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Date:      Wed, 6 Aug 2003 11:42:05 -0700
From:      "Luoqi Chen" <lchen@briontech.com>
To:        "Don Bowman" <don@sandvine.com>, <freebsd-stable@freebsd.org>
Subject:   RE: multiple IOxAPIC on 4.7 with Intel P64H2
Message-ID:  <AHEKICEOIHLOGINAFIINAEDICBAA.lchen@briontech.com>
In-Reply-To: <FE045D4D9F7AED4CBFF1B3B813C8533702742145@mail.sandvine.com>

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> I have a multi-port PCI-X card that is causing
> me some grief.
> An older version of the system bios allowed this to
> work correctly, and the on-board devices to work
> correctly.
> 
> the newer system bios has fixed a 'bug' where the
> interrupts were routed incorrectly according to the
> PCI bridge specification.
> 
> The system vendor indicates that I am likely missing
> the support for multiple IOxAPIC, in particular,
> not supporting the ones in the P64H2 hub. I know
> that FreeBSD is using the IOxAPIC in the ICH-3 correctly.
> 
> Can someone suggestion if -stable supports this configuration?
> I can't get to the point of running 'mptable' since 
> the system won't come up: i get IRQ timeouts on the scsi
> device.
> 
> I have a 2x XEON system with ICH-3, e7501, and P64H2.
> It appears there are two IO APIC in the ICH-3, and two
> in the P64H2.
> 
> --don
>
We support multiple IO APICs in -stable. I have systems with
a total of 7 IO APICs running happily under -stable. BTW,
there should be only one IO APIC in a ICH3-S, and two for
each P64H2.

-lq



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