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Date:      Tue, 25 Apr 2000 07:55:00 -0400 (EDT)
From:      Luoqi Chen <luoqi@watermarkgroup.com>
To:        sthaug@nethelp.no
Cc:        freebsd-smp@FreeBSD.ORG, mihara@prd.fc.nec.co.jp, smp@csn.net
Subject:   Re: Multiple APIC support (RE: Issues with Spankin' new Poweredge 4400 w/ dual 866's and 133MHz FSB?)
Message-ID:  <200004251155.e3PBt0D19565@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 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.

-lq


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