Dual Opteron system will not run SMP

[Jack Vogel]

On 6/5/06, Pete French <petefrench at ticketswitch.com> wrote:
> Not that 6.1 is out the dor I monder if anyone wuld like to give me
> a hand with an SMP problem I have. I am running a system with two
> Opterorn 242 processors in a K8D Master-F motherboard, each with 512M
> of RAM attached. The processors both work and the system will run SMP
> under wndows 2000 quite happily.
>
> Under FreeBSD 61. the system also runs quite happily single processor,
> but when I ruun an SMP kenel it freezes at the 'Waiting for SCSI devices
> to settle; part of the boot process. Interesting it also does this in
> single processor mode unless I have 'debug.acpi.disabled=timer'.
>
> The motherboard has three plugin caards on it - an fxp Intel
> either card, a Compaq 5402 RADI controller and an Adaptec 29160 which
> is the boot device. In case these were causing problems I have also tried
> unplugging all these cards are booting off an IDE drive. This exhibits
> the same effect.
>
> I *can* boot an SMP kene in 'safe mode' but this then only recognises
> a single processor. I am using the GENERIC and SMP kerenls with no
> modifications.
>
> Other people have reported this motherboard to work. The output from
> mptable is attached below if anyone is interested in trying to help
> me track this down!
> cheers,
>
> -pcf.

You say you can boot 'safe', can you boot with just ACPI disabled?

One suggestion, boot in SAFE or non-ACPI, then do a pciconf -l and
look for pci devices that are unknown. At least that will give more
evidence.

Hard to say if its ACPI or PCI related. Uh, you did make sure you
have the latest BIOS for your motherboard right?

Good luck,