GNU bug report logs - #2833
23.0.92; Bug in Directory Variables

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Message #42 received at 2833 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: David De La Harpe Golden <david <at> harpegolden.net>
To: Chong Yidong <cyd <at> stupidchicken.com>
Cc: emacs-devel <at> gnu.org, 2833 <at> debbugs.gnu.org
Subject: Re: 23.0.92; Bug in Directory Variables
Date: Thu, 09 Apr 2009 12:03:00 +0100

Chong Yidong wrote:
> The following patch changes the directory local variables code so that
> the cache stores the file atime.  Before using each cache entry, we
> check that against the file modtime.
> 
> This is not an ideal time to make changes of this sort, but I think this
> problem (i.e., inability to detect changes in .dir-locals.el files) is
> quite a serious one.  So please help me review this patch.
>

I suspect the systems where a problem with the patch will be most 
noticeable will be windoze, since there's an extra file attributes call? 
 I have a suspicion you almost might as well abandon the caching given 
the scary timings we've seen for that in the past.  I could be wrong though.

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