From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265764AbUEZSRw (ORCPT ); Wed, 26 May 2004 14:17:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265766AbUEZSRw (ORCPT ); Wed, 26 May 2004 14:17:52 -0400 Received: from canuck.infradead.org ([205.233.217.7]:13841 "EHLO canuck.infradead.org") by vger.kernel.org with ESMTP id S265764AbUEZSRv (ORCPT ); Wed, 26 May 2004 14:17:51 -0400 Date: Wed, 26 May 2004 14:17:34 -0400 From: hch@infradead.org To: Andi Kleen Cc: Ingo Molnar , andrea@suse.de, linux-kernel@vger.kernel.org, arjanv@redhat.com Subject: Re: 4k stacks in 2.6 Message-ID: <20040526181734.GA30093@infradead.org> Mail-Followup-To: hch@infradead.org, Andi Kleen , Ingo Molnar , andrea@suse.de, linux-kernel@vger.kernel.org, arjanv@redhat.com References: <1ZQpn-1Rx-1@gated-at.bofh.it> <1ZQz8-1Yh-15@gated-at.bofh.it> <1ZRFf-2Vt-3@gated-at.bofh.it> <203Zu-4aT-15@gated-at.bofh.it> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i X-SRS-Rewrite: SMTP reverse-path rewritten from by canuck.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 26, 2004 at 03:57:05PM +0200, Andi Kleen wrote: > Ingo Molnar writes: > > > > do you realize that the 4K stacks feature also adds a separate softirq > > and a separate hardirq stack? So the maximum footprint is 4K+4K+4K, with > > A nice combination would be 8K process stacks with separate irq stacks on > i386. > > Any chance the CONFIGs for those two could be split? Any reason not to enable interrupt stacks unconditionally and leave the stack size choice to the user?