From: Len Brown <len.brown@intel.com>
Reply-To: Len Brown <lenb@kernel.org>
Organization: Intel Open Source Technology Center
To: "Yinghai Lu" <yinghai.lu@amd.com>
Subject: Re: [PATCH 3/3] x86: when acpi_noirq is set, use mptable instead of MADT
Date: Mon, 27 Nov 2006 00:37:53 -0500
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Cc: "Andrew Morton" <akpm@osdl.org>, "Andi Kleen" <ak@muc.de>,
       "Eric W. Biederman" <ebiederm@xmission.com>,
       linux-kernel@vger.kernel.org
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"acpi=noirq" and "pci=noacpi" are not reliable in IOAPIC mode --
as, by definition, they skip the processing of the ACPI interrupt itself.
On some systems this happens to work, and on some systems it doesn't --
depends on if there was an override for the SCI or if it appears as
a standard PCI interrupt.

So the bigger question is why you need these workarounds in the first place.

-Len


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