https://bugs.kde.org/show_bug.cgi?id=326966

            Bug ID: 326966
           Summary: Muon Crashed
    Classification: Unclassified
           Product: muon
           Version: 2.1.0
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: discover
          Assignee: echidnaman@kubuntu.org
          Reporter: conromia@msn.com

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:

Browsing the applications then hit the back button and it crashed. Done this a
few times.

The crash can be reproduced sometimes.

-- 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 0x7f714e5c07c0 (LWP 2110))]

Thread 7 (Thread 0x7f7133c3b700 (LWP 2111)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f7147da706b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f7147da70a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f7143f6af6e in start_thread (arg=0x7f7133c3b700) at
pthread_create.c:311
#4  0x00007f714b28d9cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7f70b2950700 (LWP 2112)):
#0  0x00007f7143ad20ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7143ad23c9 in g_mutex_unlock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7143a92119 in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7143a9263b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7143a927ac in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f714ba06a76 in QEventDispatcherGlib::processEvents
(this=0x7f70ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f714b9d85ef in QEventLoop::processEvents
(this=this@entry=0x7f70b294fd70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f714b9d88e5 in QEventLoop::exec (this=this@entry=0x7f70b294fd70,
flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f714b8d788f in QThread::exec (this=this@entry=0x9a4f60) at
thread/qthread.cpp:542
#9  0x00007f714b9b9d13 in QInotifyFileSystemWatcherEngine::run (this=0x9a4f60)
at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f714b8d9f2f in QThreadPrivate::start (arg=0x9a4f60) at
thread/qthread_unix.cpp:338
#11 0x00007f7143f6af6e in start_thread (arg=0x7f70b2950700) at
pthread_create.c:311
#12 0x00007f714b28d9cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f70b1241700 (LWP 2113)):
#0  0x00007f714b27f6bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7143ad1670 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7143a921cc in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7143a9263b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7143a927ac in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f714ba06a76 in QEventDispatcherGlib::processEvents
(this=0x7f70a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f714b9d85ef in QEventLoop::processEvents
(this=this@entry=0x7f70b1240db0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f714b9d88e5 in QEventLoop::exec (this=this@entry=0x7f70b1240db0,
flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f714b8d788f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:542
#9  0x00007f714b8d9f2f in QThreadPrivate::start (arg=0x123e150) at
thread/qthread_unix.cpp:338
#10 0x00007f7143f6af6e in start_thread (arg=0x7f70b1241700) at
pthread_create.c:311
#11 0x00007f714b28d9cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f70a6baa700 (LWP 2114)):
#0  0x00007f714b27f6bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7143ad1670 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7143a921cc in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7143a9263b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7143a927ac in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f714ba06a76 in QEventDispatcherGlib::processEvents
(this=0x7f70980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f714b9d85ef in QEventLoop::processEvents
(this=this@entry=0x7f70a6ba9db0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f714b9d88e5 in QEventLoop::exec (this=this@entry=0x7f70a6ba9db0,
flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f714b8d788f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:542
#9  0x00007f714b8d9f2f in QThreadPrivate::start (arg=0xcd08e0) at
thread/qthread_unix.cpp:338
#10 0x00007f7143f6af6e in start_thread (arg=0x7f70a6baa700) at
pthread_create.c:311
#11 0x00007f714b28d9cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f70953f7700 (LWP 2291)):
#0  0x00007f7143f6d055 in __GI___pthread_mutex_lock (mutex=0x7f708476bc70) at
pthread_mutex_lock.c:95
