Bug 325772

Application: muon-updater (2.0.65)
KDE Platform Version: 4.11.2
Qt Version: 4.8.4
Operating System: Linux 3.11.0-11-generic x86_64
Distribution: Ubuntu Saucy Salamander (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
I clicked the update icon in the tray, the window appeared and the loading animation started. After a short period of time, maybe 30 seconds or so, the window was replaced by the crash dialog. This occurred multiple times in a row, so I ended up using the command line to update.

The crash can be reproduced every time.

-- 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 0x7f3be05987c0 (LWP 5275))]

Thread 4 (Thread 0x7f3bcd702700 (LWP 5276)):
#0  0x00007f3bdb461055 in __GI___pthread_mutex_lock (mutex=0x7f3bc8000a60) at pthread_mutex_lock.c:95
#1  0x00007f3bdafc6391 in g_mutex_lock (mutex=mutex@entry=0x7f3bc80009a0) at /build/buildd/glib2.0-2.38.0/./glib/gthread-posix.c:213
#2  0x00007f3bdaf8611c in g_main_context_check (context=context@entry=0x7f3bc80009a0, max_priority=2147483647, fds=fds@entry=0x7f3bc8002bb0, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3558
#3  0x00007f3bdaf8662b in g_main_context_iterate (context=context@entry=0x7f3bc80009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3709
#4  0x00007f3bdaf8679c in g_main_context_iteration (context=0x7f3bc80009a0, may_block=1) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3773
#5  0x00007f3bde37ea76 in QEventDispatcherGlib::processEvents (this=0x7f3bc80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f3bde3505ef in QEventLoop::processEvents (this=this@entry=0x7f3bcd701d70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f3bde3508e5 in QEventLoop::exec (this=this@entry=0x7f3bcd701d70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f3bde24f88f in QThread::exec (this=this@entry=0xc63770) at thread/qthread.cpp:542
#9  0x00007f3bde331d13 in QInotifyFileSystemWatcherEngine::run (this=0xc63770) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f3bde251f2f in QThreadPrivate::start (arg=0xc63770) at thread/qthread_unix.cpp:338
#11 0x00007f3bdb45ef6e in start_thread (arg=0x7f3bcd702700) at pthread_create.c:311
#12 0x00007f3bddc05ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f3bbba65700 (LWP 5336)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f3bde2523e4 in wait (time=30000, this=0x1d83030) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=mutex@entry=0x1d82fd8, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f3bde2458a5 in QThreadPoolThread::run (this=0x1d82c00) at concurrent/qthreadpool.cpp:141
#4  0x00007f3bde251f2f in QThreadPrivate::start (arg=0x1d82c00) at thread/qthread_unix.cpp:338
#5  0x00007f3bdb45ef6e in start_thread (arg=0x7f3bbba65700) at pthread_create.c:311
#6  0x00007f3bddc05ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f3bbadfc700 (LWP 5338)):
#0  0x00007f3bdb46205f in __pthread_mutex_unlock_usercnt (mutex=0x7f3bac000a60, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007f3bdafc63c1 in g_mutex_unlock (mutex=mutex@entry=0x7f3bac0009a0) at /build/buildd/glib2.0-2.38.0/./glib/gthread-posix.c:232
#2  0x00007f3bdaf86689 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f3bac0029b0, timeout=-1, context=0x7f3bac0009a0) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:4005
#3  g_main_context_iterate (context=context@entry=0x7f3bac0009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3707
#4  0x00007f3bdaf8679c in g_main_context_iteration (context=0x7f3bac0009a0, may_block=1) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3773
#5  0x00007f3bde37ea76 in QEventDispatcherGlib::processEvents (this=0x7f3bac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f3bde3505ef in QEventLoop::processEvents (this=this@entry=0x7f3bbadfbd70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f3bde3508e5 in QEventLoop::exec (this=this@entry=0x7f3bbadfbd70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f3bde24f88f in QThread::exec (this=this@entry=0x1d8b110) at thread/qthread.cpp:542
