linux-kernel - RE: Possible regression of LBA48 support for piix

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Message-ID: <A9C151C7BD19EC47976D4AA14CF277A8BC64DFB301@HMCEXMBX01CLUS.hmcikoula.com>
Date:	Thu, 17 Dec 2009 12:34:08 +0100
From:	Romain Kubany <rkubany@...ula.com>
To:	Jeff Garzik <jeff@...zik.org>
CC:	Mikael Pettersson <mikpe@...uu.se>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>
Subject: RE: Possible regression of LBA48 support for piix

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

-----Message d'origine-----
De : linux-kernel-owner@...r.kernel.org [mailto:linux-kernel-owner@...r.kernel.org] De la part de Jeff Garzik
Envoyé : jeudi 17 décembre 2009 12:04
À : Romain Kubany
Cc : Mikael Pettersson; linux-kernel@...r.kernel.org; linux-ide@...r.kernel.org
Objet : Re: Possible regression of LBA48 support for piix

On 12/17/2009 05:04 AM, Romain Kubany wrote:
> Ok, thanks for the prompt reply and the notice for the cc: :)
> I'm using libata and ata_piix now.
> My disk is seen as "sda" and a lshw is reporting the controler as using "ata_piix" :
>
> # lshw -c STORAGE
>    *-ide
>         description: IDE interface
>         product: 82371AB/EB/MB PIIX4 IDE
>         vendor: Intel Corporation
>         physical id: 7.1
>         bus info: pci@...0:00:07.1
>         logical name: scsi0
>         logical name: scsi1
>         version: 01
>         width: 32 bits
>         clock: 33MHz
>         capabilities: ide bus_master emulated
>         configuration: driver=ata_piix latency=0
>
> But fdisk always recognize the disk as 136.8Gb :
>
> # fdisk -l
>
> Disk /dev/sda: 136.8 GB, 136899993600 bytes
> 16 heads, 63 sectors/track, 265260 cylinders
> Units = cylinders of 1008 * 512 = 516096 bytes
> Disk identifier: 0xd7267427
>
>     Device Boot      Start         End      Blocks   Id  System
> /dev/sda1   *           1         204      102815+  83  Linux
> /dev/sda2             205        2236     1024128   82  Linux swap / Solaris
> /dev/sda3            2237       20805     9358776   83  Linux
>
> Here is the new kernel config file : http://pastebin.com/f65fd472b

I would definitely be interested in seeing the 'dmesg' output for 
libata, and results from a more recent kernel.

	Jeff



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