linux-kernel - Re: sata_via: SError: { UnrecovData Proto TrStaTrns }

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Date:	Mon, 05 Oct 2009 19:58:40 -0600
From:	Robert Hancock <hancockrwd@...il.com>
To:	Krzysztof Halasa <khc@...waw.pl>
CC:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: sata_via: SError: { UnrecovData Proto TrStaTrns }

On 10/05/2009 07:18 AM, Krzysztof Halasa wrote:
> Hi,
>
> What could that be?
> VIA VT6421A mini-PCI card and SATA SSD from Transcend. IXP425 (ARM)
> little-endian CPU. 128 MB RAM - VT6421A can access only the first 64 MB
> of system RAM, but there is bounce buffering (a la swiotlb) for the
> rest.
>
> Sometimes it produces:
>
> ata1.00: exception Emask 0x12 SAct 0x0 SErr 0x1000500 action 0x6
> ata1.00: BMDMA stat 0x5
> ata1: SError: { UnrecovData Proto TrStaTrns }
> ata1.00: cmd c8/00:20:b7:18:38/00:00:00:00:00/e0 tag 0 dma 16384 in
>           res 51/40:20:b7:18:38/00:00:00:00:00/e0 Emask 0x12 (ATA bus error)
> ata1.00: status: { DRDY ERR }
> ata1.00: error: { UNC }
> ata1: hard resetting link
> ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
> ata1.00: configured for UDMA/100
> ata1: EH complete
>
> Any ideas?

Presumably a SATA bus communication error. Are you sure the SATA 
connections and cable are good?
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