0xb770f9f8 <ResourcesModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#13 0xb76e5f65 in ResourcesModel::allInitialized (this=this@entry=0x83289e0) at /build/buildd/muon-2.0.65+git20131008/obj-i686-linux-gnu/libmuon/moc_ResourcesModel.cpp:176
#14 0xb76f5977 in ResourcesModel::resetBackend (this=this@entry=0x83289e0, backend=backend@entry=0x8383ae0) at /build/buildd/muon-2.0.65+git20131008/libmuon/resources/ResourcesModel.cpp:268
#15 0xb76f5e2f in ResourcesModel::callerFetchingChanged (this=0x83289e0) at /build/buildd/muon-2.0.65+git20131008/libmuon/resources/ResourcesModel.cpp:241
#16 0xb76e7630 in ResourcesModel::qt_static_metacall (_o=0x0, _id=1, _a=0xbfbd3538, _c=<optimized out>) at /build/buildd/muon-2.0.65+git20131008/obj-i686-linux-gnu/libmuon/moc_ResourcesModel.cpp:99
#17 0xb5d6efc7 in QMetaObject::activate (sender=sender@entry=0x8383ae0, m=m@entry=0xb770fa88 <AbstractResourcesBackend::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#18 0xb76e5765 in AbstractResourcesBackend::fetchingChanged (this=this@entry=0x8383ae0) at /build/buildd/muon-2.0.65+git20131008/obj-i686-linux-gnu/libmuon/moc_AbstractResourcesBackend.cpp:156
#19 0xb0f1cbd7 in KNSBackend::setFetching (this=this@entry=0x8383ae0, f=f@entry=false) at /build/buildd/muon-2.0.65+git20131008/libmuon/backends/KNSBackend/KNSBackend.cpp:112
#20 0xb0f1e4b0 in KNSBackend::receivedContents (this=this@entry=0x8383ae0, job=0x8e92768) at /build/buildd/muon-2.0.65+git20131008/libmuon/backends/KNSBackend/KNSBackend.cpp:165
#21 0xb0f1bf39 in KNSBackend::qt_static_metacall (_o=_o@entry=0x8383ae0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbfbd3718) at /build/buildd/muon-2.0.65+git20131008/obj-i686-linux-gnu/libmuon/backends/KNSBackend/moc_KNSBackend.cpp:60
#22 0xb5d6efc7 in QMetaObject::activate (sender=0x8e92768, m=0xb4883540 <Attica::BaseJob::staticMetaObject>, local_signal_index=0, argv=0xbfbd3718) at kernel/qobject.cpp:3539
#23 0xb47d8505 in Attica::BaseJob::finished(Attica::BaseJob*) () from /usr/lib/i386-linux-gnu/libattica.so.0.4
#24 0xb47d8749 in Attica::BaseJob::dataFinished() () from /usr/lib/i386-linux-gnu/libattica.so.0.4
#25 0xb47d8a68 in ?? () from /usr/lib/i386-linux-gnu/libattica.so.0.4
#26 0xb5d6efc7 in QMetaObject::activate (sender=sender@entry=0x8e928e8, m=m@entry=0xb5615364 <QNetworkReply::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#27 0xb55c1e95 in QNetworkReply::finished (this=0x8e928e8) at .moc/release-shared/moc_qnetworkreply.cpp:166
#28 0xb55c20c0 in QNetworkReply::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0xbfbd3984, _c=<optimized out>) at .moc/release-shared/moc_qnetworkreply.cpp:107
#29 0xb5d629a4 in QMetaMethod::invoke (this=this@entry=0xbfbd3aa4, object=0x8e928e8, connectionType=<optimized out>, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#30 0xb5d64f83 in QMetaObject::invokeMethod (obj=obj@entry=0x8e928e8, member=member@entry=0xb7630815 "finished", type=type@entry=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#31 0xb74a09b8 in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., type=type@entry=Qt::AutoConnection, member=0xb7630815 "finished", obj=0x8e928e8) at /usr/include/qt4/QtCore/qobjectdefs.h:418
#32 KDEPrivate::AccessManagerReply::emitFinished (this=this@entry=0x8e928e8, state=state@entry=true, type=type@entry=Qt::AutoConnection) at ../../kio/kio/accessmanagerreply_p.cpp:484
#33 0xb74a2944 in KDEPrivate::AccessManagerReply::slotResult (this=0x8e928e8, kJob=0x88cd0c8) at ../../kio/kio/accessmanagerreply_p.cpp:427
#34 0xb74a3389 in KDEPrivate::AccessManagerReply::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0xbfbd3ea8, _c=<optimized out>) at ./accessmanagerreply_p.moc:61
#35 0xb5d6efc7 in QMetaObject::activate (sender=sender@entry=0x88cd0c8, m=m@entry=0xb61744cc <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0xbfbd3ea8) at kernel/qobject.cpp:3539
