> -----Original Message-----
> [mailto:[EMAIL PROTECTED] Behalf Of Chad Leigh --
> Shire.Net LLC
> Sent: Tuesday, September 04, 2007 10:20 PM
> To: User Questions
> Subject: no SMP without ACPI? (amd64)
> Hi
> I have a 6.2R system (amd64) with the latest patch level.
> The motherboard is a Tyan S5197 i3110 based board with a Core 2 Quad  
> 2.4 ghz processor.  There is 4GB of memory and an Areca ARC-1231ML  
> raid card.
> The problem is that I have to boot without ACPI or the system will  
> randomly reboot itself when doing something. It will sit idle for  
> ages but if I do a system build (make buildworld for example), it  
> usually will not make it through without rebooting.  If I boot  
> without ACPI support (#2 in the boot loader), then the system is  
> fine, I can do a billion builds without incident, except that I only  
> get 1 CPU.  (Yes, the kernel has SMP option built in).
> I would really like to run with all 4 cores but cannot run with ACPI  
> at the moment due to instability.
> Any suggestions?  Any way to get "old-style" SMP detection working  
> (ie, without ACPI)?

Join the club - I think all of us with a lot of systems have a
few around in that same boat.  I know I do.

All I can say is fill out as detailed a PR as you possibly can
and hope for the best.  And don't forget to add screaming at Tyan
to the list - if these stupid motherboard manufacturers never
hear from us they don't pay attention to us.

You can also try changing BIOS versions, and dicking around with
BIOS settings, sometimes that helps.

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