Application: muon-updater (1.3.1 "Daring Dalek")
KDE Platform Version: 4.10.1
Qt Version: 4.8.2
Operating System: Linux 3.5.0-26-generic i686
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
Muon 1.3.1
KDE   4.10.1
ppa: kubuntu-ppa/backports

The crash can be reproduced sometimes.

-- Backtrace:
Application: Модуль Muon для управления обновлениями (muon-updater), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb3d26740 (LWP 4844))]

Thread 3 (Thread 0xb1332b40 (LWP 4846)):
#0  0xb77b6424 in __kernel_vsyscall ()
#1  0xb5d213eb in read () from /lib/i386-linux-gnu/libc.so.6
#2  0xb4d756ae in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb4d36bd2 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb4d37042 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb4d37201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb6b55de7 in QEventDispatcherGlib::processEvents (this=0xb0a00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb6b216ad in QEventLoop::processEvents (this=0xb1332240, flags=...) at kernel/qeventloop.cpp:149
#8  0xb6b21949 in QEventLoop::exec (this=0xb1332240, flags=...) at kernel/qeventloop.cpp:204
#9  0xb6a0aa1c in QThread::exec (this=0x9a5d378) at thread/qthread.cpp:501
#10 0xb6afecfd in QInotifyFileSystemWatcherEngine::run (this=0x9a5d378) at io/qfilesystemwatcher_inotify.cpp:248
#11 0xb6a0deb0 in QThreadPrivate::start (arg=0x9a5d378) at thread/qthread_unix.cpp:307
#12 0xb4e03d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0xb5d31d3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xafc0fb40 (LWP 4855)):
#0  0xb4decdcd in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb6a6c3e5 in do_gettime (frac=0xafc0efb0, sec=0xafc0efa8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb6b56726 in QTimerInfoList::updateCurrentTime (this=0xaf302074) at kernel/qeventdispatcher_unix.cpp:343
#4  0xb6b56a7a in QTimerInfoList::timerWait (this=0xaf302074, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#5  0xb6b55323 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xafc0f0bc) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb6b553bd in timerSourcePrepare (source=0xaf302040, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb4d36872 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb4d36faf in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb4d37201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb6b55de7 in QEventDispatcherGlib::processEvents (this=0xaf300468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0xb6b216ad in QEventLoop::processEvents (this=0xafc0f240, flags=...) at kernel/qeventloop.cpp:149
#12 0xb6b21949 in QEventLoop::exec (this=0xafc0f240, flags=...) at kernel/qeventloop.cpp:204
#13 0xb6a0aa1c in QThread::exec (this=0x9cd29d8) at thread/qthread.cpp:501
#14 0xb6afecfd in QInotifyFileSystemWatcherEngine::run (this=0x9cd29d8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb6a0deb0 in QThreadPrivate::start (arg=0x9cd29d8) at thread/qthread_unix.cpp:307
#16 0xb4e03d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb5d31d3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb3d26740 (LWP 4844)):
[KCrash Handler]
#7  appendTo (out=<optimized out>, a=...) at /build/buildd/qapt-1.3.1/src/backend.cpp:1516
#8  appendTo<QChar> (out=<optimized out>, p=...) at /usr/include/qt4/QtCore/qstringbuilder.h:403
#9  convertTo<QString> (this=<optimized out>) at /usr/include/qt4/QtCore/qstringbuilder.h:126
#10 operator QStringBuilder<QString, QLatin1String>::ConvertTo (this=<optimized out>) at /usr/include/qt4/QtCore/qstringbuilder.h:139
#11 QApt::Backend::reloadCache (this=0x380) at /build/buildd/qapt-1.3.1/src/backend.cpp:266
#12 0x0805b75e in UpdaterWidget::reload (this=0x9a5c4d0) at /build/buildd/muon-1.3.1/updater/UpdaterWidget.cpp:127
