Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-17-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
The crash happens randomly at closing an application

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f0017b68750 (LWP 2255))]

Thread 2 (Thread 0x7effee9d2910 (LWP 2261)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f00175b04fb in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x3749bf8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x3749bf8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f00139e378c in QHostInfoAgent::run (this=0x3749be0) at kernel/qhostinfo.cpp:260
#4  0x00007f00175af445 in QThreadPrivate::start (arg=0x3749be0) at thread/qthread_unix.cpp:188
#5  0x00007f0014321a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f0014f0180d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0017b68750 (LWP 2255)):
[KCrash Handler]
#5  QWidget::mapToParent (this=0x0, pos=...) at kernel/qwidget.cpp:3848
#6  0x00007f00156835ab in QWidget::mapTo (this=<value optimized out>, parent=0x3614550, pos=...) at kernel/qwidget.cpp:3804
#7  0x00007f00158089f1 in qt_flush (this=0x37644f0, widget=<value optimized out>, surface=<value optimized out>) at painting/qbackingstore.cpp:98
#8  QWidgetBackingStore::flush (this=0x37644f0, widget=<value optimized out>, surface=<value optimized out>) at painting/qbackingstore.cpp:1341
#9  0x00007f0015809e34 in QWidgetBackingStore::sync (this=0x37644f0) at painting/qbackingstore.cpp:1272
#10 0x00007f0015689fa0 in QWidgetPrivate::syncBackingStore (this=0x3763870) at kernel/qwidget.cpp:1603
#11 0x00007f00156905b8 in QWidget::event (this=0x3614550, event=0x3df44b0) at kernel/qwidget.cpp:7827
#12 0x00007f00159ec2a6 in QFrame::event (this=0x3614550, e=0x3df44b0) at widgets/qframe.cpp:559
#13 0x00007f0015a7bbc9 in QAbstractScrollArea::event (this=0x3614550, e=0x3df44b0) at widgets/qabstractscrollarea.cpp:918
#14 0x00007f0015641efc in QApplicationPrivate::notify_helper (this=0x24f6690, receiver=0x3614550, e=0x3df44b0) at kernel/qapplication.cpp:4056
#15 0x00007f00156491ce in QApplication::notify (this=0x24ed4b0, receiver=0x3614550, e=0x3df44b0) at kernel/qapplication.cpp:4021
#16 0x00007f0016278e56 in KApplication::notify (this=0x24ed4b0, receiver=0x3614550, event=0x3df44b0) at ../../kdeui/kernel/kapplication.cpp:302
#17 0x00007f0017695c2c in QCoreApplication::notifyInternal (this=0x24ed4b0, receiver=0x3614550, event=0x3df44b0) at kernel/qcoreapplication.cpp:610
#18 0x00007f001769680a in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x24664d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x24664d0) at kernel/qcoreapplication.cpp:1247
#20 0x00007f00176be533 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#21 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:210
#22 0x00007f0014572bce in g_main_dispatch (context=0x24f9000) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#23 IA__g_main_context_dispatch (context=0x24f9000) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#24 0x00007f0014576598 in g_main_context_iterate (context=0x24f9000, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#25 0x00007f00145766c0 in IA__g_main_context_iteration (context=0x24f9000, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#26 0x00007f00176be1a6 in QEventDispatcherGlib::processEvents (this=0x2469040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#27 0x00007f00156d64be in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#28 0x00007f0017694532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#29 0x00007f0017694904 in QEventLoop::exec (this=0x7fff951103a0, flags=) at kernel/qeventloop.cpp:201
#30 0x00007f0017696ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#31 0x00007f000ba134cf in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#32 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
#33 0x0000000000407aa0 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#34 0x0000000000407f51 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#35 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 219175

Reported using DrKonqi