linux-kernel - Re: macbook pro dvd playback after suspend Buffer I/O error

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Date:	Thu, 12 Jun 2008 05:22:17 +0000
From:	"Justin Mattock" <justinmattock@...il.com>
To:	"Tejun Heo" <htejun@...il.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: macbook pro dvd playback after suspend Buffer I/O error

On Thu, Jun 12, 2008 at 4:15 AM, Tejun Heo <htejun@...il.com> wrote:
> Hello,
>
> Please do the followings.
>
> 1. apply the attached patch
> 2. turn on device drivers -> SCSI -> SCSI verbose logging
> 3. rebuild the kernel and boot the new kernel.
> 4. run "sysctl -w dev.scsi.logging_level=1"
> 5. run the suspend/resume test w/ dd and report the result.
>
> Thanks.
>
> --
> tejun
>
> ---
>  drivers/ata/libata-eh.c |    6 ++++++
>  1 file changed, 6 insertions(+)
>
> Index: work/drivers/ata/libata-eh.c
> ===================================================================
> --- work.orig/drivers/ata/libata-eh.c
> +++ work/drivers/ata/libata-eh.c
> @@ -2507,6 +2507,9 @@ static int atapi_eh_clear_ua(struct ata_
>                        return -EIO;
>                }
>
> +               ata_dev_printk(dev, KERN_WARNING, "XXX: TUR err_mask=0x%x sense_key=0x%x\n",
> +                              err_mask, sense_key);
> +
>                if (!err_mask || sense_key != UNIT_ATTENTION)
>                        return 0;
>
> @@ -2516,6 +2519,9 @@ static int atapi_eh_clear_ua(struct ata_
>                                "UNIT ATTENTION (err_mask=0x%x)\n", err_mask);
>                        return -EIO;
>                }
> +
> +               ata_dev_printk(dev, KERN_WARNING, "XXX: REQUEST SENSE err_mask=0x%x ASC=0x%x ASCQ=0x%x\n",
> +                              err_mask, sense_buffer[12], sense_buffer[13]);
>        }
>
>        ata_dev_printk(dev, KERN_WARNING,
>
>

Alright; I'll let you know what happens.
regards;

-- 
Justin P. Mattock
--
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