linux-kernel - Re: [git patches] libata updates for 2.6.37

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Date:	Tue, 30 Nov 2010 11:31:50 -0500
From:	Kyle McMartin <kyle@...artin.ca>
To:	Tejun Heo <tj@...nel.org>
Cc:	Kyle McMartin <kyle@...artin.ca>, Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-ide@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [git patches] libata updates for 2.6.37

On Tue, Nov 30, 2010 at 05:29:06PM +0100, Tejun Heo wrote:
> > Be happy to apply any debug patches, but I plan on replacing the drive
> > with a faster one at some point in the next few weeks.
> 
> Can you please apply the following patch and report the resulting
> kernel log?  You're on ahci, right?
> 

Yup, building now.

> diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
> index ebc08d6..b1c39db 100644
> --- a/drivers/ata/libahci.c
> +++ b/drivers/ata/libahci.c
> @@ -1560,6 +1560,10 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
>  	}
> 
>  	/* okay, let's hand over to EH */
> +	if (active_qc && ata_tag_internal(active_qc->tag))
> +		ata_dev_printk(active_qc->dev, KERN_WARNING,
> +			       "ahci: internal command failure, irq_stat=0x%x\n",
> +			       irq_stat);
> 
>  	if (irq_stat & PORT_IRQ_FREEZE)
>  		ata_port_freeze(ap);
> diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
> index 7f77c67..7cf236b 100644
> --- a/drivers/ata/libata-core.c
> +++ b/drivers/ata/libata-core.c
> @@ -1668,6 +1668,10 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
> 
>  	/* perform minimal error analysis */
>  	if (qc->flags & ATA_QCFLAG_FAILED) {
> +		ata_dev_printk(dev, KERN_WARNING,
> +			       "internal command failure: stat=0x%x ehi_desc=\"%s\"\n",
> +			       qc->tf.command, dev->link->eh_info.desc);
> +
>  		if (qc->result_tf.command & (ATA_ERR | ATA_DF))
>  			qc->err_mask |= AC_ERR_DEV;
> 
> 
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