Version:            (using KDE KDE 3.3.2)
Installed from:    Gentoo Packages

This happened just during normal usage. I was just typing in the document, with several views open and about eight or nine files, and Kate crashed without any provocation. Here is the backtrace:

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 8457)]
[New Thread 32769 (LWP 3547)]
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 8457)]
[New Thread 32769 (LWP 3547)]
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 8457)]
[New Thread 32769 (LWP 3547)]
[KCrash handler]
#6  0x4105c6d1 in QGList::find(void*, bool) () from /usr/qt/3/lib/libqt-mt.so.3
#7  0x4105c279 in QGList::remove(void*) () from /usr/qt/3/lib/libqt-mt.so.3
#8  0x4183181c in KateCodeFoldingTree::removeEnding(KateCodeFoldingNode*, unsigned) () from /usr/kde/3.3/lib/kde3/libkatepart.so
#9  0x41833935 in KateCodeFoldingTree::cleanupUnneededNodes(unsigned) ()
   from /usr/kde/3.3/lib/kde3/libkatepart.so
#10 0x41830c02 in KateCodeFoldingTree::updateLine(unsigned, QMemArray<signed char>*, bool*, bool) () from /usr/kde/3.3/lib/kde3/libkatepart.so
#11 0x417b67aa in KateBuffer::doHighlight(KateBufBlock*, unsigned, unsigned, bool) () from /usr/kde/3.3/lib/kde3/libkatepart.so
#12 0x417b4555 in KateBuffer::editEnd() ()
   from /usr/kde/3.3/lib/kde3/libkatepart.so
#13 0x417dac96 in KateDocument::editEnd() ()
   from /usr/kde/3.3/lib/kde3/libkatepart.so
#14 0x417e34e5 in KateDocument::newLine(KateTextCursor&, KateViewInternal*) ()
   from /usr/kde/3.3/lib/kde3/libkatepart.so
#15 0x000000c6 in ?? ()
#16 0x00000001 in ?? ()
#17 0x08d35510 in ?? ()
#18 0x08247660 in ?? ()
#19 0x00000003 in ?? ()
#20 0x000000c6 in ?? ()
#21 0xbfffe270 in ?? ()
#22 0x4188b408 in vtable for KateTextCursor ()
   from /usr/kde/3.3/lib/kde3/libkatepart.so
#23 0x000000c7 in ?? ()
#24 0x00000003 in ?? ()
#25 0x08d35510 in ?? ()
#26 0x08eed290 in ?? ()