From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261710AbVHDO30 (ORCPT ); Thu, 4 Aug 2005 10:29:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261849AbVHDO3W (ORCPT ); Thu, 4 Aug 2005 10:29:22 -0400 Received: from mx2.suse.de ([195.135.220.15]:28131 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S261710AbVHDO2I (ORCPT ); Thu, 4 Aug 2005 10:28:08 -0400 Date: Thu, 4 Aug 2005 16:28:06 +0200 From: Andi Kleen To: Tom Rini Cc: Andi Kleen , akpm@osdl.org, linux-kernel@vger.kernel.org, amitkale@linsyssoft.com Subject: Re: [patch 07/15] Basic x86_64 support Message-ID: <20050804142806.GX8266@wotan.suse.de> References: <1.2972005.trini@kernel.crashing.org> <20050803130531.GR10895@wotan.suse.de> <20050803133756.GA3337@smtp.west.cox.net> <20050804123900.GR8266@wotan.suse.de> <20050804140445.GB3337@smtp.west.cox.net> <20050804140620.GW8266@wotan.suse.de> <20050804141437.GC3337@smtp.west.cox.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050804141437.GC3337@smtp.west.cox.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 04, 2005 at 07:14:37AM -0700, Tom Rini wrote: > On Thu, Aug 04, 2005 at 04:06:20PM +0200, Andi Kleen wrote: > > On Thu, Aug 04, 2005 at 07:04:45AM -0700, Tom Rini wrote: > > > On Thu, Aug 04, 2005 at 02:39:00PM +0200, Andi Kleen wrote: > > > > > > That doesn't make much sense here. tasklet will only run when interrupts > > > > > > are enabled, and that is much later. You could move it to there. > > > > > > > > > > Where? Keep in mind it's really only x86_64 that isn't able to break > > > > > sooner. > > > > > > > > The local_irq_enable() call in init/main.c:start_kernel() > > > > > > But as I say, only x86_64 needs this kind of delay. > > > > I don't think that's correct. Interrupts should be disabled on all > > architectures until that. > > Right, but we can run sooner elsewhere. It's only x86_64 where we can't > run when our commandline bits are parsed and need to wait. Why can't you run on x86-64 early? -Andi