Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Using Dolphin, browsed to a remote SaMBa share and opened a PDF in Okular. After the PDF opened, Plasma crashed.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 4196)]

Thread 2 (Thread 0xa82b1b90 (LWP 4199)):
#0  0xb7f54430 in __kernel_vsyscall ()
#1  0xb64600e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66402ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7d46172 in QWaitCondition::wait (this=0xa6098d0, mutex=0xa6098cc, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7683ac2 in QHostInfoAgent::run (this=0xa6098c0) at kernel/qhostinfo.cpp:260
#5  0xb7d45132 in QThreadPrivate::start (arg=0xa6098c0) at thread/qthread_unix.cpp:188
#6  0xb645c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb663149e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5f68700 (LWP 4196)):
[KCrash Handler]
#6  AbstractTaskItem::basicPreferredSize (this=0x10e17ec8) at /build/buildd/kdebase-workspace-4.3.2/plasma/applets/tasks/tasks.h:92
#7  0xa85676c1 in TaskItemLayout::preferredColumns (this=0xa50e6b8) at /build/buildd/kdebase-workspace-4.3.2/plasma/applets/tasks/taskitemlayout.cpp:206
#8  0xa85680ed in TaskItemLayout::gridLayoutSize (this=0xa50e6b8) at /build/buildd/kdebase-workspace-4.3.2/plasma/applets/tasks/taskitemlayout.cpp:222
#9  0xa85681ab in TaskItemLayout::layoutItems (this=0xa50e6b8) at /build/buildd/kdebase-workspace-4.3.2/plasma/applets/tasks/taskitemlayout.cpp:245
#10 0xa8568d92 in TaskItemLayout::insert (this=0xa50e6b8, index=5, item=0x10f01ca8) at /build/buildd/kdebase-workspace-4.3.2/plasma/applets/tasks/taskitemlayout.cpp:125
#11 0xa8568f87 in TaskItemLayout::addTaskItem (this=0xa50e6b8, item=0x10f01ca8) at /build/buildd/kdebase-workspace-4.3.2/plasma/applets/tasks/taskitemlayout.cpp:82
#12 0xa8575a05 in TaskGroupItem::itemAdded (this=0xa606310, groupableItem=0x10b39680) at /build/buildd/kdebase-workspace-4.3.2/plasma/applets/tasks/taskgroupitem.cpp:477
#13 0xa857608c in TaskGroupItem::qt_metacall (this=0xa606310, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0xbfb6f77c)
    at /build/buildd/kdebase-workspace-4.3.2/obj-i486-linux-gnu/plasma/applets/tasks/taskgroupitem.moc:113
#14 0xb7e4f1b8 in QMetaObject::activate (sender=0x9f7d360, from_signal_index=21, to_signal_index=21, argv=0xbfb6f77c) at kernel/qobject.cpp:3113
#15 0xb7e4fe42 in QMetaObject::activate (sender=0x9f7d360, m=0xa85b6b74, local_signal_index=0, argv=0xbfb6f77c) at kernel/qobject.cpp:3187
#16 0xa85a7af3 in TaskManager::TaskGroup::itemAdded (this=0x9f7d360, _t1=0x10b39680) at /build/buildd/kdebase-workspace-4.3.2/obj-i486-linux-gnu/libs/taskmanager/taskgroup.moc:145
#17 0xa85a875b in TaskManager::TaskGroup::add (this=0x9f7d360, item=0x10b39680) at /build/buildd/kdebase-workspace-4.3.2/libs/taskmanager/taskgroup.cpp:138
#18 0xa8590a38 in TaskManager::GroupManagerPrivate::addStartup (this=0xa511300, task={d = 0xbfb6f848}) at /build/buildd/kdebase-workspace-4.3.2/libs/taskmanager/groupmanager.cpp:176
#19 0xa85911e2 in TaskManager::GroupManager::qt_metacall (this=0x9f40210, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0xbfb6f92c)
    at /build/buildd/kdebase-workspace-4.3.2/obj-i486-linux-gnu/libs/taskmanager/groupmanager.moc:106
#20 0xb7e4f1b8 in QMetaObject::activate (sender=0xa528b80, from_signal_index=6, to_signal_index=6, argv=0xbfb6f92c) at kernel/qobject.cpp:3113
#21 0xb7e4fe42 in QMetaObject::activate (sender=0xa528b80, m=0xa85b6d3c, local_signal_index=2, argv=0xbfb6f92c) at kernel/qobject.cpp:3187
#22 0xa85ab523 in TaskManager::TaskManager::startupAdded (this=0xa528b80, _t1={d = 0xbfb6f968}) at /build/buildd/kdebase-workspace-4.3.2/obj-i486-linux-gnu/libs/taskmanager/taskmanager.moc:169
#23 0xa85ac240 in TaskManager::TaskManager::gotNewStartup (this=0xa528b80, id=@0xbfb6fb88, data=@0xbfb6fb80) at /build/buildd/kdebase-workspace-4.3.2/libs/taskmanager/taskmanager.cpp:392
#24 0xa85aec69 in TaskManager::TaskManager::qt_metacall (this=0xa528b80, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0xbfb6fa88)