#13 0x08056234 in MainWindow::reload (this=0x9911b40) at /build/buildd/muon-1.3.1/updater/MainWindow.cpp:237
#14 0x08056c93 in MainWindow::workerEvent (this=0x9911b40, event=QApt::CacheUpdateFinished) at /build/buildd/muon-1.3.1/updater/MainWindow.cpp:179
#15 0xb6b39bb1 in QMetaObject::activate (sender=0x9bde3c8, m=0xb73e1cb8, local_signal_index=4, argv=0xbf95a0f8) at kernel/qobject.cpp:3547
#16 0xb73d0805 in QApt::Backend::workerEvent (this=0x9bde3c8, _t1=QApt::CacheUpdateFinished) at /build/buildd/qapt-1.3.1/obj-i686-linux-gnu/src/moc_backend.cxx:265
#17 0xb73aa639 in QApt::Backend::emitWorkerEvent (this=0x9bde3c8, event=2) at /build/buildd/qapt-1.3.1/src/backend.cpp:1493
#18 0xb73d0ae3 in qt_static_metacall (_a=0xbf95a238, _id=42, _o=0x9bde3c8, _c=<optimized out>) at /build/buildd/qapt-1.3.1/obj-i686-linux-gnu/src/moc_backend.cxx:188
#19 QApt::Backend::qt_static_metacall (_o=0x9bde3c8, _c=QMetaObject::InvokeMetaMethod, _id=42, _a=0xbf95a238) at /build/buildd/qapt-1.3.1/obj-i686-linux-gnu/src/moc_backend.cxx:134
#20 0xb6b39bb1 in QMetaObject::activate (sender=0x9bd3d38, m=0xb73e1e38, local_signal_index=8, argv=0xbf95a238) at kernel/qobject.cpp:3547
#21 0xb73d1a45 in OrgKubuntuQaptworkerInterface::workerEvent (this=0x9bd3d38, _t1=2) at /build/buildd/qapt-1.3.1/obj-i686-linux-gnu/src/workerdbus.moc:242
#22 0xb73d28f5 in OrgKubuntuQaptworkerInterface::qt_static_metacall (_o=0x9bd3d38, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbf95a4cc) at /build/buildd/qapt-1.3.1/obj-i686-linux-gnu/src/workerdbus.moc:108
#23 0xb73d353c in OrgKubuntuQaptworkerInterface::qt_metacall (this=0x9bd3d38, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbf95a4cc) at /build/buildd/qapt-1.3.1/obj-i686-linux-gnu/src/workerdbus.moc:176
#24 0xb57e8a38 in QDBusConnectionPrivate::deliverCall (this=0x9a581d8, object=0x9bd3d38, msg=..., metaTypes=..., slotIdx=896) at qdbusintegrator.cpp:947
#25 0xb57f2c8d in QDBusCallDeliveryEvent::placeMetaCall (this=0x9d00c68, object=0x9bd3d38) at qdbusintegrator_p.h:103
#26 0xb6b3e17b in QObject::event (this=0x9bd3d38, e=0x9d00c68) at kernel/qobject.cpp:1195
#27 0xb600cdf4 in notify_helper (e=0x9d00c68, receiver=0x9bd3d38, this=0x990c0d8) at kernel/qapplication.cpp:4556
#28 QApplicationPrivate::notify_helper (this=0x990c0d8, receiver=0x9bd3d38, e=0x9d00c68) at kernel/qapplication.cpp:4528
#29 0xb601215d in QApplication::notify (this=0x9d00c68, receiver=0x9bd3d38, e=0x9d00c68) at kernel/qapplication.cpp:4285
#30 0xb7143e61 in KApplication::notify (this=0xbf95cbf0, receiver=0x9bd3d38, event=0x9d00c68) at ../../kdeui/kernel/kapplication.cpp:311
#31 0xb6b22e0e in QCoreApplication::notifyInternal (this=0xbf95cbf0, receiver=0x9bd3d38, event=0x9d00c68) at kernel/qcoreapplication.cpp:915
#32 0xb6b26f68 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#33 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x98e20b0) at kernel/qcoreapplication.cpp:1539
#34 0xb6b2729c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1432
#35 0xb6b55994 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#36 postEventSourceDispatch (s=0x98ff3d0) at kernel/qeventdispatcher_glib.cpp:279
#37 0xb4d36d86 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#38 0xb4d37125 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#39 0xb4d37201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0xb6b55d87 in QEventDispatcherGlib::processEvents (this=0x98e2e78, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#41 0xb60c5a1a in QGuiEventDispatcherGlib::processEvents (this=0x98e2e78, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0xb6b27533 in QCoreApplication::processEvents (flags=...) at kernel/qcoreapplication.cpp:1102
