Re: libata/sata_nv latency on NVIDIA CK804 [was Re: AMD64 X2 lost ticks on PM timer]

Bill Rugolsky Jr.
2006-03-15T23:14:28Z

On Wed, Mar 15, 2006 at 05:50:37PM -0500, Jeff Garzik wrote:
> Alas, it is far from that simple :(
>
> The code I linked to isn't in a working state. NV contributed it
> largely as "it worked at one time" documentation of a
> previously-undocumented register interface.
>
> Someone needs to debug it.

Errrr, guess that would me me. Looks like a few interfaces have changed.
I'll put some time in to see whether I can get it to compile and boot.
If it's just a sata_nv issue, the easier solution is to buy a 3ware or
Areca card ... but I'll take a shot at anyway.

[Meanwhile, I still have to switch contexts and look at the long softirq
latencies that at first glance appear to be due to the use of mempool
by the RAID1 bio code.]

-Bill