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From: Zach Brown <zach.brown@oracle.com>
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
Date: Mon, 16 Oct 2006 13:13:22 -0700	[thread overview]
Message-ID: <4533E7E2.6010506@oracle.com> (raw)
In-Reply-To: <1161021586.32606.6.camel@dyn9047017100.beaverton.ibm.com>


> 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

  reply	other threads:[~2006-10-16 20:13 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-16 15:42 AIO, DIO fsx tests failures on 2.6.19-rc1-mm1 Badari Pulavarty
2006-10-16 17:51 ` Zach Brown
2006-10-16 17:59   ` Badari Pulavarty
2006-10-16 20:13     ` Zach Brown [this message]
2006-10-16 20:38       ` Badari Pulavarty
2006-10-16 20:59         ` Andrew Morton
2006-10-16 21:21           ` Zach Brown
2006-10-17 22:31           ` Badari Pulavarty
2006-10-17 23:10             ` Andrew Morton
2006-10-17 23:38               ` Badari Pulavarty
2006-10-18 15:44             ` Chris Mason

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