Date: Tue, 25 Apr 2000 09:09:59 -0600 From: Steve Passe <smp@csn.net> To: Luoqi Chen <luoqi@watermarkgroup.com> Cc: sthaug@nethelp.no, freebsd-smp@FreeBSD.ORG, mihara@prd.fc.nec.co.jp Subject: Re: Multiple APIC support (RE: Issues with Spankin' new Poweredge 4400 w/ dual 866's and 133MHz FSB?) Message-ID: <200004251509.JAA10136@Ilsa.StevesCafe.com> In-Reply-To: Your message of "Tue, 25 Apr 2000 07:55:00 EDT." <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 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
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