Date: Fri, 28 Dec 2001 00:40:02 -0800 (PST) From: "Crist J . Clark" <cjc@FreeBSD.ORG> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/33235: find terminates with "find: fts_read: Permission denied" Message-ID: <200112280840.fBS8e2c85293@freefall.freebsd.org>
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The following reply was made to PR bin/33235; it has been noted by GNATS.
From: "Crist J . Clark" <cjc@FreeBSD.ORG>
To: Heikki Suonsivu <hsu@bbnetworks.net>
Cc: FreeBSD-gnats-submit@FreeBSD.ORG
Subject: Re: bin/33235: find terminates with "find: fts_read: Permission denied"
Date: Fri, 28 Dec 2001 00:31:58 -0800
On Thu, Dec 27, 2001 at 12:05:53PM +0200, Heikki Suonsivu wrote:
[snip]
> >How-To-Repeat:
>
> On one of my hosts this will terminate when run as nobody:
>
> find -s / \! \( -fstype ufs \) -prune -or -path /tmp -prune -or -path /usr/tmp
> -prune -or -path /var/tmp -prune -or -print
> ...
> /xx/sorted/2001/12/13/image_2001_1213_142409_01.jpg
> /xx/sorted/2001/12/13/image_2001_1213_142418_01.jpg
> /xx/sorted/2001/12/13/imagfind: fts_read: Permission denied
> e_2001_1213_142430_01.jpg
> /xx/sorted/2001/12/13/image_2001_1213_142436_01.jpg
> /xx/sorted/2001/12/14
> /xx/sorted/2001/12/14/image_2001_1214_050908_01.jpg
> /xx/sorted/2001/12/14/image_2001_1214_050910_01.jpg
> /xx/sorted/2001/12/14/image_2001_1214_050923_01.jpg
>
> The command is what locate.updatedb uses. I found this when trying to
> figure out why locate database did not contain some of the files which
> certainly were there.
>
> >Fix:
>
> If -s is left out, find completes. Thus, workaround for
> locate.updatedb problem is replacing -s with "| sort" after find, but
> that is not particularly efficient. Find should not consider
> permission denied a fatal error.
A "permission denied" is usually not a fatal error, but in this case,
the fts_read(3) call is getting the error, which shouldn't happen. I
_think_ I understand why this may be happening. When you use the '-s'
switch, there may be an attempt to compare a file name to one that we
cannot read... But I'm not sure how this could happen. Could you give
us a long listing of the portion of file hierarchy (both a little
before and after too) where you think this is failing?
--
"It's always funny until someone gets hurt. Then it's hilarious."
Crist J. Clark | cjclark@alum.mit.edu
| cjclark@jhu.edu
http://people.freebsd.org/~cjc/ | cjc@freebsd.org
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