Axp-List Archive
Re: UP2K and 2.3.xx kernels

Subject: Re: UP2K and 2.3.xx kernels
From: Robert Williams (bob@bob.usuhs.mil)
Date: Sat Apr 1 05:38:05 2000


W Bauske wrote:

> I'd like to switch to a 2.3.xx kernel on my UP2K
> and am wondering if anyone is running one,

I was running 2.3.99pre3 on my UP1000
for a short time and had a few
problems, so I dropped back to a patched 2.2.14.

> I've installed a Promise
> UATA66 PCI card in it and am looking at installing
> several large UATA66 drives. I've got 3 40GB Maxtors
> and a 26GB Quantum for tests. One thing I noticed is
> the Promise card doesn't work on hose 1. On hose 0,
> it's recognized and the disks are seen.

What is hose 1 and 0? PCI slots?
Take a look at /proc/pci, and the IRQs listed there.
I posted recently about what appeared to be conflicts there.

> Another thing that's interesting is that whether I use a
> disk on the Cypress 82C693 or the Promise card, the
> performance is not at all good. I get at most 4.3MB/sec
> using drives I know are capable of 15-28MB/sec on x86
> boxes.

I'm getting 21 MB/sec (hdparm -T -t) sustained on the
on-board AL UDMA33 with a 7500 RPM 13 Gig Maxtor,
and 17 MB/sec with a 5000 RPM 40 Gig Maxtor, but
again that's with the on-board 33.

> I need to run SMP and the Promise needs to run/recognize
> the IDE drives correctly. That's my main interest in 2.3.xx.

You might try the latest Unified IDE patches on 2.2.14, but
again, I had problems with my UP1000, not related much to
the UP2000.

Bob Williams

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