#36 0xb5fce9e5 in KJob::result (this=this@entry=0x88cd0c8, _t1=_t1@entry=0x88cd0c8) at ./kjob.moc:208
#37 0xb5fcea32 in KJob::emitResult (this=this@entry=0x88cd0c8) at ../../kdecore/jobs/kjob.cpp:318
#38 0xb74e2f31 in KIO::SimpleJob::slotFinished (this=0x88cd0c8) at ../../kio/kio/job.cpp:496
#39 0xb74e4336 in KIO::TransferJob::slotFinished (this=0x88cd0c8) at ../../kio/kio/job.cpp:1099
#40 0xb74e4ed0 in KIO::TransferJob::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0xbfbd4098, _c=<optimized out>) at ./jobclasses.moc:388
#41 0xb5d6efc7 in QMetaObject::activate (sender=sender@entry=0x82a98c0, m=m@entry=0xb76a9480 <KIO::SlaveInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#42 0xb758ee95 in KIO::SlaveInterface::finished (this=this@entry=0x82a98c0) at ./slaveinterface.moc:185
#43 0xb75908dd in KIO::SlaveInterface::dispatch (this=0x82a98c0, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:176
#44 0xb758dc5e in KIO::SlaveInterface::dispatch (this=0x82a98c0) at ../../kio/kio/slaveinterface.cpp:92
#45 0xb7581280 in KIO::Slave::gotInput (this=this@entry=0x82a98c0) at ../../kio/kio/slave.cpp:344
#46 0xb758142c in KIO::Slave::qt_static_metacall (_o=_o@entry=0x82a98c0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbfbd42e8) at ./slave.moc:57
#47 0xb5d6efc7 in QMetaObject::activate (sender=sender@entry=0x8735748, m=m@entry=0xb76a6190 <KIO::Connection::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#48 0xb74aaa75 in KIO::Connection::readyRead (this=0x8735748) at ./connection.moc:106
#49 0xb74ab220 in KIO::ConnectionPrivate::dequeue (this=0x83ad9a8) at ../../kio/kio/connection.cpp:82
#50 0xb5d6b77a in QMetaCallEvent::placeMetaCall (this=0x861e420, object=0x8735748) at kernel/qobject.cpp:524
#51 0xb5d7358b in QObject::event (this=0x8735748, e=0x861e420) at kernel/qobject.cpp:1194
#52 0xb62b6744 in QApplicationPrivate::notify_helper (this=0x81c6f90, receiver=0x8735748, e=0x861e420) at kernel/qapplication.cpp:4567
#53 0xb62bd223 in QApplication::notify (this=0xbfbd49a0, receiver=receiver@entry=0x8735748, e=e@entry=0x861e420) at kernel/qapplication.cpp:4353
#54 0xb6e03ff4 in KApplication::notify (this=0xbfbd49a0, receiver=0x8735748, event=0x861e420) at ../../kdeui/kernel/kapplication.cpp:311
#55 0xb5d59eda in QCoreApplication::notifyInternal (this=0xbfbd49a0, receiver=receiver@entry=0x8735748, event=event@entry=0x861e420) at kernel/qcoreapplication.cpp:946
#56 0xb5d5d6ad in sendEvent (event=0x861e420, receiver=0x8735748) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#57 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x8195f48) at kernel/qcoreapplication.cpp:1570
#58 0xb5d5dbbc in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#59 0xb5d89f6e in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#60 postEventSourceDispatch (s=0x81bebd8) at kernel/qeventdispatcher_glib.cpp:279
#61 0xb464382e in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#62 0xb4643bd8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#63 0xb4643c98 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#64 0xb5d898bf in QEventDispatcherGlib::processEvents (this=this@entry=0x819c3d0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#65 0xb636b32e in QGuiEventDispatcherGlib::processEvents (this=0x819c3d0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#66 0xb5d589f3 in QEventLoop::processEvents (this=this@entry=0xbfbd48e8, flags=...) at kernel/qeventloop.cpp:149
#67 0xb5d58d19 in QEventLoop::exec (this=this@entry=0xbfbd48e8, flags=...) at kernel/qeventloop.cpp:204
#68 0xb5d5e89e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#69 0xb62b4974 in QApplication::exec () at kernel/qapplication.cpp:3828
#70 0x0805d9ab in main (argc=5, argv=0xbfbd4a74) at /build/buildd/muon-2.0.65+git20131008/installer/main.cpp:72

Possible duplicates by query: bug 326426, bug 326422, bug 326419, bug 326418, bug 326411.

Reported using DrKonqi