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SubjectRe: sata errors with Seagate 1.5TB on AMD 780G/SB700 motherboard
On Tuesday, October 28, 2008 at 17:37, Robert Hancock wrote:
[..]
>> Hard drives (ata1/sda, ata2/sdb, ata3/sdc): Seagate ST31500341AS 1.5TB SATA
[..]
>> 19:24:26 ata2: exception Emask 0x50 SAct 0x0 SErr 0x90a02 action 0xe frozen
>> 19:24:26 ata2: irq_stat 0x00400000, PHY RDY changed
>> 19:24:26 ata2: SError: { RecovComm Persist HostInt PHYRdyChg 10B8B }
[..]
> Sounds like the drive and the controller are unhappy with each other, or
> there's some kind of communications or hardware problem. Not likely a
> kernel issue.
>
> It's unclear if limiting to 1.5 Gbps would help, you could try it and see..

It seems the solution is to disable write caching. So far no errors, and
other people confirm this solution.

Anyway Seagate (inofficially) claims it's a driver issue in Linux - from
http://forums.seagate.com/stx/board/message?board.id=ata_drives&thread.id=2390&view=by_date_ascending&page=6

"We already know about the Linux issue, it is indeed a kernel error
causing the problem as it was explained to me by one of our developers."

Regards,

Oskar


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