Version:            (using KDE 4.2.2)
OS:                Linux
Installed from:    Ubuntu Packages

Happened when I had tvtime open using oss and then opened kpackagekit. Backtrace below..

Application: Plasma Workspace (plasma), signal SIGSEGV
0x00007ff7ba91fd21 in nanosleep () from /lib/libc.so.6
[Current thread is 0 (LWP 3672)]

Thread 5 (Thread 0x7ff79e7e0950 (LWP 3673)):
#0  0x00007ff7b7de52e9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007ff7bb401939 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007ff7bebbd4cc in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007ff7bb400952 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007ff7b7de13ba in start_thread () from /lib/libpthread.so.0
#5  0x00007ff7ba95dfcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7ff7977c4950 (LWP 3675)):
#0  0x00007ff7ba956742 in select () from /lib/libc.so.6
#1  0x00007ff7bb4c7f06 in ?? () from /usr/lib/libQtCore.so.4
#2  0x00007ff7bb400952 in ?? () from /usr/lib/libQtCore.so.4
#3  0x00007ff7b7de13ba in start_thread () from /lib/libpthread.so.0
#4  0x00007ff7ba95dfcd in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ff796ba3950 (LWP 3677)):
#0  0x00007ff7b7de52e9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007ff7bb401939 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007ff7a035ed4e in RenderThread::run (this=0x121c898) at /build/buildd/kdebase-workspace-4.2.2/plasma/wallpapers/image/renderthread.cpp:91
#3  0x00007ff7bb400952 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007ff7b7de13ba in start_thread () from /lib/libpthread.so.0
#5  0x00007ff7ba95dfcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ff79508d950 (LWP 3678)):
#0  0x00007ff7b7de52e9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007ff7bb401939 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007ff7a035ed4e in RenderThread::run (this=0x11f95d8) at /build/buildd/kdebase-workspace-4.2.2/plasma/wallpapers/image/renderthread.cpp:91
#3  0x00007ff7bb400952 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007ff7b7de13ba in start_thread () from /lib/libpthread.so.0
#5  0x00007ff7ba95dfcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff7bff70790 (LWP 3672)):
[KCrash Handler]
#5  0x00007ff7bb422513 in QHashData::nextNode () from /usr/lib/libQtCore.so.4
#6  0x00007ff7a2e05cf2 in TaskManager::GroupManager::add (this=0x14be930, task={d = 0x7fffc80a93f0}) at /usr/include/qt4/QtCore/qhash.h:335
#7  0x00007ff7a2e07c0b in TaskManager::GroupManager::qt_metacall (this=0x14be930, _c=<value optimized out>, _id=<value optimized out>, _a=0x7fffc80a9510)
    at /build/buildd/kdebase-workspace-4.2.2/obj-x86_64-linux-gnu/libs/taskmanager/groupmanager.moc:91
#8  0x00007ff7bb4ff1f2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#9  0x00007ff7a2e1dc42 in TaskManager::TaskManager::taskAdded (this=0xe97c50, _t1=<value optimized out>)
    at /build/buildd/kdebase-workspace-4.2.2/obj-x86_64-linux-gnu/libs/taskmanager/taskmanager.moc:152
#10 0x00007ff7a2e1fc6f in TaskManager::TaskManager::windowAdded (this=0x14bddf0, w=46137433) at /build/buildd/kdebase-workspace-4.2.2/libs/taskmanager/taskmanager.cpp:248
#11 0x00007ff7a2e20c5f in TaskManager::TaskManager::qt_metacall (this=0x14bddf0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffc80a97a0)
    at /build/buildd/kdebase-workspace-4.2.2/obj-x86_64-linux-gnu/libs/taskmanager/taskmanager.moc:107
#12 0x00007ff7bb4ff1f2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#13 0x00007ff7be415dd2 in KWindowSystem::windowAdded () from /usr/lib/libkdeui.so.5
#14 0x00007ff7be41812c in ?? () from /usr/lib/libkdeui.so.5
#15 0x00007ff7be427158 in NETRootInfo::update () from /usr/lib/libkdeui.so.5
#16 0x00007ff7be4274cb in NETRootInfo::event () from /usr/lib/libkdeui.so.5
#17 0x00007ff7be4185ab in ?? () from /usr/lib/libkdeui.so.5
#18 0x00007ff7be2ea683 in KApplication::x11EventFilter () from /usr/lib/libkdeui.so.5
#19 0x00007ff7bfc5b3b4 in PlasmaApp::x11EventFilter (this=0xe8a780, event=0x7fffc80aa4b0) at /build/buildd/kdebase-workspace-4.2.2/plasma/shells/desktop/plasmaapp.cpp:453
#20 0x00007ff7bbc8abcf in ?? () from /usr/lib/libQtGui.so.4
#21 0x00007ff7bbc9e05f in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#22 0x00007ff7bbcc7514 in ?? () from /usr/lib/libQtGui.so.4
#23 0x00007ff7b61b120a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0x00007ff7b61b48e0 in ?? () from /usr/lib/libglib-2.0.so.0
#25 0x00007ff7b61b4a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0x00007ff7bb512e6f in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#27 0x00007ff7bbcc6c9f in ?? () from /usr/lib/libQtGui.so.4
#28 0x00007ff7bb4e8002 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#29 0x00007ff7bb4e83cd in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#30 0x00007ff7bb4ea694 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#31 0x00007ff7bfc4a9bb in kdemain (argc=1, argv=0x7fffc80aaae8) at /build/buildd/kdebase-workspace-4.2.2/plasma/shells/desktop/main.cpp:54
#32 0x00007ff7ba8965a6 in __libc_start_main () from /lib/libc.so.6
#33 0x00000000004007c9 in _start () at ../sysdeps/x86_64/elf/start.S:113