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Date: Fri, 24 Jun 2005 14:49:43 +0200
From: Olivier Galibert <galibert@pobox.com>
To: David Masover <ninja@slaphack.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Horst von Brand <vonbrand@inf.utfsm.cl>,
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Subject: Re: reiser4 plugins
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On Thu, Jun 23, 2005 at 10:17:06PM -0500, David Masover wrote:
> I was able to recover from bad blocks, though of course no Reiser that I
> know of has had bad block relocation built in...  But I got all my files
> off of it, fortunately.

My experience shows that you've been very, very lucky.  I hope r4 is
better in that regard.

If you want to try with r3, take a well-used partition[1] and copy it
at block level to another partition or a file.  Then zero some random
spans of blocks in the copy and reiserfsck --rebuild-tree it.  My
experience is that you'll usually get the files names and directory
tree but their contents will have been scattered all over the place.

  OG.

[1] I suspect a minimum of fragmentation is in order to see the
problem