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From: Len Brown <len.brown@intel.com>
To: "Yinghai Lu" <yinghai.lu@amd.com>
Cc: "Andrew Morton" <akpm@osdl.org>, "Andi Kleen" <ak@muc.de>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	linux-kernel@vger.kernel.org
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	[thread overview]
Message-ID: <200611270037.53964.len.brown@intel.com> (raw)
In-Reply-To: <86802c440611261524p6b170f50rf7db3eafd4f7602e@mail.gmail.com>

"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




  parent reply	other threads:[~2006-11-27  5:35 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-11-26 23:24 [PATCH 3/3] x86: when acpi_noirq is set, use mptable instead of MADT Yinghai Lu
2006-11-27  0:23 ` Andi Kleen
2006-11-27  5:37 ` Len Brown [this message]
2006-11-27  7:37   ` Yinghai Lu
2006-11-28  5:09   ` Yinghai Lu

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