From: Rob Landley <rob@landley.net>
To: Kyle Moffett <mrmacman_g4@mac.com>
Subject: Re: Which process context does /sbin/hotplug run in?
Date: Mon, 15 May 2006 15:59:09 -0400
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On Monday 15 May 2006 12:17 am, Kyle Moffett wrote:
> > I can CD into them endlessly, and both "ls -lR" and "find ." report
> > cycles in the tree, which surprised me that they had a specific
> > error message for that, actually.  Good enough for me. :)
>
> Odd, I'm unable to replicate that behavior here.  If I run "ls /var/
> sub2/sub2" I don't get any entries.  Find and ls -lR have error
> messages of that because it can occasionally be triggered with
> symlinks and such.

Perhaps I copied it down wrong.  I did this in a 2.6.16 UML instance...

sh-3.00# mount -t tmpfs /tmp /tmp
sh-3.00# cd /tmp
sh-3.00# mkdir woot
sh-3.00# mount --bind woot /var
sh-3.00# cd /var
sh-3.00# mkdir sub
sh-3.00# mount --move /tmp sub
sh-3.00# ls -lR
.:
total 0
drwxrwxrwt  3 root root 60 May 15 15:57 sub

./sub:
total 0
drwxr-xr-x  3 root root 60 May 15 15:57 woot
ls: not listing already-listed directory: ./sub/woot
sh-3.00# find .
.
./sub
find: Filesystem loop detected; `./sub/woot' has the same device number and 
inode as a directory which is 2 levels higher in the filesystem hierarchy.
./sub/woot
sh-3.00#

Works for me. :)

> --
> Simple things should be simple and complex things should be possible
>    -- Alan Kay

And crazy things fun. :)

Rob
-- 
Never bet against the cheap plastic solution.
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