Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263393AbTEGOgI (ORCPT ); Wed, 7 May 2003 10:36:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263479AbTEGOgI (ORCPT ); Wed, 7 May 2003 10:36:08 -0400 Received: from holomorphy.com ([66.224.33.161]:46479 "EHLO holomorphy") by vger.kernel.org with ESMTP id S263393AbTEGOfR (ORCPT ); Wed, 7 May 2003 10:35:17 -0400 Date: Wed, 7 May 2003 07:47:36 -0700 From: William Lee Irwin III To: Torsten Landschoff Cc: J?rn Engel , Linux kernel Subject: Re: top stack (l)users for 2.5.69 Message-ID: <20030507144736.GE8978@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Torsten Landschoff , J?rn Engel , Linux kernel References: <20030507132024.GB18177@wohnheim.fh-wedel.de> <20030507135657.GC18177@wohnheim.fh-wedel.de> <20030507143315.GA6879@stargate.galaxy> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030507143315.GA6879@stargate.galaxy> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1119 Lines: 25 On Wed, May 07, 2003 at 03:56:57PM +0200, J?rn Engel wrote: >> Agreed, partially. There is the current issue of the kernel stack >> being just 8k in size and no decent mechanism in place to detect a >> stack overflow. And there is (arguably) the future issue of the kernel >> stack shrinking to 4k. On Wed, May 07, 2003 at 04:33:15PM +0200, Torsten Landschoff wrote: > Pardon my ignorance, but why is the kernel stack shrinked to just a few > kilobytes? With 256MB of RAM in a typical desktop system it shouldn't > be a problem to use 256KB from that as the stack, but I am sure there > are good reasons to shrink it. > Just curious, thanks for any info The kernel stack is (in Linux) unswappable memory that persists throughout the lifetime of a thread. It's basically how many threads you want to be able to cram into a system, and it matters a lot for 32-bit. -- wli - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/