Re: Fixes for nforce2 hard lockup, apic, io-apic, udma133 covered

[Ian Kumlien]

Resend due to no CC...

On Sun, 2003-12-14 at 14:11, Ross Dickson wrote:
> I had a lockup on a boot so I am trying a bit more conservative with
> 
> 1000UL and ndelay(400) 
> 
> I don't think anyone should try any less than this but hey?
> 
> This gives my system a safety margin of 16 apic counts.
> The v1 patch on my system typically gave a safety delay of 13 counts.
> 
> The performance hit with the v2 is still less than with the v1.
> With v2 additional delay would only have been present on 2 out of 10
> instead of 10 out of 10 with v1.

13h 18min here now, with 800UL 100ns

Works like a charm. It seems like we are just avoiding a timer race with
some values...  ie more delay might not solve the problem.

-- 
Ian Kumlien <pomac () vapor ! com> -- http://pomac.netswarm.net

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