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SubjectRe: Sparc SMP 2.2.x spin_lock - More Data...
On Mon, 6 Sep 1999, Wakko Warner wrote:
>
> I bought a sparc from a friend of mine about 3-4 months ago. It's a Force
> Sparc-10 board with 2 Supersparc 50mhz cpus. the board only has 32mb of ram
> (fine for me, it's not my primary machine). I don't have a framebuffer so
> the related options in the kernel are not enabled.
>
> [wakko@sparq:/home/wakko] uname -a
> Linux sparq 2.2.7 #3 SMP Sat May 22 22:58:31 EDT 1999 sparc unknown
> [wakko@sparq:/home/wakko]
>
> It has been running 2.2.7 since it came out (there is a 1 line patch that
> has to be made to arch/sparc/mm/iommu.c because it hangs) without any
> problems. The machine has been up for 43 days (last power outtage was 43
> days ago).

I don't know what you're doing with the machine, but these things tend not
to happen to a machine sitting their idle. But run a million hit/day web
server, or a news server taking a full feed (which is what I'm doing on these
two machines), and race conditions and the like tend to surface much faster.

It's not impossible that the problem isn't specific to Ross Hypersparc
as opposed to Supersparc (was that Texas Instruments?).

I also haven't tried 2.2.7, I kept hearing evil things about it, some
security related. Maybe it would be worth a try.

> I'm curious, what's the case for your 670 look like? Mine is a 630MP and my
> friend has a 490. I guess it would be a 690 since the card from mine is in
> his (I didn't want the 600, I wanted the sparc10)

As I mentioned, the 4/670's are retired, but the 670 is perhaps 50% again
as wide as the 630 case, they have a 12-slot VME cage with drive bays on top of
that. They're large, heavy, and suck an enourmous amount of electricity and
kick out a large amount of heat which was the primary incentive for their
retirement.


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