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Date:      Tue, 25 Apr 2000 11:29:42 -0400 (EDT)
From:      Luoqi Chen <luoqi@watermarkgroup.com>
To:        smp@csn.net
Cc:        freebsd-smp@FreeBSD.ORG, mihara@prd.fc.nec.co.jp, sthaug@nethelp.no
Subject:   Re: Multiple APIC support (RE: Issues with Spankin' new Poweredge 4400 w/ dual 866's and 133MHz FSB?)
Message-ID:  <200004251529.e3PFTgp22603@lor.watermarkgroup.com>

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> > > The pmap.c code looks somewhat different in 3.4-STABLE, and it wasn't
> > > obvious to me what the complete patch for 3.4-STABLE would be.
> > > 
> > The fix for non-page-aligned ioapic is to add the offset within the page
> > to get the mapped ioapic address. For 3.4-STABLE, it would be
> > 	ioapic[i] = (ioapic_t *)&SMP_ioapic[j * PAGE_SIZE
> > 		+ (io_apic_addres[0] & PAGE_MASK)];
>                                  ^^^
> I don't have 3.4 code handy to see the outer loop, but didn't the const 0 go
> away here?
> 
> > I don't have any machine myself to test it with, so if you can confirm
> > it won't break anything on your machine, I would MFC the fix to 3.4-STABLE.
> 
> --
> Steve Passe	| powered by
> smp@csn.net	|            Symmetric MultiProcessor FreeBSD
> 
> 
Sorry, the 0 should be i (cut-n-paste error).

-luoqi


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