From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dmitry Potapov <dpotapov@gmail.com>
Subject: Re: 'git add' corrupts repository if the working directory is 
	modified as it runs
Date: Sun, 14 Feb 2010 01:09:23 +0300
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References: <20100211234753.22574.48799.reportbug@gibbs.hungrycats.org>
	 <20100213121238.GA2559@progeny.tock> <20100213133951.GA14352@Knoppix>
	 <201002131539.54142.trast@student.ethz.ch>
	 <20100213162924.GA14623@Knoppix>
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Cc: Thomas Rast <trast@student.ethz.ch>,
	Jonathan Nieder <jrnieder@gmail.com>,
	Zygo Blaxell <zblaxell@gibbs.hungrycats.org>,
	git@vger.kernel.org
To: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
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On Sat, Feb 13, 2010 at 7:29 PM, Ilari Liusvaara
<ilari.liusvaara@elisanet.fi> wrote:
>
> Hmm... One needs to copy the data block at time into temporary buffer
> and use that for feeding zlib and SHA-1. That ensures that whatever
> SHA-1 hashes and zlib compresses are consistent.

If you want this then just compile Git with NO_MMAP = YesPlease
It should solve the described problem.

Dmitry