Version:            (using KDE 4.3.4)
Installed from:    Gentoo Packages

Hello, kwrite have crash when editing a css:
Application: KWrite (kdeinit4), signal: Segmentation fault
Traceback (most recent call last):
  File "/usr/share/gdb/auto-load/usr/lib64/libgobject-2.0.so.0.2200.3-gdb.py", line 9, in <module>
    from gobject import register
  File "/usr/share/glib-2.0/gdb/gobject.py", line 3, in <module>
    import gdb.backtrace
ImportError: No module named backtrace
The current source language is "auto; currently c".
[KCrash Handler]
#5  KateLineLayout::viewLineCount (this=0x0) at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kate/render/katelinelayout.cpp:173
#6  0x00007fd1ed3c29ea in KateLayoutCache::viewLine (this=0x1555970, realCursor=...) at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kate/render/katelayoutcache.cpp:392
#7  0x00007fd1ed3c3010 in KateLayoutCache::textLayout (this=0x1555970, realCursor=...) at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kate/render/katelayoutcache.cpp:334
#8  0x00007fd1ed41b08c in KateViewInternal::makeVisible (this=0x155d6d0, c=..., endCol=-1, force=false, center=<value optimized out>, calledExternally=false)
    at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kate/view/kateviewinternal.cpp:684
#9  0x00007fd1ed41b6eb in KateViewInternal::updateCursor (this=0x155d6d0, newCursor=..., force=<value optimized out>, center=false, calledExternally=false)
    at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kate/view/kateviewinternal.cpp:1869
#10 0x00007fd1ed41fe64 in KateViewInternal::mousePressEvent (this=0x155d6d0, e=0x7fff2c9d43d0) at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kate/view/kateviewinternal.cpp:2532
#11 0x00007fd1f86d1efb in QWidget::event (this=0x155d6d0, event=0x7fff2c9d43d0) at kernel/qwidget.cpp:7550
#12 0x00007fd1f867d8d5 in QApplicationPrivate::notify_helper (this=0x12d5670, receiver=0x155d6d0, e=0x7fff2c9d43d0) at kernel/qapplication.cpp:4065
#13 0x00007fd1f8685ba3 in QApplication::notify (this=<value optimized out>, receiver=0x155d6d0, e=0x7fff2c9d43d0) at kernel/qapplication.cpp:3767
#14 0x00007fd1f96f35ea in KApplication::notify (this=0x7fff2c9d6290, receiver=0x155d6d0, event=0x7fff2c9d43d0)
    at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kdeui/kernel/kapplication.cpp:302
#15 0x00007fd1fb2c50f3 in QCoreApplication::notifyInternal (this=0x7fff2c9d6290, receiver=0x155d6d0, event=0x7fff2c9d43d0) at kernel/qcoreapplication.cpp:606
#16 0x00007fd1f8687071 in QCoreApplication::sendSpontaneousEvent (receiver=0x155d6d0, event=0x7fff2c9d43d0, alienWidget=0x155d6d0, nativeWidget=0x1334090, buttonDown=<value optimized out>, 
    lastMouseReceiver=...) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#17 QApplicationPrivate::sendMouseEvent (receiver=0x155d6d0, event=0x7fff2c9d43d0, alienWidget=0x155d6d0, nativeWidget=0x1334090, buttonDown=<value optimized out>, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2924
#18 0x00007fd1f86e840c in QETWidget::translateMouseEvent (this=0x1334090, event=<value optimized out>) at kernel/qapplication_x11.cpp:4411
#19 0x00007fd1f86e6f96 in QApplication::x11ProcessEvent (this=0x7fff2c9d6290, event=0x7fff2c9d5dc0) at kernel/qapplication_x11.cpp:3552
#20 0x00007fd1f870d3a4 in x11EventSourceDispatch (s=0x12d92a0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#21 0x00007fd1f7109149 in g_main_dispatch (context=0x12d8040) at gmain.c:1960
#22 IA__g_main_context_dispatch (context=0x12d8040) at gmain.c:2513
#23 0x00007fd1f710cba8 in g_main_context_iterate (context=0x12d8040, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2591
#24 0x00007fd1f710cd5e in IA__g_main_context_iteration (context=0x12d8040, may_block=1) at gmain.c:2654
#25 0x00007fd1fb2ee564 in QEventDispatcherGlib::processEvents (this=0x12d58a0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#26 0x00007fd1f870cb28 in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#27 0x00007fd1fb2c35fe in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007fd1fb2c37f4 in QEventLoop::exec (this=0x7fff2c9d6110, flags=...) at kernel/qeventloop.cpp:197
#29 0x00007fd1fb2c5f30 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#30 0x00007fd1ef3bbbc9 in kdemain (argc=2, argv=0x12a6fe0) at /var/tmp/portage/kde-base/kwrite-4.3.4/work/kwrite-4.3.4/kwrite/kwritemain.cpp:782
#31 0x0000000000407719 in launch (argc=2, _name=0x12ca488 "/usr/bin/kwrite", args=<value optimized out>, cwd=0x0, envc=1, envs=0x12ca4e9 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x12ca4f2 "amber.fw.local;1263853815;46389;6293_TIME16229493") at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kinit/kinit.cpp:677
#32 0x0000000000407ebb in handle_launcher_request (sock=8, who=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kinit/kinit.cpp:1169
#33 0x0000000000408359 in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kinit/kinit.cpp:1362
#34 0x0000000000408f8d in main (argc=2, argv=0x7fff2c9d7ae8, envp=0x7fff2c9d7b00) at /var/tmp/portage/kde-base/kdelibs-4.3.4/work/kdelibs-4.3.4/kinit/kinit.cpp:1793