[parisc-linux] Re: [Fwd: Parisc - Linux on a HP-UX C8000 machine]

[Thibaut VARENE]

On 2/10/06, Grant Grundler <grundler at parisc-linux.org> wrote:
> On Fri, Feb 10, 2006 at 01:51:16AM +0100, Roel Teuwen wrote:
> ...
> > I see at least a few problems with my C8000 running linux. First of
> > all, I did not yet have any time to test it. Secondly, my C8000
> > contains PA8900 processors which I don't think anyone has tried yet.
>
> I've been trying some rp3440's with pa8800 processors over
> the past 18 monthes and we still have problems with the L2
> cache. I'm very slowly making some forward progress on it
> but it's nowhere near debugged.

And btw, I just noticed that the list on pateam.org reports some
"cache issues" with fast A500. Though we believe firmly that L2 and
non-equivalent aliasing might be at fault on PA8800/PA8900, I wonder
if there are still other cache issues, or if the comments on the list
should be cleared. Any update about that? :)

> So right now don't expect more than a single socket to work
> and still see occasion segfaults.

Yeah. Don't use ssh to login to the box. Use telnet ;)

> > By the way, apparently the HWDB doesn't recognize most of the hardware
> > in this machine to map it to useful entries. (PA8800 and PA8900 are
> > missing for example). I have CC'd the parisc-linux mailing list in the
> > hope that someone might know why.
>
> We probably need to clone the new entries from arch/parisc/kernel/hardware.c
> to the php/mysql code that drives the HWDB.
> Any volunteers?

This is not that easy. The underlaying infrastructure of the HWDB is a
really PITA, adding new stuff will probably require a bit more
hacking. I'll try to figure out what needs to be done and will report
about it ;)

BTW, if anyone feels like volunteering for a complete redesign of the
mysql/php infrastructure, please raise a hand!

HTH

T-Bone

--
Thibaut VARENE
http://www.parisc-linux.org/~varenet/