Application: muon-updater (1.3.1 "Daring Dalek")
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-32-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed: I attempted to run the software update. nothing different from normal usage?

The crash does not seem to be reproducible.

-- Backtrace:
Application: Muon Update Manager (muon-updater), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbaeaf07780 (LWP 2527))]

Thread 3 (Thread 0x7fbad5fca700 (LWP 2528)):
#0  0x00007fbae3a5b05d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7fbad0000a60) at pthread_mutex_unlock.c:290
#2  0x00007fbae31ce5d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbae319302a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbae3193164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbae929b426 in QEventDispatcherGlib::processEvents (this=0x7fbad00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fbae926ac82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fbae926aed7 in QEventLoop::exec (this=0x7fbad5fc9dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fbae9169fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fbae924a9ff in QInotifyFileSystemWatcherEngine::run (this=0x13a20b0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fbae916cfcb in QThreadPrivate::start (arg=0x13a20b0) at thread/qthread_unix.cpp:298
#11 0x00007fbae3a57e9a in start_thread (arg=0x7fbad5fca700) at pthread_create.c:308
#12 0x00007fbae7e57cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fbacfda0700 (LWP 2534)):
#0  0x00007fbae31ce339 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fbae31ce599 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbae3192b4e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbae3192fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbae3193164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbae929b426 in QEventDispatcherGlib::processEvents (this=0x7fbac40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fbae926ac82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fbae926aed7 in QEventLoop::exec (this=0x7fbacfd9fdd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fbae9169fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fbae924a9ff in QInotifyFileSystemWatcherEngine::run (this=0x16d6240) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fbae916cfcb in QThreadPrivate::start (arg=0x16d6240) at thread/qthread_unix.cpp:298
#11 0x00007fbae3a57e9a in start_thread (arg=0x7fbacfda0700) at pthread_create.c:308
#12 0x00007fbae7e57cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fbaeaf07780 (LWP 2527)):
[KCrash Handler]
#6  QApt::Package::state (this=0x16d84e0) at /build/buildd/qapt-1.3.1/src/package.cpp:1315
#7  0x00007fbaea11a4d9 in QApt::Backend::commitChanges (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/backend.cpp:1021
#8  0x0000000000410dfb in MainWindow::startCommit (this=0x1367250) at /build/buildd/muon-1.3.1/updater/MainWindow.cpp:281
#9  0x00007fbae9280281 in QMetaObject::activate (sender=0x151c5a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb8e4c4f0) at kernel/qobject.cpp:3547
#10 0x00007fbae85e8132 in QAction::triggered (this=<optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:277
#11 0x00007fbae85e831f in QAction::activate (this=0x151c5a0, event=<optimized out>) at kernel/qaction.cpp:1257
#12 0x00007fbae89bdd4a in QAbstractButtonPrivate::click (this=0x1548a60) at widgets/qabstractbutton.cpp:530
#13 0x00007fbae89bdffc in QAbstractButton::mouseReleaseEvent (this=0x1557800, e=0x7fffb8e4cdd0) at widgets/qabstractbutton.cpp:1123
#14 0x00007fbae8a7b5da in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:718
#15 0x00007fbae863f144 in QWidget::event (this=0x1557800, event=0x7fffb8e4cdd0) at kernel/qwidget.cpp:8362
#16 0x00007fbae85ee894 in notify_helper (e=0x7fffb8e4cdd0, receiver=0x1557800, this=0x113a660) at kernel/qapplication.cpp:4559
#17 QApplicationPrivate::notify_helper (this=0x113a660, receiver=0x1557800, e=0x7fffb8e4cdd0) at kernel/qapplication.cpp:4531
#18 0x00007fbae85f40bf in QApplication::notify (this=<optimized out>, receiver=0x1557800, e=0x7fffb8e4cdd0) at kernel/qapplication.cpp:4102
#19 0x00007fbae9cd13f6 in KApplication::notify (this=0x7fffb8e50950, receiver=0x1557800, event=0x7fffb8e4cdd0) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007fbae926be9c in QCoreApplication::notifyInternal (this=0x7fffb8e50950, receiver=0x1557800, event=0x7fffb8e4cdd0) at kernel/qcoreapplication.cpp:876
#21 0x00007fbae85ef862 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#22 QApplicationPrivate::sendMouseEvent (receiver=0x1557800, event=0x7fffb8e4cdd0, alienWidget=0x1557800, nativeWidget=0x1535f00, buttonDown=0x1557800, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3170
#23 0x00007fbae866ebf5 in QETWidget::translateMouseEvent (this=0x1535f00, event=<optimized out>) at kernel/qapplication_x11.cpp:4617
#24 0x00007fbae866dbae in QApplication::x11ProcessEvent (this=0x7fffb8e50950, event=0x7fffb8e4d6a0) at kernel/qapplication_x11.cpp:3732
