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Date: Tue, 26 Apr 2005 12:46:42 +0200
From: Maxime Henrion <mux@FreeBSD.org>
To: Doug White <dwhite@gumbysoft.com>
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cc: Matthew Sullivan <matthew@uq.edu.au>
cc: Nate Lawson <nate@root.org>
cc: freebsd-current@freebsd.org
Subject: Re: SMP on Compaq DL380
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Doug White wrote:
> On Tue, 26 Apr 2005, Matthew Sullivan wrote:
> 
> > >>>There definitely is a problem when you have identical APIC ids.  We
> > >>>already blacklist one version of this BIOS.
> > >>>
> > >>That's not something I wanted to here right now... :-(
> > >
> > >Are you __sure__ you're booting the right kernel?
> > >http://scorpion.sorbs.net/dmesg.txt shows a kernel that does not have SMP
> > >nor APIC enabled.  I'm still seeing ISA interrupt routing rather than APIC
> > >mappings.  And as noted previously the APIC IDs are not set which means
> > >they are not enabled.  (APIC IDs are always >0.)
> > >
> > >What is the output of 'sysctl kern.smp'?
> > >
> > >
> > kern.smp.maxcpus: 16
> > kern.smp.active: 0
> > kern.smp.disabled: 0
> > kern.smp.cpus: 1
> > kern.smp.forward_signal_enabled: 1
> > kern.smp.forward_roundrobin_enabled: 1
> 
> You're booting the wrong kernel. Do a buildkernel + installkernel now,
> reboot the system, and check that the kernel's build date has incremented.
> Also watch the loader output and make sure someone hasn't overridden the
> kernel name in loader.conf.
> 
> > >Have you tried booting without ACPI?
> > >
> > >
> > No, but I am doing now...
> >
> > Btw now I have remote console this is what the BIOS shows....
> >
> >    1024 MB Detected
> >
> > COMPAQ System BIOS - P17 (12/18/2002)
> > Copyright 1982,2002 Compaq Computer Corporation. All rights reserved.
> 
> This appears to be the latest BIOS. Some Compaq systems are known to
> generate bogus MPTables and such when configured to run Windows. You might
> poke around the BIOS Setup and see if there is an "OS Type" field that can
> be set to "SCO UNIX" or "Other" (not in PnP setup probably).

Yeah, I've seen DL380 boxes that needed "Linux" as the OS type or the
BIOS wouldn't generate an MPTable with both CPUs.

Maxime