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Re: the thing with the binary zeroes

To: Andi Kleen <ak@xxxxxx>
Subject: Re: the thing with the binary zeroes
From: martin f krafft <madduck@xxxxxxxxxxx>
Date: Fri, 11 Feb 2005 15:06:20 +0100
Cc: linux xfs mailing list <linux-xfs@xxxxxxxxxxx>
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also sprach Andi Kleen <ak@xxxxxx> [2005.02.11.1455 +0100]:
> Well, it's the full story. Nothing to add.

Thank you for taking your time to help me understand the whole
picture then!

Would it be possible to extend the FAQ with some more information?
Whom would I have to contact?

> It can't. The pointers from the inode to the extents with the data
> are overwritten at this point.

I have heard of cases where booting another (previous) kernel gave
access to the files again. So I guess it can happen that the new
data are written to the same extents in which the old data resided
(for instance, if the file was shortened).

Why would it be possible to access the data with a previous kernel,
but only see zeroes with a newer version?

-- 
martin;              (greetings from the heart of the sun.)
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