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How to debug hang?

From: David Abrahams
Subject: How to debug hang?
Date: Fri, 17 Nov 2006 21:50:27 -0500
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/23.0.0 (gnu/linux)


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.


Dave Abrahams
Boost Consulting

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