Date: Fri, 23 Jul 2010 08:11:27 -0700 From: Sean Bruno <seanbru@yahoo-inc.com> To: Chuck Swiger <cswiger@mac.com> Cc: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org> Subject: Re: Unable to install 8.x on a PowerEdge R810 Message-ID: <1279897887.2525.1.camel@localhost.localdomain> In-Reply-To: <7573B69C-3C37-449A-A27F-5B0B2ED84757@mac.com> References: <20100722213836.GH15227@martini.nu> <1279836216.2456.14.camel@localhost.localdomain> <20100723003611.GA66678@martini.nu> <7573B69C-3C37-449A-A27F-5B0B2ED84757@mac.com>
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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,
confirmed.
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.
Sean
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