Bug 322665

Application: muon-installer (2.0.1)
KDE Platform Version: 4.10.5
Qt Version: 4.8.4
Operating System: Linux 3.8.0-26-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
- What I was doing when the application crashed:
I was attempting to search for a piece of software, so I clicked in the search box and started typing. It crashed pretty quickly and upon opening it again, it would crash almost the moment I clicked in the search box. I was able to repeat this a half dozen times in a row.

The crash can be reproduced every time.

-- Backtrace:
Application: Muon Software Center (muon-installer), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc4198d47c0 (LWP 4000))]

Thread 2 (Thread 0x7fc4034b1700 (LWP 4001)):
#0  0x00007fc4163983cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc4112de1dc in g_main_context_poll (n_fds=1, fds=0x7fc3fc002c00, timeout=-1, context=0x7fc3fc0009a0, priority=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3995
#2  g_main_context_iterate (context=context@entry=0x7fc3fc0009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3696
#3  0x00007fc4112de304 in g_main_context_iteration (context=0x7fc3fc0009a0, may_block=1) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3762
#4  0x00007fc416b1d036 in QEventDispatcherGlib::processEvents (this=0x7fc3fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fc416aed38f in QEventLoop::processEvents (this=this@entry=0x7fc4034b0d90, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fc416aed618 in QEventLoop::exec (this=this@entry=0x7fc4034b0d90, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fc4169ef410 in QThread::exec (this=this@entry=0xb6d3d0) at thread/qthread.cpp:542
#8  0x00007fc416aceedf in QInotifyFileSystemWatcherEngine::run (this=0xb6d3d0) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007fc4169f1bec in QThreadPrivate::start (arg=0xb6d3d0) at thread/qthread_unix.cpp:338
#10 0x00007fc4117b0f8e in start_thread (arg=0x7fc4034b1700) at pthread_create.c:311
#11 0x00007fc4163a4e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fc4198d47c0 (LWP 4000)):
[KCrash Handler]
#6  KNSResource::setStatus (this=this@entry=0x0, status=KNS3::Entry::Downloadable) at /build/buildd/muon-2.0.1/libmuon/backends/KNSBackend/KNSResource.cpp:62
#7  0x00007fc4028f869b in KNSResource::setEntry (this=this@entry=0x0, entry=...) at /build/buildd/muon-2.0.1/libmuon/backends/KNSBackend/KNSResource.cpp:125
#8  0x00007fc4028f537e in KNSBackend::receivedEntries (this=0xba4de0, entries=...) at /build/buildd/muon-2.0.1/libmuon/backends/KNSBackend/KNSBackend.cpp:176
#9  0x00007fc416b030ef in QMetaObject::activate (sender=0xa3b1b0, m=m@entry=0x7fc4028e8280 <KNS3::DownloadManager::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff99d8bbd0) at kernel/qobject.cpp:3539
#10 0x00007fc40269d172 in KNS3::DownloadManager::searchResult (this=<optimized out>, _t1=...) at ./downloadmanager.moc:113
#11 0x00007fc40269d3fb in KNS3::DownloadManager::Private::_k_slotEntriesLoaded (this=0xcc0150, entries=...) at ../../../knewstuff/knewstuff3/downloadmanager.cpp:117
#12 0x00007fc416b030ef in QMetaObject::activate (sender=sender@entry=0xcd7ab0, m=m@entry=0x7fc4028e8700 <KNS3::Engine::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fff99d8bdb0) at kernel/qobject.cpp:3539
#13 0x00007fc4026a2f05 in KNS3::Engine::signalEntriesLoaded (this=this@entry=0xcd7ab0, _t1=...) at ./engine.moc:199
#14 0x00007fc4026a48ba in KNS3::Engine::slotEntriesLoaded (this=0xcd7ab0, request=..., entries=...) at ../../../knewstuff/knewstuff3/core/engine.cpp:280
#15 0x00007fc4026a62f5 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./engine.moc:129
#16 KNS3::Engine::qt_static_metacall (_o=0xcd7ab0, _c=QMetaObject::ReadProperty, _id=35693136, _a=0x1d7ebb0) at ./engine.moc:103
#17 0x00007fc416b030ef in QMetaObject::activate (sender=sender@entry=0xf85060, m=m@entry=0x7fc4028e8920 <KNS3::Provider::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff99d8bf90) at kernel/qobject.cpp:3539
#18 0x00007fc4026b2bca in KNS3::Provider::loadingFinished (this=this@entry=0xf85060, _t1=..., _t2=...) at ./provider.moc:125
#19 0x00007fc4026c747b in KNS3::AtticaProvider::categoryContentsLoaded (this=0xf85060, job=<optimized out>) at ../../../knewstuff/knewstuff3/attica/atticaprovider.cpp:230
#20 0x00007fc416b030ef in QMetaObject::activate (sender=0x22fa650, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff99d8c1e0) at kernel/qobject.cpp:3539
#21 0x00007fc41206cb3f in Attica::BaseJob::finished(Attica::BaseJob*) () from /usr/lib/x86_64-linux-gnu/libattica.so.0.4
#22 0x00007fc41206cd2d in Attica::BaseJob::dataFinished() () from /usr/lib/x86_64-linux-gnu/libattica.so.0.4