    at /build/buildd/kdebase-workspace-4.3.2/obj-i486-linux-gnu/libs/taskmanager/taskmanager.moc:116
#25 0xb7e4f1b8 in QMetaObject::activate (sender=0xa517298, from_signal_index=4, to_signal_index=4, argv=0xbfb6fa88) at kernel/qobject.cpp:3113
#26 0xb7e4fe42 in QMetaObject::activate (sender=0xa517298, m=0xb75b2f70, local_signal_index=0, argv=0xbfb6fa88) at kernel/qobject.cpp:3187
#27 0xb7424f59 in KStartupInfo::gotNewStartup (this=0xa517298, _t1=@0xbfb6fb88, _t2=@0xbfb6fb80) at /build/buildd/kde4libs-4.3.2/obj-i486-linux-gnu/kdeui/kstartupinfo.moc:100
#28 0xb742e90e in KStartupInfo::Private::new_startup_info_internal (this=0xa6013f8, id_P=@0xbfb6fb88, data_P=@0xbfb6fb80, update_P=false)
    at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kstartupinfo.cpp:361
#29 0xb742ee19 in KStartupInfo::Private::got_startup_info (this=0xa6013f8, msg_P=@0xbfb6fbdc, update_P=<value optimized out>) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kstartupinfo.cpp:299
#30 0xb742fb61 in KStartupInfo::Private::got_message (this=0xa6013f8, msg_P=@0xbfb6fdc8) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kstartupinfo.cpp:228
#31 0xb742fca5 in KStartupInfo::qt_metacall (this=0xa517298, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0xbfb6fcec) at /build/buildd/kde4libs-4.3.2/obj-i486-linux-gnu/kdeui/kstartupinfo.moc:86
#32 0xb7e4f1b8 in QMetaObject::activate (sender=0xa60140c, from_signal_index=27, to_signal_index=27, argv=0xbfb6fcec) at kernel/qobject.cpp:3113
#33 0xb7e4fe42 in QMetaObject::activate (sender=0xa60140c, m=0xb75b57a4, local_signal_index=0, argv=0xbfb6fcec) at kernel/qobject.cpp:3187
#34 0xb74a37b3 in KXMessages::gotMessage (this=0xa60140c, _t1=@0xbfb6fdc8) at /build/buildd/kde4libs-4.3.2/obj-i486-linux-gnu/kdeui/kxmessages.moc:78
#35 0xb74a4c9d in KXMessages::x11Event (this=0xa60140c, ev_P=0xbfb713ec) at /build/buildd/kde4libs-4.3.2/kdeui/util/kxmessages.cpp:217
#36 0xb74057b9 in KApplication::x11EventFilter (this=0x9c9e018, _event=0xbfb713ec) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kapplication.cpp:911
#37 0xb3b65c17 in PlasmaApp::x11EventFilter (this=0x9c9e018, event=0xbfb713ec) at /build/buildd/kdebase-workspace-4.3.2/plasma/shells/desktop/plasmaapp.cpp:490
#38 0xb6959e5e in qt_x11EventFilter (ev=0xbfb713ec) at kernel/qapplication_x11.cpp:375
#39 0xb696c6df in QApplication::x11ProcessEvent (this=0x9c9e018, event=0xbfb713ec) at kernel/qapplication_x11.cpp:3271
#40 0xb699937a in x11EventSourceDispatch (s=0x9ca6968, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#41 0xb64a8b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#42 0xb64ac0eb in ?? () from /usr/lib/libglib-2.0.so.0
#43 0xb64ac268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#44 0xb7e652f8 in QEventDispatcherGlib::processEvents (this=0x9ca3690, flags={i = -1078520408}) at kernel/qeventdispatcher_glib.cpp:327
#45 0xb6998a75 in QGuiEventDispatcherGlib::processEvents (this=0x9ca3690, flags={i = -1078520360}) at kernel/qguieventdispatcher_glib.cpp:202
#46 0xb7e381fa in QEventLoop::processEvents (this=0xbfb71650, flags={i = -1078520296}) at kernel/qeventloop.cpp:149
#47 0xb7e38642 in QEventLoop::exec (this=0xbfb71650, flags={i = -1078520232}) at kernel/qeventloop.cpp:201
#48 0xb7e3aae9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#49 0xb68f6bb7 in QApplication::exec () at kernel/qapplication.cpp:3525
#50 0xb3b502f0 in kdemain (argc=1, argv=0x9c8ae88) at /build/buildd/kdebase-workspace-4.3.2/plasma/shells/desktop/main.cpp:50
#51 0x0804e27d in launch (argc=1, _name=0x9c1e57c "/usr/bin/plasma-desktop", args=0x9c1e594 "", cwd=0x0, envc=0, envs=0x9c1e598 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x805136d "0") at /build/buildd/kde4libs-4.3.2/kinit/kinit.cpp:677
#52 0x0804ea5d in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.3.2/kinit/kinit.cpp:1169
#53 0x0804efe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.3.2/kinit/kinit.cpp:1362
#54 0x0804fbca in main (argc=2, argv=0xbfb71e44, envp=0xbfb71e50) at /build/buildd/kde4libs-4.3.2/kinit/kinit.cpp:1793

Reported using DrKonqi