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Re: How to debug hang?
From: |
martin rudalics |
Subject: |
Re: How to debug hang? |
Date: |
Sat, 18 Nov 2006 09:58:34 +0100 |
User-agent: |
Mozilla Thunderbird 1.0 (Windows/20041206) |
> I'm trying to debug some kind of a hang that occurs when I try to use
> a font-lock mode I'm developing. I can't get control back by hitting
> `C-g'. I suspected it was a bad (combinatoric) regexp, but I added
> advice before and after re-search-forward that emitted enter/exit
> messages, and when the hang occurs I am seeing an exit message, so I'm
> guessing that's not it. I'm quite stumped now; hoping someone can
> offer a clue.
If a (presumed) bug in font-locking makes Emacs hang during redisplay,
the latter won't be able to display your message. You could try to
write your messages to a dribble file.