#9  0x00007f3bde331d13 in QInotifyFileSystemWatcherEngine::run (this=0x1d8b110) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f3bde251f2f in QThreadPrivate::start (arg=0x1d8b110) at thread/qthread_unix.cpp:338
#11 0x00007f3bdb45ef6e in start_thread (arg=0x7f3bbadfc700) at pthread_create.c:311
#12 0x00007f3bddc05ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f3be05987c0 (LWP 5275)):
[KCrash Handler]
#6  0x00007f3bcca9fd30 in KNSResource::setStatus(KNS3::Entry::Status) () from /usr/lib/kde4/muon-knsbackend.so
#7  0x00007f3bcca9fd7c in KNSResource::setEntry(KNS3::Entry const&) () from /usr/lib/kde4/muon-knsbackend.so
#8  0x00007f3bcca9ca3c in KNSBackend::receivedEntries(QList<KNS3::Entry> const&) () from /usr/lib/kde4/muon-knsbackend.so
#9  0x00007f3bde365a58 in QMetaObject::activate (sender=0xf515b0, m=m@entry=0x7f3bcca902c0 <KNS3::DownloadManager::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff90a3c370) at kernel/qobject.cpp:3539
#10 0x00007f3bcc843fd2 in KNS3::DownloadManager::searchResult (this=<optimized out>, _t1=...) at ./downloadmanager.moc:113
#11 0x00007f3bcc84414a in KNS3::DownloadManager::Private::_k_slotEntriesLoaded (this=0xfbb500, entries=...) at ../../../knewstuff/knewstuff3/downloadmanager.cpp:117
#12 0x00007f3bde365a58 in QMetaObject::activate (sender=sender@entry=0xa25230, m=m@entry=0x7f3bcca90740 <KNS3::Engine::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fff90a3c510) at kernel/qobject.cpp:3539
#13 0x00007f3bcc84b70b in signalEntriesLoaded (_t1=..., this=0xa25230) at ./engine.moc:199
#14 KNS3::Engine::slotEntriesLoaded (this=0xa25230, request=..., entries=...) at ../../../knewstuff/knewstuff3/core/engine.cpp:280
#15 0x00007f3bcc84df36 in KNS3::Engine::qt_static_metacall (_o=0xa25230, _id=1, _a=0x2539250, _c=<optimized out>) at ./engine.moc:129
#16 0x00007f3bde365a58 in QMetaObject::activate (sender=sender@entry=0x11dc570, m=m@entry=0x7f3bcca90960 <KNS3::Provider::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff90a3c6b0) at kernel/qobject.cpp:3539
#17 0x00007f3bcc8596ba in KNS3::Provider::loadingFinished (this=this@entry=0x11dc570, _t1=..., _t2=...) at ./provider.moc:125
#18 0x00007f3bcc86e4bb in KNS3::AtticaProvider::categoryContentsLoaded (this=0x11dc570, job=<optimized out>) at ../../../knewstuff/knewstuff3/attica/atticaprovider.cpp:230
#19 0x00007f3bde365a58 in QMetaObject::activate (sender=0x250b6e0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff90a3c8c0) at kernel/qobject.cpp:3539
#20 0x00007f3bdc4c930f in Attica::BaseJob::finished(Attica::BaseJob*) () from /usr/lib/x86_64-linux-gnu/libattica.so.0.4
#21 0x00007f3bdc4c94e9 in Attica::BaseJob::dataFinished() () from /usr/lib/x86_64-linux-gnu/libattica.so.0.4
#22 0x00007f3bde365a58 in QMetaObject::activate (sender=0x2173c70, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#23 0x00007f3bde359bf8 in QMetaMethod::invoke (this=this@entry=0x7fff90a3cdd0, object=object@entry=0x2173c70, connectionType=Qt::DirectConnection, connectionType@entry=Qt::AutoConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#24 0x00007f3bde35c0b8 in QMetaObject::invokeMethod (obj=obj@entry=0x2173c70, member=member@entry=0x7f3bd3985645 "finished", type=type@entry=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#25 0x00007f3bd381dbbc in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., type=Qt::AutoConnection, member=0x7f3bd3985645 "finished", obj=0x2173c70) at /usr/include/qt4/QtCore/qobjectdefs.h:418
#26 KDEPrivate::AccessManagerReply::emitFinished (this=this@entry=0x2173c70, state=state@entry=true, type=type@entry=Qt::AutoConnection) at ../../kio/kio/accessmanagerreply_p.cpp:484
#27 0x00007f3bd381f840 in KDEPrivate::AccessManagerReply::slotResult (this=0x2173c70, kJob=0x22eaac0) at ../../kio/kio/accessmanagerreply_p.cpp:427
#28 0x00007f3bde365a58 in QMetaObject::activate (sender=sender@entry=0x22eaac0, m=m@entry=0x7f3bdeb6a600 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fff90a3d2c0) at kernel/qobject.cpp:3539
