Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 6 Jun 2002 16:55:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 6 Jun 2002 16:55:23 -0400 Received: from d12lmsgate.de.ibm.com ([195.212.91.199]:36236 "EHLO d12lmsgate.de.ibm.com") by vger.kernel.org with ESMTP id ; Thu, 6 Jun 2002 16:55:23 -0400 Importance: Normal Sensitivity: Subject: Re: [RFC] 4KB stack + irq stack for x86 To: davidm@hpl.hp.com Cc: Andi Kleen , linux-kernel@vger.kernel.org X-Mailer: Lotus Notes Release 5.0.3 (Intl) 21 March 2000 Message-ID: From: "Ulrich Weigand" Date: Thu, 6 Jun 2002 22:55:12 +0200 X-MIMETrack: Serialize by Router on D12ML028/12/M/IBM(Release 5.0.9a |January 7, 2002) at 06/06/2002 22:55:14 MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org David Mosberger wrote: >Just a minor nit: for ia64 it's either 32KB (for page sizes up to >16KB) or 64KB (for 64KB page size). The 32KB is conservative and >based on the assumption that there can be up to 16 nested interrupts >plus some other nested traps (such as unaligned faults). A separate >irq stack should let us reduce the per-task stack size. So in the case of 8K page size, you need an order-2 allocation for the stack, right? How do you handle failures due to fragmentation? Mit freundlichen Gruessen / Best Regards Ulrich Weigand -- Dr. Ulrich Weigand Linux for S/390 Design & Development IBM Deutschland Entwicklung GmbH, Schoenaicher Str. 220, 71032 Boeblingen Phone: +49-7031/16-3727 --- Email: Ulrich.Weigand@de.ibm.com - 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/