Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.98 (KDE 4.2.98 (KDE 4.3 RC3))
Qt Version: 4.5.2
Operating System: Linux 2.6.30-gentoo-r4 i686

What I was doing when the application crashed:
I had just logged into a KDE session, all my previous windows from my previous session had finished loading. I opened a konsole and plasma crashed.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3673)]

Thread 6 (Thread 0xa77d2b70 (LWP 3676)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb7d260a2 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:179
#2  0xa8773cd3 in metronom_sync_loop (this=0x8659908) at metronom.c:870
#3  0xb7d216ff in start_thread (arg=0xa77d2b70) at pthread_create.c:297
#4  0xb677749e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 5 (Thread 0xa6fd1b70 (LWP 3677)):
#0  0xb7ea0dcd in QEventDispatcherGlib::processEvents (this=0x8176f38, flags={i = 36}) at kernel/qeventdispatcher_glib.cpp:329
#1  0xb7e7ad37 in QEventLoop::processEvents (this=0xa6fd1284, flags=) at kernel/qeventloop.cpp:149
#2  0xb7e7af04 in QEventLoop::exec (this=0xa6fd1284, flags={i = 0}) at kernel/qeventloop.cpp:197
#3  0xb7da5888 in QThread::exec (this=0x81a9890) at thread/qthread.cpp:487
#4  0xa87c51a1 in Phonon::Xine::XineThread::run (this=0x81a9890) at /var/tmp/portage/media-sound/phonon-4.4_pre20090520/work/phonon-4.4_pre20090520/xine/xinethread.cpp:143
#5  0xb7da847a in QThreadPrivate::start (arg=0x81a9890) at thread/qthread_unix.cpp:188
#6  0xb7d216ff in start_thread (arg=0xa6fd1b70) at pthread_create.c:297
#7  0xb677749e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 4 (Thread 0xa67d0b70 (LWP 3680)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb7d28c6b in read () from /lib/libpthread.so.0
#2  0xa8833322 in snd_ctl_hw_read (handle=0x81b3858, event=0xa67d01a4) at /usr/include/bits/unistd.h:45
#3  0xa88304ff in snd_ctl_read (ctl=0xfffffff7, event=0x48) at control.c:665
#4  0xa882cc6f in snd_hctl_handle_events (hctl=0x857a558) at hcontrol.c:786
#5  0xa8837cbe in snd_mixer_handle_events (mixer=0x81b9598) at mixer.c:847
#6  0xa85c2684 in ao_alsa_handle_event_thread (data=0x82c2c38) at audio_alsa_out.c:175
#7  0xb7d216ff in start_thread (arg=0xa67d0b70) at pthread_create.c:297
#8  0xb677749e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xa5fcfb70 (LWP 3681)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb7d25d75 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xa8782551 in fifo_peek_int (fifo=<value optimized out>, blocking=<value optimized out>) at audio_out.c:348
#3  0xa87840d8 in ao_loop (this_gen=0x837dc78) at audio_out.c:388
#4  0xb7d216ff in start_thread (arg=0xa5fcfb70) at pthread_create.c:297
#5  0xb677749e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xa57a2b70 (LWP 3682)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb7d25d75 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7da91d4 in QWaitCondition::wait (this=0x882dfc0, mutex=0x882dfbc, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  0xb7661b45 in QHostInfoAgent::run (this=0x882dfb0) at kernel/qhostinfo.cpp:260
#4  0xb7da847a in QThreadPrivate::start (arg=0x882dfb0) at thread/qthread_unix.cpp:188
#5  0xb7d216ff in start_thread (arg=0xa57a2b70) at pthread_create.c:297
#6  0xb677749e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb6106ad0 (LWP 3673)):
[KCrash Handler]
#6  AbstractTaskItem::basicPreferredSize (this=0x8cfcb90) at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999/plasma/applets/tasks/tasks.h:92
#7  0xa8b2b86c in TaskItemLayout::preferredColumns (this=0x84ed9c0) at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999/plasma/applets/tasks/taskitemlayout.cpp:206
#8  0xa8b2c49d in TaskItemLayout::gridLayoutSize (this=0x84ed9c0) at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999/plasma/applets/tasks/taskitemlayout.cpp:222
