From: Jeff Garzik <jeff@garzik.org>
To: Romain Kubany <rkubany@ikoula.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>
Subject: Re: Possible regression of LBA48 support for piix
Date: Thu, 17 Dec 2009 07:02:02 -0500 [thread overview]
Message-ID: <4B2A1DBA.3070300@garzik.org> (raw)
In-Reply-To: <A9C151C7BD19EC47976D4AA14CF277A8BC64DFB301@HMCEXMBX01CLUS.hmcikoula.com>
On 12/17/2009 06:34 AM, Romain Kubany wrote:
> Thanks for your concern. :)
>
> Here is the full dmesg output : http://pastebin.com/f484004a5 (2.6.28 with same config as in my previous mail)
>
> I'm going to test a 2.6.32.1 kernel and similar config
[ 0.804002] ata1.00: ATA-0: Virtual HD, 1.1.0, max MWDMA2
[ 0.804002] ata1.00: 267382800 sectors, multi 128: LBA
For starters, the virtual disk is reporting ATA version 0. That means
the disk is telling us it does not support LBA48 or other advanced
features. libata (and probably IDE, too) happily obliges.
That sounds like either a broken emulation, or some information returned
from the virtual disk got zeroed somehow.
Jeff
next prev parent reply other threads:[~2009-12-17 12:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <A9C151C7BD19EC47976D4AA14CF277A8BC64DFB2AF@HMCEXMBX01CLUS.hmcikoula.com>
[not found] ` <19241.63911.160765.909812@pilspetsen.it.uu.se>
2009-12-17 10:04 ` Possible regression of LBA48 support for piix Romain Kubany
2009-12-17 11:03 ` Jeff Garzik
2009-12-17 11:34 ` Romain Kubany
2009-12-17 12:02 ` Jeff Garzik [this message]
2009-12-17 12:05 ` Jeff Garzik
2009-12-17 12:07 ` Romain Kubany
2009-12-17 12:22 ` Jeff Garzik
2009-12-17 13:33 ` Bartlomiej Zolnierkiewicz
2009-12-18 13:36 ` Romain Kubany
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