Date: Sat, 31 Oct 1998 14:52:33 +0800 From: Peter Wemm <peter@netplex.com.au> To: Tor.Egge@fast.no Cc: freebsd-bugs@FreeBSD.ORG Subject: Re: kern/8456: SMP kernel fails with Everex PO-6200 Dual PPro MB Message-ID: <199810310652.OAA18694@spinner.netplex.com.au> In-Reply-To: Your message of "Fri, 30 Oct 1998 18:40:00 PST." <199810310240.SAA14440@freefall.freebsd.org>
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Tor.Egge@fast.no wrote:
> > --
> > I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PI
N#
> > ExtINT active-hi edge 0 0 255
0
> I suggest testing a change in int_entry() (in mp_machdep.c) from
>
> io_apic_ints[intr].dst_apic_id = entry->dst_apic_id;
>
> to
>
> if (entry->dst_apic_id == 255)
> io_apic_ints[intr].dst_apic_id = IO_TO_ID(0);
> else
> io_apic_ints[intr].dst_apic_id = entry->dst_apic_id;
>
> - Tor Egge
The other option is to have the dst_apic_id value ignored if there is only
one IO apic, assuming this makes sense. A "broken mptable!" warning would
probably be an idea though.
Cheers,
-Peter
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