Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.5 (KDE 4.3.5)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-21-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
plasma-desktop crash after extensive memory usage, the desktop runs 24/7 and memory usage can be very high, sometimes swapping everything. After plasma come back, the taskmonitor widget was missing (it was activated with cpu + both cores temperature + ram usage + disk space)

 -- Backtrace:
Application: Espaço de trabalho do Plasma (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f70a1238750 (LWP 2057))]

Thread 2 (Thread 0x7f707e6c0910 (LWP 2060)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f70a0c7a4fb in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1fa03b8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1fa03b8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f709d0ab78c in QHostInfoAgent::run (this=0x1fa03a0) at kernel/qhostinfo.cpp:260
#4  0x00007f70a0c79445 in QThreadPrivate::start (arg=0x1fa03a0) at thread/qthread_unix.cpp:188
#5  0x00007f709d9e9a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f709e5c980d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f70a1238750 (LWP 2057)):
[KCrash Handler]
#5  0x00007f709fe6a614 in KDirModel::dirLister (this=0x161abc0) at ../../kio/kio/kdirmodel.cpp:354
#6  0x00007f7095b5ff06 in KFilePreviewGenerator::Private::updateCutItems (this=0x1ea6ff0) at ../../kfile/kfilepreviewgenerator.cpp:651
#7  0x00007f7095b60bfd in KFilePreviewGenerator::qt_metacall (this=0x1eb5c60, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff1110bc10) at ./kfilepreviewgenerator.moc:91
#8  0x00007f70a0d74ddc in QMetaObject::activate (sender=0x126f0f0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7f70a1050720) at kernel/qobject.cpp:3113
#9  0x00007f709ed76062 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff1110d480) at kernel/qapplication_x11.cpp:3384
#10 0x00007f709ed9ed0c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#11 0x00007f709dc3abce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#12 0x00007f709dc3e598 in ?? () from /lib/libglib-2.0.so.0
#13 0x00007f709dc3e6c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#14 0x00007f70a0d881a6 in QEventDispatcherGlib::processEvents (this=0x110e040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#15 0x00007f709ed9e4be in QGuiEventDispatcherGlib::processEvents (this=0x161abc0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#16 0x00007f70a0d5e532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#17 0x00007f70a0d5e904 in QEventLoop::exec (this=0x7fff1110d7b0, flags=) at kernel/qeventloop.cpp:201
#18 0x00007f70a0d60ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#19 0x00007f7095dc559f in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#20 0x0000000000406da8 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a299 "0") at ../../kinit/kinit.cpp:677
#21 0x0000000000407aa0 in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#22 0x0000000000407f51 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#23 0x0000000000408bb2 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1793
The current source language is "auto; currently asm".
The current source language is "auto; currently c".

This bug may be a duplicate of or related to bug 231830

Reported using DrKonqi