From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 8 Aug 2002 13:09:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 8 Aug 2002 13:09:35 -0400 Received: from holomorphy.com ([66.224.33.161]:44441 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Thu, 8 Aug 2002 13:09:34 -0400 Date: Thu, 8 Aug 2002 10:13:28 -0700 From: William Lee Irwin III To: linux-kernel@vger.kernel.org Subject: Re: further IO-APIC oddities Message-ID: <20020808171328.GC15685@holomorphy.com> Mail-Followup-To: William Lee Irwin III , linux-kernel@vger.kernel.org References: <20020808162856.GD6256@holomorphy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Description: brief message Content-Disposition: inline In-Reply-To: <20020808162856.GD6256@holomorphy.com> User-Agent: Mutt/1.3.25i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 08, 2002 at 09:28:56AM -0700, William Lee Irwin III wrote: > Strange thing happened when I booted the latest x86 discontigmem stuff. > The stuff where the IO-APIC ID's showed up as zeroed out went away, > and io_apic.c just bitched about the MPC table entries because it > doesn't realize that physid's of IO-APIC's mean squat on this box. > *AND* whatever was scribbling over that table & zeroing it out went > away. That bug is reproducible on more garden variety machines too. > If someone who knows how to read the IO-APIC map dumps is around, > I've included the boot log below. > Any pointers to where I should print_IO_APIC() early on would also be > useful. ... from another run, with a printk in apic.c re: mapping the IO-APICs turned on: mapped IOAPIC to ffffd000 (fe800000) mapped IOAPIC to ffffc000 (fe801000) mapped IOAPIC to ffffb000 (fe840000) mapped IOAPIC to ffffa000 (fe841000) mapped IOAPIC to ffff9000 (fe880000) mapped IOAPIC to ffff8000 (fe881000) mapped IOAPIC to ffff7000 (fe8c0000) mapped IOAPIC to ffff6000 (fe8c1000) Cheers, Bill