#9  0xa8b2c540 in TaskItemLayout::layoutItems (this=0x84ed9c0) at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999/plasma/applets/tasks/taskitemlayout.cpp:245
#10 0xa8b2cf2c in TaskItemLayout::insert (this=0x84ed9c0, index=11, item=0x8d5daa0)
    at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999/plasma/applets/tasks/taskitemlayout.cpp:125
#11 0xa8b2d105 in TaskItemLayout::addTaskItem (this=0x84ed9c0, item=0x8d5daa0)
    at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999/plasma/applets/tasks/taskitemlayout.cpp:82
#12 0xa8b381fe in TaskGroupItem::itemAdded (this=0x889ca20, groupableItem=0x893e5d8)
    at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999/plasma/applets/tasks/taskgroupitem.cpp:477
#13 0xa8b390a7 in TaskGroupItem::qt_metacall (this=0x889ca20, _c=QMetaObject::InvokeMetaMethod, _id=29, _a=0xbfb0a378)
    at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999_build/plasma/applets/tasks/taskgroupitem.moc:113
#14 0xb7e8d266 in QMetaObject::activate (sender=0x889b470, from_signal_index=<value optimized out>, to_signal_index=21, argv=<value optimized out>) at kernel/qobject.cpp:3101
#15 0xb7e8d813 in QMetaObject::activate (sender=0x889b470, m=0xa8b81b54, local_signal_index=0, argv=0xbfb0a378) at kernel/qobject.cpp:3178
#16 0xa8b6cc8a in TaskManager::TaskGroup::itemAdded (this=0x889b470, _t1=0x893e5d8)
    at /var/tmp/portage/kde-base/libtaskmanager-4.3.9999/work/libtaskmanager-4.3.9999_build/libs/taskmanager/taskgroup.moc:139
#17 0xa8b6d640 in TaskManager::TaskGroup::add (this=0x889b470, item=0x893e5d8) at /var/tmp/portage/kde-base/libtaskmanager-4.3.9999/work/libtaskmanager-4.3.9999/libs/taskmanager/taskgroup.cpp:138
#18 0xa8b56f66 in TaskManager::GroupManagerPrivate::addStartup (this=0x889ce38, task={d = 0x8d497b8})
    at /var/tmp/portage/kde-base/libtaskmanager-4.3.9999/work/libtaskmanager-4.3.9999/libs/taskmanager/groupmanager.cpp:176
#19 0xa8b57dd9 in TaskManager::GroupManager::qt_metacall (this=0x84ee7b0, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0xbfb0a588)
    at /var/tmp/portage/kde-base/libtaskmanager-4.3.9999/work/libtaskmanager-4.3.9999_build/libs/taskmanager/groupmanager.moc:106
#20 0xb7e8d266 in QMetaObject::activate (sender=0x842e538, from_signal_index=<value optimized out>, to_signal_index=6, argv=<value optimized out>) at kernel/qobject.cpp:3101
#21 0xb7e8d813 in QMetaObject::activate (sender=0x842e538, m=0xa8b81d1c, local_signal_index=2, argv=0xbfb0a588) at kernel/qobject.cpp:3178
#22 0xa8b70236 in TaskManager::TaskManager::startupAdded (this=0x842e538, _t1={d = 0x8d497b8})
    at /var/tmp/portage/kde-base/libtaskmanager-4.3.9999/work/libtaskmanager-4.3.9999_build/libs/taskmanager/taskmanager.moc:169
#23 0xa8b70f68 in TaskManager::TaskManager::gotNewStartup (this=0x842e538, id=@0xbfb0a84c, data=@0xbfb0a844)
    at /var/tmp/portage/kde-base/libtaskmanager-4.3.9999/work/libtaskmanager-4.3.9999/libs/taskmanager/taskmanager.cpp:391
#24 0xa8b737e2 in TaskManager::TaskManager::qt_metacall (this=0x842e538, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0xbfb0a734)
    at /var/tmp/portage/kde-base/libtaskmanager-4.3.9999/work/libtaskmanager-4.3.9999_build/libs/taskmanager/taskmanager.moc:116
#25 0xb7e8d266 in QMetaObject::activate (sender=0x889d140, from_signal_index=<value optimized out>, to_signal_index=4, argv=<value optimized out>) at kernel/qobject.cpp:3101
#26 0xb7e8d813 in QMetaObject::activate (sender=0x889d140, m=0xb75adf70, local_signal_index=0, argv=0xbfb0a734) at kernel/qobject.cpp:3178
#27 0xb73e6752 in KStartupInfo::gotNewStartup (this=0x889d140, _t1=@0xbfb0a84c, _t2=@0xbfb0a844) at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999_build/kdeui/kstartupinfo.moc:100
