Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.3 (4.6.3)
Qt Version: 4.7.2
Operating System: Linux 2.6.38.8-32.fc15.x86_64 x86_64
Distribution: "Fedora release 15 (Lovelock)"

-- Information about the crash:
- What I was doing when the application crashed:
Immediatly after running yum update, KDE crashes on login.  This is 100% reproducable and appears to happen just after network manager loads.
Once logged in (With no KDE) I can alt+f2 and open console and manually start service network.

When I try to get status of NetworkManager:
sudo service NetworkManager status
NetworkManager.service - Network Manager
          Loaded: loaded (/lib/systemd/system/NetworkManager.service)
          Active: failed since Fri, 24 Jun 2011 20:24:33 -0700; 3min 28s ago
         Process: 1733 ExecStart=/usr/sbin/NetworkManager --no-daemon (code=exited, status=1/FAILURE)
          CGroup: name=systemd:/system/NetworkManager.service

If I try to start NetworkManager it briefly starts up and then dies.  I need to restart network to get connectivity back.

NetworkManager info:
sudo yum info NetworkManager
Loaded plugins: auto-update-debuginfo, langpacks, presto, refresh-packagekit
Installed Packages
Name        : NetworkManager
Arch        : x86_64
Epoch       : 1
Version     : 0.8.9997
Release     : 4.git20110620.fc15
Size        : 5.9 M
Repo        : installed
From repo   : updates




- Unusual behavior I noticed:
KDE crashes, NetworkManager crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7fe3d3e7f840 (LWP 1515))]

