From: Alan <alan@lxorguk.ukuu.org.uk>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
"Moore, Eric" <Eric.Moore@lsi.com>, <ric@emc.com>,
"Theodore Tso" <tytso@mit.edu>, "Neil Brown" <neilb@suse.de>,
"H. Peter Anvin" <hpa@zytor.com>,
"Linux-ide" <linux-ide@vger.kernel.org>,
"linux-scsi" <linux-scsi@vger.kernel.org>,
<linux-raid@vger.kernel.org>, "Tejun Heo" <htejun@gmail.com>,
"James Bottomley" <James.Bottomley@SteelEye.com>,
"Mark Lord" <mlord@pobox.com>,
"Jens Axboe" <jens.axboe@oracle.com>,
"Clark, Nathan" <Clark_Nathan@emc.com>,
"Singh, Arvinder" <Singh_Arvinder@emc.com>,
"De Smet, Jochen" <DeSmet_Jochen@emc.com>,
"Farmer, Matt" <Farmer_Matt@emc.com>,
<linux-fsdevel@vger.kernel.org>,
"Mizar, Sunita" <Mizar_Sunita@emc.com>
Subject: Re: end to end error recovery musings
Date: Tue, 27 Feb 2007 23:39:46 +0000 [thread overview]
Message-ID: <20070227233946.7ad33a50@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <yq1r6sb7733.fsf@sermon.lab.mkp.net>
> Not sure you're up-to-date on the T10 data integrity feature.
> Essentially it's an extension of the 520 byte sectors common in disk
I saw the basics but not the detail. Thanks for the explanation it was
most helpful and promises to fix a few things for some controllers.. but
here's a minor bit of passing bad news - quite a few older ATA controllers
can't issue DMA transfers that are not a multiple of 512 bytes without
crapping themselves (eg READ_LONG). Guess we may need to add
ap->i_do_not_suck or similar 8)
On the bright side I believe the Intel ICH is the only one with this
problem (and a workaround) which is SATA capable 8)
Alan
next prev parent reply other threads:[~2007-02-27 23:39 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-27 1:10 end to end error recovery musings Moore, Eric
2007-02-27 16:50 ` Martin K. Petersen
2007-02-27 18:51 ` Ric Wheeler
2007-02-27 19:02 ` Alan
2007-02-27 18:39 ` Andreas Dilger
2007-02-27 19:07 ` Martin K. Petersen
2007-02-27 23:39 ` Alan [this message]
2007-02-27 22:51 ` Martin K. Petersen
2007-02-28 13:46 ` Douglas Gilbert
2007-02-28 17:16 ` Martin K. Petersen
2007-02-28 17:30 ` James Bottomley
2007-02-28 17:42 ` Martin K. Petersen
2007-02-28 17:52 ` James Bottomley
2007-03-01 1:28 ` H. Peter Anvin
2007-03-01 14:25 ` James Bottomley
2007-03-01 17:19 ` H. Peter Anvin
2007-02-28 15:19 ` Moore, Eric
-- strict thread matches above, loose matches on Subject: below --
2007-02-23 14:15 Ric Wheeler
2007-02-24 0:03 ` H. Peter Anvin
2007-02-24 0:37 ` Andreas Dilger
2007-02-24 2:05 ` H. Peter Anvin
2007-02-24 2:32 ` Theodore Tso
2007-02-24 18:39 ` Chris Wedgwood
2007-02-26 5:33 ` Neil Brown
2007-02-26 13:25 ` Theodore Tso
2007-02-26 15:15 ` Alan
2007-02-26 15:18 ` Ric Wheeler
2007-02-26 17:01 ` Alan
2007-02-26 16:42 ` Ric Wheeler
2007-02-26 15:17 ` James Bottomley
2007-02-26 18:59 ` H. Peter Anvin
2007-02-26 22:46 ` Jeff Garzik
2007-02-26 22:53 ` Ric Wheeler
2007-02-27 1:19 ` Alan
2007-02-26 6:01 ` Douglas Gilbert
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