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Re: Sun Fire x2100 running core 4



On Mon, 2006-03-20 at 18:59 -0500, Sam Varshavchik wrote:
> Gilboa Davara writes:
> 
> > 
> > I'm using Fedora Core on a Tyan Thunder K8WE with two Opteron 270 CPUs.
> > AFAIR the Sun Fire uses the same AMD south-bridge as my Tyan board.
> > More-ever, I've got a number of HP 385 machines that use the exact
> > chipset configuration as the Sun machine, running FC and CentOS; in both
> > cases no stability issues what-so-ever.
> > 
> > In short, it should work out of the box.
> 
> I would advise caution when running an Opteron platform.  It's been my 
> impression that, over time, far more problems crop up on x86_64 than on 
> IA-32 platforms.  I'm running both, and, for the last couple of years, I've 
> many more issues with my Opteron machine than with the Pentium ones.  x86_64 
> really gets less overall testing than IA-32, and that's the results you get.
> 
> Even though things work fine now, any minor kernel rev can suddenly turn out 
> to be broken for your specific chipset combination, while other combinations 
> of Opteron chipsets and hardware work fine.  Right now, for example, the 
> latest kernel I can boot on my dual-Opteron 240 box is 2.6.13.  All later 
> kernels trigger some bizarre bug that apparently results from my specific 
> combination of RAID-1 and Adaptec SCSI controller.  Before I can make much 
> progress with booting, kernels 2.6.14 and later begin spewing "SCSI 
> transmission timeout" errors.  9 times out of 10 the arrays get degraded, 
> and I have to scramble back to 2.6.13 and rebuild.
> 
> The IA-32 box standing next to it, also running RAID-1 and Adaptec SCSI, 
> happily eats 2.6.15, without complaints.
> 
> -- 

I had a couple of minor x86_64 only bugs that I've reported.
Beyond that, I never had any problems with x86_64 (and I've been using
it since 2003).

However, YMMV depending on the exact hardware configuration.

Gilboa


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