From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964800AbVJDPYY (ORCPT ); Tue, 4 Oct 2005 11:24:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964801AbVJDPYY (ORCPT ); Tue, 4 Oct 2005 11:24:24 -0400 Received: from ns.suse.de ([195.135.220.2]:17826 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S964800AbVJDPYX (ORCPT ); Tue, 4 Oct 2005 11:24:23 -0400 From: Andi Kleen To: "Eric W. Biederman" Subject: Re: [PATCH 2/2] x86_64: move apic init in init_IRQs Date: Tue, 4 Oct 2005 17:24:36 +0200 User-Agent: KMail/1.8.2 Cc: Andrew Morton , linux-kernel@vger.kernel.org, fastboot@osdl.org References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200510041724.36535.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 04 October 2005 17:13, Eric W. Biederman wrote: > All kinds of ugliness exists because we don't initialize > the apics during init_IRQs. > - We calibrate jiffies in non apic mode even when we are using apics. > - We have to have special code to initialize the apics when non-smp. > - The legacy i8259 must exist and be setup correctly, even > we won't use it past initialization. Actually some setups use its timer even in ACPI mode. Do you take this into account? In theory it looks reasonable, but I guess it won't work without the bogus watchdog change. That would need to be resolved first. -Andi