Message-ID: <4533E7E2.6010506@oracle.com>
Date: Mon, 16 Oct 2006 13:13:22 -0700
From: Zach Brown <zach.brown@oracle.com>
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To: Badari Pulavarty <pbadari@us.ibm.com>
CC: lkml <linux-kernel@vger.kernel.org>, akpm@osdl.org
Subject: Re: AIO, DIO fsx tests failures on 2.6.19-rc1-mm1
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> Here is the easiest case to fix first :)
> simple DIO wrote more than asked for :(
> 
> elm3b29:~ # /root/fsx-linux -N 10000 -o 128000 -r 2048 -w 4096 -Z -R -W
> jnk
> mapped writes DISABLED
> truncating to largest ever: 0x32740
> truncating to largest ever: 0x39212
> truncating to largest ever: 0x3bae9
> short write: 0x17000 bytes instead of 0x14000   <<<<<<

So the answer is that -rc1-mm1 doesn't quite have the most recent
version of this patch.  Grab the final patch at the end of this post
from Andrew:

	http://lkml.org/lkml/2006/10/11/234

It fixes up a misunderstanding that came from
generic_file_buffered_write()'s habit of adding its 'written' input into
the amount of bytes it announces having written in its return value.

>From mm-commits it looks like -mm2 will have the full patch.

- z
-
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