linux-kernel - Re: HPA patches

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Date:	Wed, 28 Mar 2007 01:08:52 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	kyle@...onical.com
Subject: Re: HPA patches

On Fri, Mar 23, 2007 at 07:13:21PM +0000, Alan Cox wrote:
> For reference this is what I am currently using with 2.6.21-rc4-mm1 and
> it is working for all my test cases so far: Its basically Kyle's patch
> with a libata switch to turn it on/off and some minor fixups from
> the original patch as posted

Fails for me on a Macbook Pro with:

ata1: PATA max UDMA/133 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x000140b0 irq 14
ata2: PATA max UDMA/133 cmd 0x00010170 ctl 0x00010376 bmdma 0x000140b8 irq 15
scsi0: ata_piix
ata1.00: ATAPI, max UDMA/66
ata1.00: configured for UDMA/66
scsi1 : ata_piix
ATA: abornaml status 0x7f on port 0x00010177
scsi 0:0:0:0: CD-ROM MATSHITA DVD-R UJ-857D KCV9 PQ : 0 ANSI: 5
ata_piix 0000:00:1f.2: MAP [ P0 p" XX XX ]
ata_piix 0000:00:1f.2: invalid MAP value 0
ata3: SATA max UDMA/133 cmd 0x000140c8 ctl 0x000140e6 bmdma 0x000140a0 irq 20
ata4: SATA max UDMA/133 cmd 0x000140c0 ctl 0x000140e2 bmdma 0x000140a8 irq 20
scsi2 : ata_piix
ATA: abnormal status 0x7F on port 0x000140cf
ATA: abnormal status 0x7F on port 0x000140cf
ATA: abnormal status 0x7F on port 0x000140cf
ata3.01: ata_hpa_resize 1: sectors = 234441648, hpa_sectors = 0
ata3.01: ATA-8: FUJITSU MHW2120BH, 00810013, max UDMA/100
ata3.01: 234441648 sectors, multi 16: LBA48 NCQ (depth 0/32)
ata3.01: failed to set xfermode (err_mask=0x40)
ata3: failed to recover some devices, retrying in 5 secs
ATA: abnormal status 0x7F on port 0x000140cf
ATA: abnormal status 0x7F on port 0x000140cf
ATA: abnormal status 0x7F on port 0x000140cf
ata3.01: ata_hpa_resize 1: sectors = 234441648, hpa_sectors = 0
ata3.01: failed to set xfermode (err_mask=0x40)
ata3.01: limiting speed to UDMA/100:PIO3
ata3: failed to recover some devices, retrying in 5 secs
ATA: abnormal status 0x7F on port 0x000140cf
ATA: abnormal status 0x7F on port 0x000140cf
ATA: abnormal status 0x7F on port 0x000140cf
ata3.01: qc timeout (cmd 0x27)
ata3.01: ata_hpa_resize 1: sectors = 234441648, hpa_sectors = 0
ata3.01: failed to set xfermode (err_mask=0x40)
ata3.01: disabled
scsi3: ata_piix
ATA: abnormal status 0x7F on port 0x000140c7

and I end up with no root filesystem. Reverting the patch leaves things 
working. This is the ubuntu tree - I can try libata-dev if you think 
there's likely to be any relevant difference.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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