Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261507AbVDWJKK (ORCPT ); Sat, 23 Apr 2005 05:10:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261522AbVDWJKK (ORCPT ); Sat, 23 Apr 2005 05:10:10 -0400 Received: from mailfe03.swip.net ([212.247.154.65]:64970 "EHLO swip.net") by vger.kernel.org with ESMTP id S261507AbVDWJKG (ORCPT ); Sat, 23 Apr 2005 05:10:06 -0400 X-T2-Posting-ID: jLUmkBjoqvly7NM6d2gdCg== Subject: RE: [discuss] [Patch] X86_64 TASK_SIZE cleanup - more comments From: Alexander Nyberg To: "Zou, Nanhai" Cc: Andi Kleen , discuss@x86-64.org, linux-kernel@vger.kernel.org, "Siddha, Suresh B" In-Reply-To: <894E37DECA393E4D9374E0ACBBE74270013E8B96@pdsmsx402.ccr.corp.intel.com> References: <894E37DECA393E4D9374E0ACBBE74270013E8B96@pdsmsx402.ccr.corp.intel.com> Content-Type: text/plain Date: Sat, 23 Apr 2005 11:10:03 +0200 Message-Id: <1114247403.916.3.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.0.4 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 823 Lines: 21 > PPC64 IA64 and S390 use variable size TASK_SIZE for 32 bit and 64 bit > program. > I feel it is hard to maintain if we try to audit TASK_SIZE use > everywhere, because most of them are in generic code. > > And maintaining those audit code in separate place is also a problem. > E.g. in current 32 bit emulation code > TASK_SIZE is defined as 0xfffffff in elf loading, but defined as > 0xffffe000 in mmaping. > > How did that earlier patch break applications? http://www.ussg.iu.edu/hypermail/linux/kernel/0408.2/1605.html I never investigated specifically what broke down - 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/