Bug 320852

Application: muon-updater (2.0.1)
KDE Platform Version: 4.10.3
Qt Version: 4.8.4
Operating System: Linux 3.9.0-3-generic x86_64
Distribution: Ubuntu Saucy Salamander (development branch)

-- Information about the crash:
- What I was doing when the application crashed:

Open Update Manager from the notification, clicked on Check for updates and got a crash at the end.

-- 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 0x7f922834d7c0 (LWP 3828))]

Thread 3 (Thread 0x7f921369f700 (LWP 3829)):
#0  0x00007f92214a607f in __pthread_mutex_unlock_usercnt (mutex=0x7f920c000a60, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007f922100b971 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9220fcb6a0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9220fcc3d5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9220fcc61c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9225835d16 in QEventDispatcherGlib::processEvents (this=0x7f920c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f922580786f in QEventLoop::processEvents (this=this@entry=0x7f921369ed70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f9225807b65 in QEventLoop::exec (this=this@entry=0x7f921369ed70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f9225706abf in QThread::exec (this=this@entry=0x8d1fa0) at thread/qthread.cpp:542
#9  0x00007f92257e8f93 in QInotifyFileSystemWatcherEngine::run (this=0x8d1fa0) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007f922570915f in QThreadPrivate::start (arg=0x8d1fa0) at thread/qthread_unix.cpp:338
#11 0x00007f92214a2f8e in start_thread (arg=0x7f921369f700) at pthread_create.c:311
#12 0x00007f92250bbe1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f9210da9700 (LWP 3842)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f9225709614 in wait (time=30000, this=0x1806c70) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=mutex@entry=0x1806c18, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f92256fcad5 in QThreadPoolThread::run (this=0x1806d50) at concurrent/qthreadpool.cpp:141
#4  0x00007f922570915f in QThreadPrivate::start (arg=0x1806d50) at thread/qthread_unix.cpp:338
#5  0x00007f92214a2f8e in start_thread (arg=0x7f9210da9700) at pthread_create.c:311
#6  0x00007f92250bbe1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f922834d7c0 (LWP 3828)):
[KCrash Handler]
#6  QMetaObject::invokeMethod (obj=0x70007900740020, member=member@entry=0x41bb42 "reload", type=type@entry=Qt::QueuedConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1166
#7  0x0000000000413eab in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., type=Qt::QueuedConnection, member=0x41bb42 "reload", obj=<optimized out>) at /usr/include/qt4/QtCore/qobjectdefs.h:418
#8  UpdaterWidget::reload (this=0x91a8c0) at /build/buildd/muon-2.0.1/updater/UpdaterWidget.cpp:150
#9  0x00000000004100b4 in MainWindow::reload (this=0x7f13c0) at /build/buildd/muon-2.0.1/updater/MainWindow.cpp:198
#10 0x000000000041016a in MainWindow::transactionStatusChanged (this=0x7f13c0, status=<optimized out>) at /build/buildd/muon-2.0.1/updater/MainWindow.cpp:166
#11 0x000000000040ea6b in MainWindow::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /build/buildd/muon-2.0.1/obj-x86_64-linux-gnu/updater/moc_MainWindow.cpp:87
#12 0x00007f922581ccf8 in QMetaObject::activate (sender=0x10529b0, m=m@entry=0x7f922757aaa0 <QApt::Transaction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffff8b44530) at kernel/qobject.cpp:3539
#13 0x00007f9227367551 in QApt::Transaction::statusChanged (this=<optimized out>, _t1=QApt::FinishedStatus) at /build/buildd/qapt-2.0.1/obj-x86_64-linux-gnu/src/moc_transaction.cxx:285
#14 0x00007f9227362cae in QApt::Transaction::updateProperty (this=0x10529b0, type=8, variant=...) at /build/buildd/qapt-2.0.1/src/transaction.cpp:496
#15 0x00007f9227367be4 in QApt::Transaction::qt_static_metacall (_o=0x10529b0, _c=<optimized out>, _id=<optimized out>, _a=0x7ffff8b44750) at /build/buildd/qapt-2.0.1/obj-x86_64-linux-gnu/src/moc_transaction.cxx:160
#16 0x00007f922581ccf8 in QMetaObject::activate (sender=sender@entry=0xddf570, m=m@entry=0x7f922757ab80 <OrgKubuntuQaptworkerTransactionInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7ffff8b44750) at kernel/qobject.cpp:3539
#17 0x00007f9227368606 in OrgKubuntuQaptworkerTransactionInterface::propertyChanged (this=this@entry=0xddf570, _t1=3, _t2=...) at /build/buildd/qapt-2.0.1/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:240
#18 0x00007f92273687fc in OrgKubuntuQaptworkerTransactionInterface::qt_static_metacall (_o=_o@entry=0xddf570, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=4, _a=_a@entry=0x7ffff8b44a10) at /build/buildd/qapt-2.0.1/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:108
#19 0x00007f9227369157 in OrgKubuntuQaptworkerTransactionInterface::qt_metacall (this=0xddf570, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7ffff8b44a10) at /build/buildd/qapt-2.0.1/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:159
#20 0x00007f92248b9ef6 in QDBusConnectionPrivate::deliverCall (this=0x84b910, object=0xddf570, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:951
#21 0x00007f922582106e in QObject::event (this=0xddf570, e=<optimized out>) at kernel/qobject.cpp:1194
#22 0x00007f92261f800c in QApplicationPrivate::notify_helper (this=this@entry=0x6dc540, receiver=receiver@entry=0xddf570, e=e@entry=0x1b3ef70) at kernel/qapplication.cpp:4567
#23 0x00007f92261fe680 in QApplication::notify (this=this@entry=0x7ffff8b451c0, receiver=receiver@entry=0xddf570, e=e@entry=0x1b3ef70) at kernel/qapplication.cpp:4353
#24 0x00007f9226f05d0a in KApplication::notify (this=0x7ffff8b451c0, receiver=0xddf570, event=0x1b3ef70) at ../../kdeui/kernel/kapplication.cpp:311
#25 0x00007f9225808b3d in QCoreApplication::notifyInternal (this=0x7ffff8b451c0, receiver=receiver@entry=0xddf570, event=event@entry=0x1b3ef70) at kernel/qcoreapplication.cpp:946
#26 0x00007f922580c09f in sendEvent (event=0x1b3ef70, receiver=0xddf570) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x6a9780) at kernel/qcoreapplication.cpp:1570
#28 0x00007f922580c543 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#29 0x00007f9225836313 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#30 postEventSourceDispatch (s=0x6db6b0) at kernel/qeventdispatcher_glib.cpp:279
#31 0x00007f9220fcc226 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f9220fcc578 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f9220fcc61c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f9225835cf5 in QEventDispatcherGlib::processEvents (this=0x6d9b10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#35 0x00007f9226299c66 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007f922580786f in QEventLoop::processEvents (this=this@entry=0x7ffff8b450c0, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007f9225807b65 in QEventLoop::exec (this=this@entry=0x7ffff8b450c0, flags=...) at kernel/qeventloop.cpp:204
#38 0x00007f922580d0db in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#39 0x00007f92261f655c in QApplication::exec () at kernel/qapplication.cpp:3828
#40 0x000000000040e596 in main (argc=1, argv=0x7ffff8b452f8) at /build/buildd/muon-2.0.1/updater/main.cpp:56

This bug may be a duplicate of or related to bug 317843.

Possible duplicates by query: bug 319983, bug 319785, bug 317843, bug 316433, bug 314925.

Reported using DrKonqi