#23 0x00007fc416b030ef in QMetaObject::activate (sender=0x1f5c460, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#24 0x00007fc416af6ad7 in QMetaMethod::invoke (this=this@entry=0x7fff99d8c640, object=object@entry=0x1f5c460, connectionType=Qt::DirectConnection, connectionType@entry=Qt::AutoConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#25 0x00007fc416af8eac in QMetaObject::invokeMethod (obj=obj@entry=0x1f5c460, member=member@entry=0x7fc419011365 "finished", type=type@entry=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#26 0x00007fc418eac4bc in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., type=Qt::AutoConnection, member=0x7fc419011365 "finished", obj=0x1f5c460) at /usr/include/qt4/QtCore/qobjectdefs.h:418
#27 KDEPrivate::AccessManagerReply::emitFinished (this=this@entry=0x1f5c460, state=state@entry=true, type=type@entry=Qt::AutoConnection) at ../../kio/kio/accessmanagerreply_p.cpp:484
#28 0x00007fc418eae4f5 in KDEPrivate::AccessManagerReply::slotResult (this=0x1f5c460, kJob=0x22bbd90) at ../../kio/kio/accessmanagerreply_p.cpp:427
#29 0x00007fc416b030ef in QMetaObject::activate (sender=sender@entry=0x22bbd90, m=m@entry=0x7fc4172fe4e0 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fff99d8cbf0) at kernel/qobject.cpp:3539
#30 0x00007fc416f71a72 in KJob::result (this=this@entry=0x22bbd90, _t1=_t1@entry=0x22bbd90) at ./kjob.moc:208
#31 0x00007fc416f71ab0 in KJob::emitResult (this=this@entry=0x22bbd90) at ../../kdecore/jobs/kjob.cpp:318
#32 0x00007fc418ee9eb5 in KIO::SimpleJob::slotFinished (this=this@entry=0x22bbd90) at ../../kio/kio/job.cpp:494
#33 0x00007fc418eea352 in KIO::TransferJob::slotFinished (this=0x22bbd90) at ../../kio/kio/job.cpp:1081
#34 0x00007fc416b030ef in QMetaObject::activate (sender=sender@entry=0x1171f00, m=m@entry=0x7fc419286620 <KIO::SlaveInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#35 0x00007fc418f82343 in KIO::SlaveInterface::finished (this=this@entry=0x1171f00) at ./slaveinterface.moc:185
#36 0x00007fc418f85041 in KIO::SlaveInterface::dispatch (this=0x1171f00, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:172
#37 0x00007fc418f8217a in KIO::SlaveInterface::dispatch (this=0x1171f00) at ../../kio/kio/slaveinterface.cpp:88
#38 0x00007fc418f7671e in KIO::Slave::gotInput (this=0x1171f00) at ../../kio/kio/slave.cpp:344
#39 0x00007fc416b030ef in QMetaObject::activate (sender=0x104c000, m=m@entry=0x7fc41927fb40 <KIO::Connection::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#40 0x00007fc418eb5890 in KIO::Connection::readyRead (this=<optimized out>) at ./connection.moc:106
#41 0x00007fc418eb5d82 in dequeue (this=<optimized out>) at ../../kio/kio/connection.cpp:82
#42 KIO::ConnectionPrivate::dequeue (this=0x112a460) at ../../kio/kio/connection.cpp:71
#43 0x00007fc416b085be in QObject::event (this=0x104c000, e=<optimized out>) at kernel/qobject.cpp:1194
#44 0x00007fc4174d88ec in QApplicationPrivate::notify_helper (this=this@entry=0x954bd0, receiver=receiver@entry=0x104c000, e=e@entry=0x20cf210) at kernel/qapplication.cpp:4567
#45 0x00007fc4174db25b in QApplication::notify (this=this@entry=0x7fff99d8dd70, receiver=receiver@entry=0x104c000, e=e@entry=0x20cf210) at kernel/qapplication.cpp:4428
#46 0x00007fc4181e41a6 in KApplication::notify (this=0x7fff99d8dd70, receiver=0x104c000, event=0x20cf210) at ../../kdeui/kernel/kapplication.cpp:311
#47 0x00007fc416aee63e in QCoreApplication::notifyInternal (this=0x7fff99d8dd70, receiver=receiver@entry=0x104c000, event=event@entry=0x20cf210) at kernel/qcoreapplication.cpp:946
#48 0x00007fc416af2171 in sendEvent (event=0x20cf210, receiver=0x104c000) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#49 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x922670) at kernel/qcoreapplication.cpp:1570
#50 0x00007fc416af24a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#51 0x00007fc416b1ce83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#52 postEventSourceDispatch (s=s@entry=0x952db0) at kernel/qeventdispatcher_glib.cpp:279
#53 0x00007fc4112ddf05 in g_main_dispatch (context=0x9550d0) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3054
#54 g_main_context_dispatch (context=context@entry=0x9550d0) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3630
#55 0x00007fc4112de248 in g_main_context_iterate (context=context@entry=0x9550d0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3701
#56 0x00007fc4112de304 in g_main_context_iteration (context=0x9550d0, may_block=1) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3762
#57 0x00007fc416b1d016 in QEventDispatcherGlib::processEvents (this=0x923fd0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#58 0x00007fc41757e1ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#59 0x00007fc416aed38f in QEventLoop::processEvents (this=this@entry=0x7fff99d8dc40, flags=...) at kernel/qeventloop.cpp:149
#60 0x00007fc416aed618 in QEventLoop::exec (this=this@entry=0x7fff99d8dc40, flags=...) at kernel/qeventloop.cpp:204
#61 0x00007fc416af2cf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#62 0x00007fc4174d6ffc in QApplication::exec () at kernel/qapplication.cpp:3828
#63 0x000000000041b74d in main (argc=1, argv=0x7fff99d8dea8) at /build/buildd/muon-2.0.1/installer/main.cpp:71

This bug may be a duplicate of or related to bug 321657.

Possible duplicates by query: bug 321657, bug 320230.

Reported using DrKonqi