Re: problem with font lock

[Stefan Monnier]

> i'm experiencing an intermittent problem with font lock that i don't
> know how to debug (this is emacs 23.1.91 packaged for debian). every now
> and then, font lock just stops working in most (but not all) of the
> buffers: the extant colors remain, but new text is not coloured at all
> (e.g., if i comment a line out, the line's text retains its initial
> faces instead of switching to the comment face). as i said, i haven't
> found a way to reproduce this behaviour deterministically, and when it
> starts happening i don't see any error message around. so my question
> is: what would you recommend to look at when i enter this state, so that
> i can submit a useful bug report?

Once it's done it's too late.  But you can (setq font-lock-support-mode
nil) in your .emacs and then try to reproduce the problem.  This should
(well, may) give you a usable error message right when the
problem appears.


        Stefan