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Date: Sat, 28 Aug 2010 01:46:16 +0300
From: Andriy Gapon <avg@icyb.net.ua>
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To: Jung-uk Kim <jkim@FreeBSD.org>
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Cc: freebsd-stable@FreeBSD.org
Subject: Re: 8.1-PRERELEASE: CPU packages not detected correctly
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on 28/08/2010 01:33 Jung-uk Kim said the following:
> If you are really up to this, it has to be a two-pass process.  Even 
> then, the dmesg won't be pretty because the topology can only be 
> "announced" after all APs have been started.  I mean, nobody's going 
> to like to see a message like this from dmesg output:
> 
> ...
> ACPI APIC Table: <FOOBAR>
> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
>  cpu0 (BSP): APIC ID:  0
>  cpu1 (AP): APIC ID:  1
> 
> --- >8 --- Snip several hundred lines! --- >8 ---
> 
> SMP: AP CPU #1 Launched!
> FreeBSD/SMP: 1 package(s) x 2 core(s)
> Root mount waiting for: usbus5 usbus2
> Root mount waiting for: usbus5 usbus2
> ...
> 
> In fact, I implemented something like that while I was writing the 
> patch but I discarded it for an obvious reason. ;-)

Well, I was just going to write that I would still keep the assumption that
physical packages are identical :-)
Not nice, but messing with APs I don't want :)

> Also, don't forget jhb's work based on ACPI affinity tables.

Not sure how they are applicable here.

-- 
Andriy Gapon