#28 0xb73ebf27 in KStartupInfo::Private::new_startup_info_internal (this=0x84e89a8, id_P=@0xbfb0a84c, data_P=@0xbfb0a844, update_P=false)
    at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999/kdeui/kernel/kstartupinfo.cpp:361
#29 0xb73ec145 in KStartupInfo::Private::got_startup_info (this=0x84e89a8, msg_P=@0xbfb0a8c0, update_P=<value optimized out>)
    at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999/kdeui/kernel/kstartupinfo.cpp:299
#30 0xb73f0b52 in KStartupInfo::Private::got_message (this=0x84e89a8, msg_P=@0xbfb0aae8) at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999/kdeui/kernel/kstartupinfo.cpp:228
#31 0xb73f0d0a in KStartupInfo::qt_metacall (this=0x889d140, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbfb0aa18)
    at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999_build/kdeui/kstartupinfo.moc:86
#32 0xb7e8d266 in QMetaObject::activate (sender=0x84e89bc, from_signal_index=<value optimized out>, to_signal_index=27, argv=<value optimized out>) at kernel/qobject.cpp:3101
#33 0xb7e8d813 in QMetaObject::activate (sender=0x84e89bc, m=0xb75b07a4, local_signal_index=0, argv=0xbfb0aa18) at kernel/qobject.cpp:3178
#34 0xb745ea70 in KXMessages::gotMessage (this=0x84e89bc, _t1=@0xbfb0aae8) at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999_build/kdeui/kxmessages.moc:78
#35 0xb745fe21 in KXMessages::x11Event (this=0x84e89bc, ev_P=0xbfb0c090) at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999/kdeui/util/kxmessages.cpp:217
#36 0xb73c83e0 in KApplication::x11EventFilter (this=0x80ad928, _event=0xbfb0c090) at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999/kdeui/kernel/kapplication.cpp:900
#37 0xb3f8370e in PlasmaApp::x11EventFilter (this=0x80ad928, event=0xbfb0c090)
    at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999/plasma/shells/desktop/plasmaapp.cpp:490
#38 0xb6aa104f in qt_x11EventFilter (ev=0xbfb0c090) at kernel/qapplication_x11.cpp:375
#39 0xb6aae8f0 in QApplication::x11ProcessEvent (this=0x80ad928, event=0xbfb0c090) at kernel/qapplication_x11.cpp:3266
#40 0xb6ad514c in x11EventSourceDispatch (s=0x80b6098, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#41 0xb65dded0 in IA__g_main_context_dispatch (context=0x80b5820) at gmain.c:1824
#42 0xb65e1275 in g_main_context_iterate (context=0x80b5820, block=<value optimized out>, dispatch=1, self=0x80b32e0) at gmain.c:2455
#43 0xb65e13ea in IA__g_main_context_iteration (context=0x80b5820, may_block=1) at gmain.c:2518
#44 0xb7ea0d9d in QEventDispatcherGlib::processEvents (this=0x80b3410, flags={i = 36}) at kernel/qeventdispatcher_glib.cpp:327
#45 0xb6ad49d0 in QGuiEventDispatcherGlib::processEvents (this=0x80b3410, flags={i = 36}) at kernel/qguieventdispatcher_glib.cpp:202
#46 0xb7e7ad37 in QEventLoop::processEvents (this=0xbfb0c384, flags=) at kernel/qeventloop.cpp:149
#47 0xb7e7af04 in QEventLoop::exec (this=0xbfb0c384, flags={i = 0}) at kernel/qeventloop.cpp:197
#48 0xb7e7cd9d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#49 0xb6a4ca1c in QApplication::exec () at kernel/qapplication.cpp:3525
#50 0xb3f6ebfa in kdemain (argc=1, argv=0x8066e10) at /var/tmp/portage/kde-base/plasma-workspace-4.3.9999/work/plasma-workspace-4.3.9999/plasma/shells/desktop/main.cpp:50
#51 0x0804dfd1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8094928 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051289 "0") at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999/kinit/kinit.cpp:676
#52 0x0804e983 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999/kinit/kinit.cpp:1168
#53 0x0804f02a in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999/kinit/kinit.cpp:1361
#54 0x0804fcff in main (argc=2, argv=0xbfb0cbd4, envp=0xbfb0cbe0) at /var/tmp/portage/kde-base/kdelibs-4.3.9999/work/kdelibs-4.3.9999/kinit/kinit.cpp:1788

Reported using DrKonqi