#43 0xb73b6f83 in QApt::CacheBuildProgress::Update (this=0x9be0f1c) at /build/buildd/qapt-1.3.1/src/cache.cpp:36
#44 0xb51e6f76 in OpProgress::Progress(unsigned long long) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
#45 0xb5246a4c in pkgCacheGenerator::MergeList(pkgCacheGenerator::ListParser&, pkgCache::VerIterator*) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
#46 0xb52a3847 in debTranslationsIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
#47 0xb523f58c in ?? () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
#48 0xb52425d8 in pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
#49 0xb5237c00 in pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
#50 0xb523809d in pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
#51 0xb73b6e69 in QApt::Cache::open (this=0x9a70d70) at /build/buildd/qapt-1.3.1/src/cache.cpp:85
#52 0xb73b1c5a in QApt::Backend::reloadCache (this=0x9bde3c8) at /build/buildd/qapt-1.3.1/src/backend.cpp:193
#53 0xb73b31ec in QApt::Backend::init (this=0x9bde3c8) at /build/buildd/qapt-1.3.1/src/backend.cpp:183
#54 0xb7783b9e in MuonMainWindow::initObject (this=0x9911b40) at /build/buildd/muon-1.3.1/libmuon/MuonMainWindow.cpp:73
#55 0x08055190 in MainWindow::initObject (this=0x9911b40) at /build/buildd/muon-1.3.1/updater/MainWindow.cpp:108
#56 0xb6b39bb1 in QMetaObject::activate (sender=0x9bd5000, m=0xb6c7fed8, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#57 0xb6b42b55 in QSingleShotTimer::timeout (this=0x9bd5000) at .moc/release-shared/qtimer.moc:97
#58 0xb6b42c3c in QSingleShotTimer::timerEvent (this=0x9bd5000) at kernel/qtimer.cpp:317
#59 0xb6b3dfc4 in QObject::event (this=0x9bd5000, e=0xbf95c8ec) at kernel/qobject.cpp:1157
#60 0xb600cdf4 in notify_helper (e=0xbf95c8ec, receiver=0x9bd5000, this=0x990c0d8) at kernel/qapplication.cpp:4556
#61 QApplicationPrivate::notify_helper (this=0x990c0d8, receiver=0x9bd5000, e=0xbf95c8ec) at kernel/qapplication.cpp:4528
#62 0xb601215d in QApplication::notify (this=0xbf95c8ec, receiver=0x9bd5000, e=0xbf95c8ec) at kernel/qapplication.cpp:4285
#63 0xb7143e61 in KApplication::notify (this=0xbf95cbf0, receiver=0x9bd5000, event=0xbf95c8ec) at ../../kdeui/kernel/kapplication.cpp:311
#64 0xb6b22e0e in QCoreApplication::notifyInternal (this=0xbf95cbf0, receiver=0x9bd5000, event=0xbf95c8ec) at kernel/qcoreapplication.cpp:915
#65 0xb6b57e90 in sendEvent (event=0xbf95c8ec, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#66 QTimerInfoList::activateTimers (this=0x98ff44c) at kernel/qeventdispatcher_unix.cpp:611
#67 0xb6b555f8 in timerSourceDispatch (source=0x98ff418) at kernel/qeventdispatcher_glib.cpp:186
#68 timerSourceDispatch (source=0x98ff418) at kernel/qeventdispatcher_glib.cpp:180
#69 0xb4d36d86 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#70 0xb4d37125 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#71 0xb4d37201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#72 0xb6b55d87 in QEventDispatcherGlib::processEvents (this=0x98e2e78, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#73 0xb60c5a1a in QGuiEventDispatcherGlib::processEvents (this=0x98e2e78, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#74 0xb6b216ad in QEventLoop::processEvents (this=0xbf95cb54, flags=...) at kernel/qeventloop.cpp:149
#75 0xb6b21949 in QEventLoop::exec (this=0xbf95cb54, flags=...) at kernel/qeventloop.cpp:204
#76 0xb6b2734a in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#77 0xb600a9c4 in QApplication::exec () at kernel/qapplication.cpp:3817
#78 0x08053e26 in main (argc=162882840, argv=0xb5de9470) at /build/buildd/muon-1.3.1/updater/main.cpp:61

Possible duplicates by query: bug 305277, bug 304064.

Reported using DrKonqi