Version:           3.1.1 (using 4.1.1 (KDE 4.1.0 (4.1 >= 20080722)) "release 26.3", KDE:KDE4:Factory:Desktop / openSUSE_11.0)
Compiler:          gcc
OS:                Linux (x86_64) release 2.6.25.16-0.1-default

Hi,

Kate crahed when pasting in a new document one piece of text from the X selection (middle click). I couldn't reproduce the bug.
Here is the backtrace:

Application: Kate (kate), signal SIGSEGV
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[Thread debugging using libthread_db enabled]
[New Thread 0x7fc4992e1700 (LWP 3621)]
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[KCrash handler]
#5  0x00007fc493577fd2 in QTextLine::cursorToX () from /usr/lib64/libQtGui.so.4
#6  0x00007fc48def790d in ?? () from /usr/lib64/kde4/katepart.so
#7  0x00007fc48def7ab1 in ?? () from /usr/lib64/kde4/katepart.so
#8  0x00007fc49384d7b5 in ?? () from /usr/lib64/libQtGui.so.4
#9  0x00007fc4933f71aa in QWidget::updateMicroFocus ()
   from /usr/lib64/libQtGui.so.4
#10 0x00007fc48def9ec0 in ?? () from /usr/lib64/kde4/katepart.so
#11 0x00007fc48defd8ab in ?? () from /usr/lib64/kde4/katepart.so
#12 0x00007fc48de807f4 in ?? () from /usr/lib64/kde4/katepart.so
#13 0x00007fc48de85297 in ?? () from /usr/lib64/kde4/katepart.so
#14 0x00007fc48def9221 in ?? () from /usr/lib64/kde4/katepart.so
#15 0x00007fc48defa758 in ?? () from /usr/lib64/kde4/katepart.so
#16 0x00007fc48def8e7d in ?? () from /usr/lib64/kde4/katepart.so
#17 0x00007fc496114188 in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib64/libQtCore.so.4
#18 0x00007fc4933b58fc in QApplicationPrivate::notify_helper ()
   from /usr/lib64/libQtGui.so.4
#19 0x00007fc4933bcc41 in QApplication::notify () from /usr/lib64/libQtGui.so.4
#20 0x00007fc497576d1b in KApplication::notify () from /usr/lib64/libkdeui.so.5
#21 0x00007fc496114e9c in QCoreApplication::notifyInternal ()
   from /usr/lib64/libQtCore.so.4
#22 0x00007fc493433014 in ?? () from /usr/lib64/libQtGui.so.4
#23 0x00007fc4934350ef in ?? () from /usr/lib64/libQtGui.so.4
#24 0x00007fc4934122a5 in QApplication::x11ProcessEvent ()
   from /usr/lib64/libQtGui.so.4
#25 0x00007fc49343669c in ?? () from /usr/lib64/libQtGui.so.4
#26 0x00007fc4961137f2 in QEventLoop::processEvents ()
   from /usr/lib64/libQtCore.so.4
#27 0x00007fc496113985 in QEventLoop::exec () from /usr/lib64/libQtCore.so.4
#28 0x00007fc496115a25 in QCoreApplication::exec ()
   from /usr/lib64/libQtCore.so.4
#29 0x00007fc498efee9d in kdemain () from /usr/lib64/libkdeinit4_kate.so
#30 0x00007fc491b41436 in __libc_start_main () from /lib64/libc.so.6
#31 0x00000000004008c9 in _start ()
#0  0x00007fc491bc5230 in nanosleep () from /lib64/libc.so.6