#1  0x00007f7143ad23a1 in g_mutex_lock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7143a91d59 in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7143a925c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7143a927ac in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f714ba06a76 in QEventDispatcherGlib::processEvents
(this=0x7f7084b8d060, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f714b9d85ef in QEventLoop::processEvents
(this=this@entry=0x7f70953f6d90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f714b9d88e5 in QEventLoop::exec (this=this@entry=0x7f70953f6d90,
flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f714b8d788f in QThread::exec (this=this@entry=0x42c34c0) at
thread/qthread.cpp:542
#9  0x00007f714d5fb19e in QDeclarativePixmapReader::run (this=0x42c34c0) at
util/qdeclarativepixmapcache.cpp:576
#10 0x00007f714b8d9f2f in QThreadPrivate::start (arg=0x42c34c0) at
thread/qthread_unix.cpp:338
#11 0x00007f7143f6af6e in start_thread (arg=0x7f70953f7700) at
pthread_create.c:311
#12 0x00007f714b28d9cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f70a63a9700 (LWP 2292)):
#0  0x00007f714b280f7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7143a926a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7143a927ac in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f714ba06a76 in QEventDispatcherGlib::processEvents
(this=0x7f709c002a50, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f714b9d85ef in QEventLoop::processEvents
(this=this@entry=0x7f70a63a8db0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f714b9d88e5 in QEventLoop::exec (this=this@entry=0x7f70a63a8db0,
flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f714b8d788f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:542
#7  0x00007f714b8d9f2f in QThreadPrivate::start (arg=0x7f7084b91dd0) at
thread/qthread_unix.cpp:338
#8  0x00007f7143f6af6e in start_thread (arg=0x7f70a63a9700) at
pthread_create.c:311
#9  0x00007f714b28d9cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f714e5c07c0 (LWP 2110)):
[KCrash Handler]
#5  QApt::Cache::depCache (this=0xffb077e8fb894853) at
/build/buildd/qapt-2.0.65/src/cache.cpp:86
#6  0x00007f70a5150cf2 in QApt::Package::state (this=0x174dad0) at
/build/buildd/qapt-2.0.65/src/package.cpp:717
#7  0x00007f70973d9d50 in Application::state (this=0x7f7084216bd0) at
/build/buildd/muon-2.1.0/libmuon/backends/ApplicationBackend/Application.cpp:490
#8  0x00007f714e1ce8a4 in ResourcesProxyModel::filterAcceptsRow (this=0xfaff50,
sourceRow=<optimized out>, sourceParent=...) at
/build/buildd/muon-2.1.0/libmuon/resources/ResourcesProxyModel.cpp:183
#9  0x00007f714c9444e6 in QSortFilterProxyModelPrivate::source_items_inserted
(this=this@entry=0xfaf870, source_parent=..., start=<optimized out>,
end=<optimized out>, orient=orient@entry=Qt::Vertical) at
itemviews/qsortfilterproxymodel.cpp:769
#10 0x00007f714c9446df in QSortFilterProxyModelPrivate::_q_sourceRowsInserted
(this=0xfaf870, source_parent=..., start=<optimized out>, end=<optimized out>)
at itemviews/qsortfilterproxymodel.cpp:1297
#11 0x00007f714b9eda58 in QMetaObject::activate (sender=sender@entry=0x94c5a0,
m=m@entry=0x7f714bd3c6a0 <QAbstractItemModel::staticMetaObject>,
local_signal_index=local_signal_index@entry=5, argv=argv@entry=0x7fffd89463f0)
at kernel/qobject.cpp:3539
#12 0x00007f714ba376c4 in QAbstractItemModel::rowsInserted
(this=this@entry=0x94c5a0, _t1=..., _t2=345, _t3=43658) at
.moc/release-shared/moc_qabstractitemmodel.cpp:197
#13 0x00007f714b9d3b0e in QAbstractItemModel::endInsertRows
(this=this@entry=0x94c5a0) at kernel/qabstractitemmodel.cpp:2433
#14 0x00007f714e1cc8f7 in ResourcesModel::resetBackend (this=0x94c5a0,
backend=0x13ff870) at
/build/buildd/muon-2.1.0/libmuon/resources/ResourcesModel.cpp:263
#15 0x00007f714e1bf4c5 in ResourcesModel::qt_static_metacall (_o=0x94c5a0,
_id=-1523031984, _a=0x7f70a4e49b90 <pkgCache::PkgIterator::operator++()>,
_c=<optimized out>) at
/build/buildd/muon-2.1.0/obj-x86_64-linux-gnu/libmuon/moc_ResourcesModel.cpp:99
#16 0x00007f714b9eda58 in QMetaObject::activate (sender=sender@entry=0x13ff870,
m=m@entry=0x7f714e3e5500 <AbstractResourcesBackend::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at
kernel/qobject.cpp:3539
#17 0x00007f714e1be2f0 in AbstractResourcesBackend::fetchingChanged
(this=this@entry=0x13ff870) at
/build/buildd/muon-2.1.0/obj-x86_64-linux-gnu/libmuon/moc_AbstractResourcesBackend.cpp:156
#18 0x00007f70973d2d95 in ApplicationBackend::setFetching (this=0x13ff870,
f=<optimized out>) at
/build/buildd/muon-2.1.0/libmuon/backends/ApplicationBackend/ApplicationBackend.cpp:630
#19 0x00007f70973d3a53 in ApplicationBackend::reload
