Version:            (using KDE 4.0.3)
Installed from:    Fedora RPMs
Compiler:          gcc-c++                 x86_64     4.3.0-7 ; gcc x86_64   4.3.0-7 this is from Fedora 9
OS:                Linux

Description of problem:
kwin crashed and caused the signal 11 (SIGSEGV)

(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0x7f86950f0790 (LWP 2429)]
[New Thread 0x42644950 (LWP 5933)]
(no debugging symbols found)
[KCrash handler]
#5  0x000000368eefd065 in QMetaObject::activate ()
   from /usr/lib64/libQtCore.so.4
#6  0x000000368ee9f611 in QProcess::stateChanged ()
   from /usr/lib64/libQtCore.so.4
#7  0x000000368eea4eba in ?? () from /usr/lib64/libQtCore.so.4
#8  0x000000368eed3c48 in ?? () from /usr/lib64/libQtCore.so.4
#9  0x000000368ee9f87c in QProcess::waitForFinished ()
   from /usr/lib64/libQtCore.so.4
#10 0x000000368ee9fdf3 in QProcess::~QProcess ()
   from /usr/lib64/libQtCore.so.4
#11 0x000000369042b6d7 in ?? () from /usr/lib64/libkdeinit4_kwin.so
#12 0x000000368f4f20dd in NETRootInfo::event () from /usr/lib64/libkdeui.so.5
#13 0x000000369044b661 in ?? () from /usr/lib64/libkdeinit4_kwin.so
#14 0x0000003690439188 in ?? () from /usr/lib64/libkdeinit4_kwin.so
#15 0x000000368dbd79ff in ?? () from /usr/lib64/libQtGui.so.4
#16 0x000000368dbe290e in QApplication::x11ProcessEvent ()
   from /usr/lib64/libQtGui.so.4
#17 0x000000368dc06bfc in ?? () from /usr/lib64/libQtGui.so.4
#18 0x0000003cb9e3749b in g_main_context_dispatch ()
   from /lib64/libglib-2.0.so.0
#19 0x0000003cb9e3ac7d in ?? () from /lib64/libglib-2.0.so.0
#20 0x0000003cb9e3ae3b in g_main_context_iteration ()
   from /lib64/libglib-2.0.so.0
#21 0x000000368ef0a741 in QEventDispatcherGlib::processEvents ()
   from /usr/lib64/libQtCore.so.4
#22 0x000000368dc0647f in ?? () from /usr/lib64/libQtGui.so.4
#23 0x000000368eee98a8 in QEventLoop::processEvents ()
   from /usr/lib64/libQtCore.so.4
#24 0x000000368eee9a85 in QEventLoop::exec () from /usr/lib64/libQtCore.so.4
#25 0x000000368eeecbc7 in QCoreApplication::exec ()
   from /usr/lib64/libQtCore.so.4
#26 0x000000369043cbb2 in kdemain () from /usr/lib64/libkdeinit4_kwin.so
#27 0x0000003cb861e32a in __libc_start_main () from /lib64/libc.so.6
#28 0x00000000004007e9 in _start ()
#0  0x0000003cb86a6251 in nanosleep () from /lib64/libc.so.6

Version-Release number of selected component (if applicable):
kdebase-4.0.3-9.fc9.x86_64

How reproducible:
sometime

Steps to Reproduce:
1.run krusader,opera,jabbim,ktorrent in sys.tray and amarok
2.wait a few second
3.kwin crashed
  
Actual results:
kwin sometime crashed

Expected results:
kwin not crashed

https://bugzilla.redhat.com/show_bug.cgi?id=445145