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Date: Fri, 27 Aug 2004 13:40:55 +0200
From: Gergely Tamas <dice@mfa.kfki.hu>
To: Anton Altaparmakov <aia21@cam.ac.uk>
Cc: lkml <linux-kernel@vger.kernel.org>, Andrew Morton <akpm@osdl.org>
Subject: Re: data loss in 2.6.9-rc1-mm1
Message-ID: <20040827114054.GA4467@mfa.kfki.hu>
References: <20040827105543.GA10563@mfa.kfki.hu> <1093604706.5994.54.camel@imp.csi.cam.ac.uk>
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Hi!

 > The difference is exactly 4096 bytes, i.e. 1 whole page.  Seems like an
 > off-by-one error somewhere in the file access or page cache code.
 > 
 > It would be interesting to know whether the read is truncated or whether
 > the write is truncated.  So could you tell us what is returned by:
 > 
 > cat testfile | wc -c

$ cat testfile | wc -c
10481664

 > Also your .config would probably be helpful.

[ http://dice.mfa.kfki.hu/dot.config-2.6.9-rc1-mm1.gz ]

Thanks,
Gergely