Re: Resets on sil3124 & sil3726 PMP

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Hello, Rusty.

Rusty Conover wrote:
> I'm having some trouble with my e-SATA ports being reset.  I'm testing
> 2.6.22.1 with the 20070808 patch tarball on a nortec ds-1220 flashed to
> Silicon Image bios version 6.4.09 (the latest).
> 
> I'm testing with 6 500gig SATA drives shown as:
> 
> WD5000AAKS-22TMA0, 12.01C01, max UDMA/133
> 
> The error I'm getting is:
> 
> ata3.04: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x2 frozen
> ata3.04: cmd 61/00:08:3f:c9:00/04:00:00:00:00/40 tag 1 cdb 0x0 data
> 524288 out
>          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
> ata3.15: hard resetting link
> ata3.15: SATA link up 3.0 Gbps (SStatus 123 SControl 0)
> ata3.00: hard resetting link
> ata3.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> ata3.01: hard resetting link
> ata3.01: SATA link down (SStatus 0 SControl 300)
> ata3.02: hard resetting link
> ata3.02: SATA link down (SStatus 0 SControl 300)
> ata3.03: hard resetting link
> ata3.03: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> ata3.04: hard resetting link
> ata3.04: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> ata3.05: hard resetting link
> ata3.05: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ata3.00: configured for UDMA/100
> ata3.03: configured for UDMA/100
> ata3.04: configured for UDMA/100
> ata3: EH complete
> 
> This is happening under moderate load, but it does appear to recover and
> have all of the drives come back.  I'd be happy to provide a full dmesg
> log if desired.
> 
> If you have any ideas how I can work around this or what's causing the
> problem it would be greatly appreciated.

* Please post kernel log including boot messages and errors.

* Please post the result of 'hdparm -I /dev/sdX' where sdX is the
offending device.

* Are the errors localized to ata3.04 or are other drives affected too?

* If you keep the machine running, libata will fall back to 1.5Gbps
after several such errors.  Do the errors go away after falling back to
1.5Gbps?

Thanks.

-- 
tejun
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