#25 0x00007fbae86970d2 in x11EventSourceDispatch (s=0x113ea70, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#26 0x00007fbae3192d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fbae31930a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007fbae3193164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007fbae929b3bf in QEventDispatcherGlib::processEvents (this=0x110f070, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#30 0x00007fbae8696d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#31 0x00007fbae927010f in QCoreApplication::processEvents (flags=...) at kernel/qcoreapplication.cpp:1063
#32 0x00007fbaea121763 in QApt::CacheBuildProgress::Update (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/cache.cpp:36
#33 0x00007fbae54a9fb2 in pkgCacheGenerator::MergeList(pkgCacheGenerator::ListParser&, pkgCache::VerIterator*) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#34 0x00007fbae55022de in debPackagesIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#35 0x00007fbae54a2e37 in ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#36 0x00007fbae54a5cb4 in pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#37 0x00007fbae549bc2a in pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#38 0x00007fbae549c054 in pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#39 0x00007fbaea12167a in QApt::Cache::open (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/cache.cpp:85
#40 0x00007fbaea11c9c2 in QApt::Backend::reloadCache (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/backend.cpp:193
#41 0x00000000004161d6 in UpdaterWidget::reload (this=0x13eb980) at /build/buildd/muon-1.3.1/updater/UpdaterWidget.cpp:127
#42 0x00000000004113c0 in MainWindow::reload (this=0x1367250) at /build/buildd/muon-1.3.1/updater/MainWindow.cpp:237
#43 0x0000000000411d4e in MainWindow::workerEvent (this=0x1367250, event=QApt::CacheUpdateFinished) at /build/buildd/muon-1.3.1/updater/MainWindow.cpp:179
#44 0x00007fbae9280281 in QMetaObject::activate (sender=0x1544e70, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb8e4f8d0) at kernel/qobject.cpp:3547
#45 0x00007fbaea139a91 in QApt::Backend::workerEvent (this=<optimized out>, _t1=QApt::CacheUpdateFinished) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/moc_backend.cxx:265
#46 0x00007fbae9280281 in QMetaObject::activate (sender=0x1532160, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb8e4fa20) at kernel/qobject.cpp:3547
#47 0x00007fbaea13aa51 in OrgKubuntuQaptworkerInterface::workerEvent (this=<optimized out>, _t1=2) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:242
#48 0x00007fbaea13b6e6 in OrgKubuntuQaptworkerInterface::qt_static_metacall (_o=0x1532160, _c=<optimized out>, _id=8, _a=0x7fffb8e4ff50) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:108
#49 0x00007fbaea13c20b in OrgKubuntuQaptworkerInterface::qt_metacall (this=0x1532160, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffb8e4ff50) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:176
#50 0x00007fbae72ee37b in QDBusConnectionPrivate::deliverCall (this=0x13a45a0, object=0x1532160, msg=..., metaTypes=..., slotIdx=13) at qdbusintegrator.cpp:947
#51 0x00007fbae9285446 in QObject::event (this=0x1532160, e=<optimized out>) at kernel/qobject.cpp:1195
#52 0x00007fbae85ee894 in notify_helper (e=0x2451430, receiver=0x1532160, this=0x113a660) at kernel/qapplication.cpp:4559
#53 QApplicationPrivate::notify_helper (this=0x113a660, receiver=0x1532160, e=0x2451430) at kernel/qapplication.cpp:4531
#54 0x00007fbae85f3713 in QApplication::notify (this=0x7fffb8e50950, receiver=0x1532160, e=0x2451430) at kernel/qapplication.cpp:4420
#55 0x00007fbae9cd13f6 in KApplication::notify (this=0x7fffb8e50950, receiver=0x1532160, event=0x2451430) at ../../kdeui/kernel/kapplication.cpp:311
#56 0x00007fbae926be9c in QCoreApplication::notifyInternal (this=0x7fffb8e50950, receiver=0x1532160, event=0x2451430) at kernel/qcoreapplication.cpp:876
#57 0x00007fbae926fc6a in sendEvent (event=0x2451430, receiver=0x1532160) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#58 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x110d790) at kernel/qcoreapplication.cpp:1500
#59 0x00007fbae929af93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#60 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#61 0x00007fbae3192d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007fbae31930a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007fbae3193164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#64 0x00007fbae929b3bf in QEventDispatcherGlib::processEvents (this=0x110f070, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#65 0x00007fbae8696d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#66 0x00007fbae926ac82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#67 0x00007fbae926aed7 in QEventLoop::exec (this=0x7fffb8e508e0, flags=...) at kernel/qeventloop.cpp:204
#68 0x00007fbae926ff67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#69 0x000000000040f437 in main (argc=1, argv=0x7fffb8e50bc8) at /build/buildd/muon-1.3.1/updater/main.cpp:61

Reported using DrKonqi