From owner-freebsd-current@FreeBSD.ORG Thu Feb 5 15:19:08 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D275016A4D0 for ; Thu, 5 Feb 2004 15:19:08 -0800 (PST) Received: from root.org (root.org [67.118.192.226]) by mx1.FreeBSD.org (Postfix) with SMTP id C245A43D2F for ; Thu, 5 Feb 2004 15:19:07 -0800 (PST) (envelope-from nate@root.org) Received: (qmail 48481 invoked by uid 1000); 5 Feb 2004 23:19:09 -0000 Date: Thu, 5 Feb 2004 15:19:09 -0800 (PST) From: Nate Lawson To: jhb@freebsd.org Message-ID: <20040205151520.E48439@root.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: pmes@bis.midco.net cc: current@freebsd.org Subject: Re: Interrupt storm on acpi0 occurred after madt.c change X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Feb 2004 23:19:08 -0000 It should work fine in Linux. mp_config_ioapic_for_sci() in arch/i386/kernel/mpparse.c has an exception for Tyans: /* * Although the ACPI spec says that the SCI should be level/low * don't reprogram it unless there is an explicit MADT OVR entry * instructing us to do so -- otherwise we break Tyan boards which * have the SCI wired edge/high but no MADT OVR. */ This is for the case where there is no source override in the MADT for the interrupt defined as ACPI_FADT->sci_int. -Nate