Unable to install 8.x on a PowerEdge R810

Sean Bruno seanbru at yahoo-inc.com
Fri Jul 23 15:11:40 UTC 2010

On Thu, 2010-07-22 at 17:51 -0700, Chuck Swiger wrote:
> Hi, Mahlon--
> On Jul 22, 2010, at 5:36 PM, Mahlon E. Smith wrote:
> > Install worked great, though it appears I need to keep hyperthreading
> > ("logical processors" bios option) disabled for it to boot reliably.
> > Similar errors as before if I enable it.
> I believe FreeBSD ships with MAXCPU set to 32 by default (check "sysctl kern.smp.maxcpus"); your machine with hyperthreading enabled probably goes past that #, which is why it crashes with the topology error being reported....
> Regards,


Yahoo has modified FreeBSD SMP CPU code to handle up to 64 CPUS, I think
I'll take a look at it and try to get it committed to HEAD today.


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