Emacs looping

[Lennart Borgman (gmail)]

Sometimes Emacs starts eating CPU. Unfortunately I see this with my 
patched Emacs. I have not seen this until today, but I have tested some 
things today that I have not touched for a long while.

I can reproduce the problem. It often (perhaps always) happens after an 
indent region in mumamo, but sometimes after other actions too (but 
sometimes not after the same action). I tried to find out where the loop 
is, but I can't find it. Even if I kill all the timers Emacs goes on 
looping. But it is most of the time still responsive. (But no other 
program is...)

Sometimes the looping stops a while after I have killed all buffers, 
sometimes not.

It looks to me like a problem with screen update, but I am not at all 
sure about this. (In that case overlays might be involved.)

GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600) of 2008-05-06 (patched)