From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755673AbXJDEif (ORCPT ); Thu, 4 Oct 2007 00:38:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751047AbXJDEi1 (ORCPT ); Thu, 4 Oct 2007 00:38:27 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:40593 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751018AbXJDEi0 (ORCPT ); Thu, 4 Oct 2007 00:38:26 -0400 Date: Wed, 3 Oct 2007 21:36:31 -0700 From: Arjan van de Ven To: Christoph Lameter Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, ak@suse.de, travis@sgi.com Subject: Re: [14/18] Configure stack size Message-ID: <20071003213631.7a047dde@laptopd505.fenrus.org> In-Reply-To: <20071004040004.936534357@sgi.com> References: <20071004035935.042951211@sgi.com> <20071004040004.936534357@sgi.com> Organization: Intel X-Mailer: Claws Mail 3.0.1 (GTK+ 2.12.0; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.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, 03 Oct 2007 20:59:49 -0700 Christoph Lameter wrote: > Make the stack size configurable now that we can fallback to vmalloc > if necessary. SGI NUMA configurations may need more stack because > cpumasks and nodemasks are at times kept on the stack. With the > coming 16k cpu support this is going to be 2k just for the mask. This > patch allows to run with 16k or 32k kernel stacks on x86_74. there is still code that does DMA from and to the stack.... how would this work with virtual allocated stack?