Thread 3 (Thread 0x7fe3baf67700 (LWP 1544)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:219
#1  0x0000003e5a27452e in wait (time=30000, this=0x168b9b0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x15b8660, time=30000) at thread/qwaitcondition_unix.cpp:160
#3  0x0000003e5a268ebf in QThreadPoolThread::run (this=0x16af670) at concurrent/qthreadpool.cpp:140
#4  0x0000003e5a274125 in QThreadPrivate::start (arg=0x16af670) at thread/qthread_unix.cpp:320
#5  0x0000003e4f607af1 in start_thread (arg=0x7fe3baf67700) at pthread_create.c:305
#6  0x0000003e4eedfddd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7fe3b8f6a700 (LWP 1585)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:219
#1  0x0000003e5a27452e in wait (time=30000, this=0x1b30b00) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1b31550, time=30000) at thread/qwaitcondition_unix.cpp:160
#3  0x0000003e5a268ebf in QThreadPoolThread::run (this=0x1b30a90) at concurrent/qthreadpool.cpp:140
#4  0x0000003e5a274125 in QThreadPrivate::start (arg=0x1b30a90) at thread/qthread_unix.cpp:320
#5  0x0000003e4f607af1 in start_thread (arg=0x7fe3b8f6a700) at pthread_create.c:305
#6  0x0000003e4eedfddd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7fe3d3e7f840 (LWP 1515)):
[KCrash Handler]
#6  0x0000003e5a687b40 in QString::shared_null () from /usr/lib64/libQtCore.so.4
#7  0x00007fe3bcf041ab in NMPopup::updateHasWireless (this=0x12e5fe0) at /usr/src/debug/networkmanagement-0.9/applet/nmpopup.cpp:536
#8  0x00007fe3bcf04947 in NMPopup::networkingEnabledToggled (this=0x12e5fe0, checked=false) at /usr/src/debug/networkmanagement-0.9/applet/nmpopup.cpp:512
#9  0x00007fe3bcefded4 in NMPopup::qt_metacall (this=0x12e5fe0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffed312b40) at /usr/src/debug/networkmanagement-0.9/x86_64-redhat-linux-gnu/applet/moc_nmpopup.cpp:107
#10 0x0000003e5a36ceca in QMetaObject::activate (sender=0x14132a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffed312b40) at kernel/qobject.cpp:3278
#11 0x0000003e69dddddf in Plasma::CheckBox::toggled (this=<optimized out>, _t1=false) at /usr/src/debug/kdelibs-4.6.3/x86_64-redhat-linux-gnu/plasma/checkbox.moc:145
#12 0x0000003e69ddde49 in Plasma::CheckBox::qt_metacall (this=0x14132a0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffed312f00) at /usr/src/debug/kdelibs-4.6.3/x86_64-redhat-linux-gnu/plasma/checkbox.moc:96
#13 0x0000003e5a36ceca in QMetaObject::activate (sender=0x13f68f0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffed312f00) at kernel/qobject.cpp:3278
#14 0x0000003e5d618d02 in QAbstractButton::toggled (this=<optimized out>, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:213
#15 0x0000003e5d36426e in QAbstractButton::setChecked (this=0x13f68f0, checked=false) at widgets/qabstractbutton.cpp:766
#16 0x00007fe3bcf04536 in NMPopup::managerNetworkingEnabledChanged (this=0x12e5fe0, enabled=false) at /usr/src/debug/networkmanagement-0.9/applet/nmpopup.cpp:590
#17 0x00007fe3bcefdef4 in NMPopup::qt_metacall (this=0x12e5fe0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffed313090) at /usr/src/debug/networkmanagement-0.9/x86_64-redhat-linux-gnu/applet/moc_nmpopup.cpp:108
#18 0x0000003e5a36ceca in QMetaObject::activate (sender=0x1316fa0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffed313090) at kernel/qobject.cpp:3278
#19 0x0000003e6c01aeb2 in Solid::Control::NetworkManager::Notifier::networkingEnabledChanged (this=<optimized out>, _t1=false) at /usr/src/debug/kdebase-workspace-4.6.3/x86_64-redhat-linux-gnu/libs/solid/control/networkmanager.moc:138
#20 0x0000003e6c01af64 in Solid::Control::NetworkManager::Notifier::qt_metacall (this=0x1316fa0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffed3131d0) at /usr/src/debug/kdebase-workspace-4.6.3/x86_64-redhat-linux-gnu/libs/solid/control/networkmanager.moc:90
#21 0x0000003e6c01b3d0 in Solid::Control::NetworkManagerPrivate::qt_metacall (this=0x1316fa0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffed3131d0) at /usr/src/debug/kdebase-workspace-4.6.3/x86_64-redhat-linux-gnu/libs/solid/control/networkmanager_p.moc:76
#22 0x0000003e5a36ceca in QMetaObject::activate (sender=0x12bfe80, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffed3131d0) at kernel/qobject.cpp:3278
#23 0x00007fe3bc1dc48f in NMNetworkManager::networkingEnabledChanged (this=<optimized out>, _t1=false) at /usr/src/debug/kdebase-workspace-4.6.3/x86_64-redhat-linux-gnu/solid/networkmanager-0.7/manager.moc:111
#24 0x00007fe3bc1defde in NMNetworkManager::propertiesChanged (this=0x12bfe80, properties=<optimized out>) at /usr/src/debug/kdebase-workspace-4.6.3/solid/networkmanager-0.7/manager.cpp:281
#25 0x00007fe3bc1dfb01 in NMNetworkManager::qt_metacall (this=0x12bfe80, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffed3135b0) at /usr/src/debug/kdebase-workspace-4.6.3/x86_64-redhat-linux-gnu/solid/networkmanager-0.7/manager.moc:98
#26 0x0000003e5a36ceca in QMetaObject::activate (sender=0x12c0020, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffed3135b0) at kernel/qobject.cpp:3278
#27 0x00007fe3bc1e93f5 in OrgFreedesktopNetworkManagerInterface::PropertiesChanged (this=<optimized out>, _t1=<optimized out>) at /usr/src/debug/kdebase-workspace-4.6.3/x86_64-redhat-linux-gnu/solid/networkmanager-0.7/nm-manager-clientinterface.moc:175
#28 0x00007fe3bc1e9c24 in OrgFreedesktopNetworkManagerInterface::qt_metacall (this=0x12c0020, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0x7fffed3139b0) at /usr/src/debug/kdebase-workspace-4.6.3/x86_64-redhat-linux-gnu/solid/networkmanager-0.7/nm-manager-clientinterface.moc:107
#29 0x0000003e5b8205eb in QDBusConnectionPrivate::deliverCall (this=0xd85800, object=0x12c0020, msg=..., metaTypes=..., slotIdx=7) at qdbusintegrator.cpp:941
#30 0x0000003e5b829d7f in QDBusCallDeliveryEvent::placeMetaCall (this=<optimized out>, object=<optimized out>) at qdbusintegrator_p.h:103
#31 0x0000003e5a370a8a in QObject::event (this=0x12c0020, e=<optimized out>) at kernel/qobject.cpp:1217
#32 0x0000003e5cfb73d4 in notify_helper (e=0x1b74dc0, receiver=0x12c0020, this=0xcd6c60) at kernel/qapplication.cpp:4462
#33 QApplicationPrivate::notify_helper (this=0xcd6c60, receiver=0x12c0020, e=0x1b74dc0) at kernel/qapplication.cpp:4434
#34 0x0000003e5cfbc261 in QApplication::notify (this=0xcb8e10, receiver=0x12c0020, e=0x1b74dc0) at kernel/qapplication.cpp:4341
#35 0x0000003e5ea41806 in KApplication::notify (this=0xcb8e10, receiver=0x12c0020, event=0x1b74dc0) at /usr/src/debug/kdelibs-4.6.3/kdeui/kernel/kapplication.cpp:311
#36 0x0000003e5a35a1bc in QCoreApplication::notifyInternal (this=0xcb8e10, receiver=0x12c0020, event=0x1b74dc0) at kernel/qcoreapplication.cpp:731
#37 0x0000003e5a35d784 in sendEvent (event=0x1b74dc0, receiver=0x12c0020) at kernel/qcoreapplication.h:215
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xc6ccd0) at kernel/qcoreapplication.cpp:1372
#39 0x0000003e5a3848c3 in sendPostedEvents () at kernel/qcoreapplication.h:220
#40 postEventSourceDispatch (s=0xcd5820) at kernel/qeventdispatcher_glib.cpp:277
#41 0x0000003e50e427ed in g_main_dispatch (context=0xcd48e0) at gmain.c:2441
#42 g_main_context_dispatch (context=0xcd48e0) at gmain.c:3014
#43 0x0000003e50e42fc8 in g_main_context_iterate (context=0xcd48e0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3092
#44 0x0000003e50e4325c in g_main_context_iteration (context=0xcd48e0, may_block=1) at gmain.c:3155
#45 0x0000003e5a384d1f in QEventDispatcherGlib::processEvents (this=0xc6e7e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#46 0x0000003e5d059f2e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#47 0x0000003e5a3596d2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#48 0x0000003e5a3598cf in QEventLoop::exec (this=0x7fffed314370, flags=...) at kernel/qeventloop.cpp:201
#49 0x0000003e5a35da17 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#50 0x0000003e6a83f1e3 in kdemain (argc=1, argv=0x7fffed314758) at /usr/src/debug/kdebase-workspace-4.6.3/plasma/desktop/shell/main.cpp:120
#51 0x0000003e4ee2139d in __libc_start_main (main=0x400890 <main(int, char**)>, argc=1, ubp_av=0x7fffed314758, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffed314748) at libc-start.c:226
#52 0x00000000004008c1 in _start ()

Reported using DrKonqi