[9fans] ide fix?

[9fans] ide fix?

[erik quanstrom]

after a week of fighting with an atom with ich7r sata in
ide mode, i finally found the secret sauce that keeps it
from "hanging."  i pushed out a changed
quanstro/9load-e820 and quanstro/sd which boot on my
atom machine in ide mode without causing interrupt storms.
other changes were included work around ahci power quirks
for this chipset, if your bios supports it, i would recommend
ahci mode.  i also pushed out a version of ether8169 as
quanstro/8169 that supports the particular 8169 macs that
are in my atom machine (and jumbo frames).

i have a feeling that these changes may be helpful in
correcting other intel ich-based ide problems.  i've got
an intel ich6-based machine that has exhibited similar
symptoms at work that i hope to test tomorrow.

i'll be interested to hear if these changes work for
other people.

- erik

Re: [9fans] ide fix?

[Devon H. O'Dell]

2009/7/13 erik quanstrom <quanstro@quanstro.net>:
> after a week of fighting with an atom with ich7r sata in
> ide mode, i finally found the secret sauce that keeps it
> from "hanging."  i pushed out a changed
> quanstro/9load-e820 and quanstro/sd which boot on my
> atom machine in ide mode without causing interrupt storms.
> other changes were included work around ahci power quirks
> for this chipset, if your bios supports it, i would recommend
> ahci mode.  i also pushed out a version of ether8169 as
> quanstro/8169 that supports the particular 8169 macs that
> are in my atom machine (and jumbo frames).
>
> i have a feeling that these changes may be helpful in
> correcting other intel ich-based ide problems.  i've got
> an intel ich6-based machine that has exhibited similar
> symptoms at work that i hope to test tomorrow.
>
> i'll be interested to hear if these changes work for
> other people.
>
> - erik

This sounds promising for that ICH laptop with the 320G drive that
magically doesn't work (though the 120GB one that was in it was fine).
How do I get this on a disc to try it out?

--dho

Re: [9fans] ide fix?

[erik quanstrom]

> This sounds promising for that ICH laptop with the 320G drive that
> magically doesn't work (though the 120GB one that was in it was fine).
> How do I get this on a disc to try it out?

can you pxe?

- erik

Re: [9fans] ide fix?

[Devon H. O'Dell]

2009/7/13 erik quanstrom <quanstro@quanstro.net>:
>> This sounds promising for that ICH laptop with the 320G drive that
>> magically doesn't work (though the 120GB one that was in it was fine).
>> How do I get this on a disc to try it out?
>
> can you pxe?

Not easily. The issue was a few bits in PCI register space that we
weren't entirely sure what they were for but you suspected that they
needed to be set up differently for some AHCI power management bits or
something like that.

--dho

> - erik
>
>

Re: [9fans] ide fix?

[erik quanstrom]

> This sounds promising for that ICH laptop with the 320G drive that
> magically doesn't work (though the 120GB one that was in it was fine).
> How do I get this on a disc to try it out?

what was the symptom again?

- erik