linux-kernel - Re: [QUESTION] ATA: abnormal status 0x80 on port 0xCC07

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Message-ID: <6bffcb0e0702061654x4ed237c1mdb619b9ab513283c@mail.gmail.com>
Date:	Wed, 7 Feb 2007 01:54:32 +0100
From:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>
To:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>
Cc:	"Jeff Garzik" <jeff@...zik.org>, linux-ide@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [QUESTION] ATA: abnormal status 0x80 on port 0xCC07

On 07/02/07, Michal Piotrowski <michal.k.k.piotrowski@...il.com> wrote:
> On 06/02/07, Michal Piotrowski <michal.k.k.piotrowski@...il.com> wrote:
[..]
> > I'll revert this patch.
> >
> > commit 7a0f1c8a4b1052da7efc7715e2e557255b632712
> > Author: Lennert Buytenhek <buytenh@...tstofly.org>
> > Date:   Mon Jan 29 13:28:47 2007 +0100
> >
> >     ata_if_xfermask() word 51 fix
> >
> >     If word 53 bit 1 isn't set, the maximum PIO mode is indicated by
> >     the upper 8 bits of word 51, not the lower 8 bits.  Fixes PIO mode
> >     detection on old Compact Flash cards.
> >
> >     Signed-off-by: Lennert Buytenhek <buytenh@...tstofly.org>
> >     Signed-off-by: Jeff Garzik <jeff@...zik.org>
> >
>
> It's not this patch. Maybe this one?
>
> commit 49c8042996c84f0df6c49ea2e28a7ef38cd7d773
> Author: Brian King <brking@...ux.vnet.ibm.com>
> Date:   Tue Jan 30 11:32:26 2007 -0600
>
>     libata: Initialize nbytes for internal sg commands
>
>     Some LLDDs, like ipr, use nbytes and pad_len to determine
>     the total data transfer length of a command. Make sure
>     nbytes gets initialized for internally generated commands.
>
>     Signed-off-by: Brian King <brking@...ux.vnet.ibm.com>
>     Signed-off-by: Jeff Garzik <jeff@...zik.org>
>
> diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
> index cf70702..667acd2 100644
> --- a/drivers/ata/libata-core.c
> +++ b/drivers/ata/libata-core.c
> @@ -1250,6 +1250,7 @@ unsigned ata_exec_internal_sg(struct ata
>
>                 ata_sg_init(qc, sg, n_elem);
>                 qc->nsect = buflen / ATA_SECT_SIZE;
> +               qc->nbytes = buflen;
>         }
>
>         qc->private_data = &wait;
>
> It has something to do with SCSI commands.

Kernel still hangs...

Regards,
Michal

-- 
Michal K. K. Piotrowski
LTG - Linux Testers Group
(http://www.stardust.webpages.pl/ltg/)
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