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SubjectRe: Fwd: libata-pmp patch for 3.2.x and later for eSATA Port Multiplier Sil3726
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On Fri, Mar 23, 2012 at 1:55 AM, ANEZAKI, Akira
<fireblade1230@yahoo.co.jp> wrote:
> Hello Gwendal,
>
> Thank you for your information.
> I think ata8 might different from other 3 PMPs. I'll try to update all
> firmware but it is running resync on broken RAID now. So I can't do it soon.
> By the way, both of ata8 and ata9 loses some HDDs also. Are those
> affected by PMPs on ata7 and ata10? Why 3.1.x driver can work?
>
> Best Regards,
> Akira
>
>> Now I see your problem. Indeed on ata7, ata10, we have a problem.
I should have said ata7-ata10. The PMP on these 4 enclosures do not
like SRST at all.
It works with 3.1.x because it does not send SRST with this PMP; but
as I said before, that is not a good behavior [no staggered spin-up,
problem with drives slow to spin-up]

Gwendal.
>> I notice however some messages I did not see before:
>>>> [    4.856382] ata7.15: Port Multiplier 1.1, 0x1095:0x3726 r23, 6 ports, feat 0x1/0x9
>>>> [    4.858742] ata7.00: hard resetting link
>>>> [   14.843039] ata7.00: softreset failed (timeout)
>>>> [   17.836402] ata7.15: qc timeout (cmd 0xe4)
>> The later indicates that the PMP is stuck and the host can not read
>> its internal register.
>> Is it possible that the PMP in these 4 enclosures you are using have a
>> different firmware than the other ones?
>> Firmware 1.0114 is available at:
>> http://www.siliconimage.com/support/searchresults.aspx?pid=26&cat=23
>>
>> From the release notes:
>> """- Fix SRST and initial two RegFIS Problem."""
>>
>> Gwendal.
>
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