Re: problem on dell r610

[Mark Davies <mark%ecs.vuw.ac.nz@localhost>]

On Thu, 04 Nov 2010, Jukka Ruohonen wrote:
> As it stands now, we need the local APIC to figure out the correct
> BSP and APs. That is, the APIC ID of the designated BSP is not
> necessarily the first one enumerated. The result of not doing this
> is seen in this thread (provided that my analysis was correct,
> which it well may not be).

Having now figured out how to get at the dmesg output that had 
scrolled off the screen I can now add that the DOM0 kernel paniced 
with this output:

mainbus0: MP config table at 0xf0000, 828 bytes long
cpu0 at mainbus0 apid 32panic: cpu at apic id 32 already attached?


If I try to build and boot a DOM0 kernel without acpi it still panics, 
but with:

mainbus0: MP config table at 0xf0000, 828 bytes long
mainbus0: Intel MP Specification (Version 1.4) (DELL PE0236 )
cpu0 at mainbus0 apid 32: (boot processor)
cpu0 at mainbus0 apid 50panic: cpu at apic id 50 already attached?


The GENERIC kernel says:

mainbus0 (root)
cpu0 at mainbus0 apid 32/src/work/5/src/sys/arch/x86/x86/mtrr_i686.c: 
FIXME: more than 8 MTRRs
: Intel 686-class, 2660MHz, id 0x206c2
cpu1 at mainbus0 apid 34: Intel 686-class, 2660MHz, id 0x206c2
cpu2 at mainbus0 apid 50: Intel 686-class, 2660MHz, id 0x206c2
cpu3 at mainbus0 apid 52: Intel 686-class, 2660MHz, id 0x206c2


cheers
mark