#29 0x00007f3bde7da0c2 in KJob::result (this=this@entry=0x22eaac0, _t1=_t1@entry=0x22eaac0) at ./kjob.moc:208
#30 0x00007f3bde7da100 in KJob::emitResult (this=this@entry=0x22eaac0) at ../../kdecore/jobs/kjob.cpp:318
#31 0x00007f3bd3859e3a in KIO::SimpleJob::slotFinished (this=this@entry=0x22eaac0) at ../../kio/kio/job.cpp:496
#32 0x00007f3bd385af8e in KIO::TransferJob::slotFinished (this=0x22eaac0) at ../../kio/kio/job.cpp:1099
#33 0x00007f3bde365a58 in QMetaObject::activate (sender=0xf99c20, m=m@entry=0x7f3bd3c03580 <KIO::SlaveInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#34 0x00007f3bd38f7d33 in KIO::SlaveInterface::finished (this=<optimized out>) at ./slaveinterface.moc:185
#35 0x00007f3bd38f9276 in KIO::SlaveInterface::dispatch (this=<optimized out>, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:176
#36 0x00007f3bd38f6d6e in KIO::SlaveInterface::dispatch (this=0xf99c20) at ../../kio/kio/slaveinterface.cpp:92
#37 0x00007f3bd38eb9d6 in KIO::Slave::gotInput (this=0xf99c20) at ../../kio/kio/slave.cpp:344
#38 0x00007f3bde365a58 in QMetaObject::activate (sender=0x146df40, m=m@entry=0x7f3bd3bfcaa0 <KIO::Connection::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#39 0x00007f3bd38271e0 in KIO::Connection::readyRead (this=<optimized out>) at ./connection.moc:106
#40 0x00007f3bd38278d1 in KIO::ConnectionPrivate::dequeue (this=0x14a2d80) at ../../kio/kio/connection.cpp:82
#41 0x00007f3bde369dce in QObject::event (this=0x146df40, e=<optimized out>) at kernel/qobject.cpp:1194
#42 0x00007f3bded42dfc in QApplicationPrivate::notify_helper (this=this@entry=0xa25b30, receiver=receiver@entry=0x146df40, e=e@entry=0x24cb9a0) at kernel/qapplication.cpp:4567
#43 0x00007f3bded49470 in QApplication::notify (this=this@entry=0x7fff90a3e010, receiver=receiver@entry=0x146df40, e=e@entry=0x24cb9a0) at kernel/qapplication.cpp:4353
#44 0x00007f3bdfa4ca6a in KApplication::notify (this=0x7fff90a3e010, receiver=0x146df40, event=0x24cb9a0) at ../../kdeui/kernel/kapplication.cpp:311
#45 0x00007f3bde3518bd in QCoreApplication::notifyInternal (this=0x7fff90a3e010, receiver=receiver@entry=0x146df40, event=event@entry=0x24cb9a0) at kernel/qcoreapplication.cpp:946
#46 0x00007f3bde354e1f in sendEvent (event=0x24cb9a0, receiver=0x146df40) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#47 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x9f4500) at kernel/qcoreapplication.cpp:1570
#48 0x00007f3bde3552c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#49 0x00007f3bde37f073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#50 postEventSourceDispatch (s=s@entry=0xa26130) at kernel/qeventdispatcher_glib.cpp:279
#51 0x00007f3bdaf863a6 in g_main_dispatch (context=0xa26040) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3065
#52 g_main_context_dispatch (context=context@entry=0xa26040) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3641
#53 0x00007f3bdaf866f8 in g_main_context_iterate (context=context@entry=0xa26040, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3712
#54 0x00007f3bdaf8679c in g_main_context_iteration (context=0xa26040, may_block=1) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3773
#55 0x00007f3bde37ea55 in QEventDispatcherGlib::processEvents (this=0x9f5de0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#56 0x00007f3bdede49d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#57 0x00007f3bde3505ef in QEventLoop::processEvents (this=this@entry=0x7fff90a3df10, flags=...) at kernel/qeventloop.cpp:149
#58 0x00007f3bde3508e5 in QEventLoop::exec (this=this@entry=0x7fff90a3df10, flags=...) at kernel/qeventloop.cpp:204
#59 0x00007f3bde355e5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#60 0x000000000040cdb1 in ?? ()
#61 0x00007f3bddb2dde5 in __libc_start_main (main=0x40c9d0, argc=1, ubp_av=0x7fff90a3e148, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff90a3e138) at libc-start.c:260
#62 0x000000000040ce24 in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 321657.

Possible duplicates by query: bug 324074, bug 322665, bug 321657, bug 320230.

Reported using DrKonqi