(this=this@entry=0x13ff870) at
/build/buildd/muon-2.1.0/libmuon/backends/ApplicationBackend/ApplicationBackend.cpp:171
#20 0x00007f70973d3ede in ApplicationBackend::transactionEvent (this=0x13ff870,
status=<optimized out>) at
/build/buildd/muon-2.1.0/libmuon/backends/ApplicationBackend/ApplicationBackend.cpp:263
#21 0x00007f70973d1f1b 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
#22 0x00007f714b9eda58 in QMetaObject::activate (sender=0x49c98d0,
m=m@entry=0x7f70a53869c0 <QApt::Transaction::staticMetaObject>,
local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffd8946810)
at kernel/qobject.cpp:3539
#23 0x00007f70a51712e1 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
#24 0x00007f70a516444e in QApt::Transaction::updateProperty (this=0x49c98d0,
type=-1523031984, variant=...) at
/build/buildd/qapt-2.0.65/src/transaction.cpp:518
#25 0x00007f70a5171974 in QApt::Transaction::qt_static_metacall (_o=0x49c98d0,
_c=<optimized out>, _id=<optimized out>, _a=0x7fffd8946a30) at
/build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transaction.cxx:164
#26 0x00007f714b9eda58 in QMetaObject::activate (sender=sender@entry=0x49ca1b0,
m=m@entry=0x7f70a5386aa0
<OrgKubuntuQaptworkerTransactionInterface::staticMetaObject>,
local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7fffd8946a30)
at kernel/qobject.cpp:3539
#27 0x00007f70a51723d6 in
OrgKubuntuQaptworkerTransactionInterface::propertyChanged
(this=this@entry=0x49ca1b0, _t1=3, _t2=...) at
/build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:246
#28 0x00007f70a517277c in
OrgKubuntuQaptworkerTransactionInterface::qt_static_metacall
(_o=_o@entry=0x49ca1b0, _c=_c@entry=QMetaObject::InvokeMetaMethod,
_id=_id@entry=4, _a=_a@entry=0x7fffd8946cf0) at
/build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:111
#29 0x00007f70a51730f7 in OrgKubuntuQaptworkerTransactionInterface::qt_metacall
(this=0x49ca1b0, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fffd8946cf0) at
/build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:164
#30 0x00007f714a78ae36 in QDBusConnectionPrivate::deliverCall (this=0x12414d0,
object=0x49ca1b0, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:951
#31 0x00007f714b9f1dce in QObject::event (this=0x49ca1b0, e=<optimized out>) at
kernel/qobject.cpp:1194
#32 0x00007f714c3cadfc in QApplicationPrivate::notify_helper
(this=this@entry=0x7e08c0, receiver=receiver@entry=0x49ca1b0,
e=e@entry=0x3d5e1f0) at kernel/qapplication.cpp:4567
#33 0x00007f714c3d1470 in QApplication::notify (this=0x7fffd8947490,
receiver=0x49ca1b0, e=0x3d5e1f0) at kernel/qapplication.cpp:4353
#34 0x00007f714d0d4a6a in KApplication::notify(QObject*, QEvent*) () from
/usr/lib/libkdeui.so.5
#35 0x00007f714b9d98bd in QCoreApplication::notifyInternal
(this=0x7fffd8947490, receiver=receiver@entry=0x49ca1b0,
event=event@entry=0x3d5e1f0) at kernel/qcoreapplication.cpp:946
#36 0x00007f714b9dce1f in sendEvent (event=0x3d5e1f0, receiver=0x49ca1b0) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#37 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0,
event_type=event_type@entry=0, data=0x7971f0) at
kernel/qcoreapplication.cpp:1570
#38 0x00007f714b9dd2c3 in QCoreApplication::sendPostedEvents
(receiver=receiver@entry=0x0, event_type=event_type@entry=0) at
kernel/qcoreapplication.cpp:1463
#39 0x00007f714ba07073 in sendPostedEvents () at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#40 postEventSourceDispatch (s=0x7e20f0) at
kernel/qeventdispatcher_glib.cpp:279
#41 0x00007f7143a923b6 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007f7143a92708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f7143a927ac in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f714ba06a55 in QEventDispatcherGlib::processEvents (this=0x798ad0,
flags=...) at kernel/qeventdispatcher_glib.cpp:424
#45 0x00007f714c46c9d6 in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#46 0x00007f714b9d85ef in QEventLoop::processEvents
(this=this@entry=0x7fffd89473a0, flags=...) at kernel/qeventloop.cpp:149
#47 0x00007f714b9d88e5 in QEventLoop::exec (this=this@entry=0x7fffd89473a0,
flags=...) at kernel/qeventloop.cpp:204
#48 0x00007f714b9dde5b in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1218
#49 0x00007f714c3c934c in QApplication::exec () at kernel/qapplication.cpp:3828
#50 0x000000000040b4dc in main (argc=1, argv=0x7fffd89475e8) at
/build/buildd/muon-2.1.0/discover/main.cpp:86

Possible duplicates by query: bug 326448, bug 326307.

Reported using DrKonqi

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