From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with ESMTP id CDCC66B004F for ; Fri, 22 May 2009 09:37:59 -0400 (EDT) Date: Fri, 22 May 2009 14:39:14 +0100 From: Alan Cox Subject: Re: [patch 0/5] Support for sanitization flag in low-level page allocator Message-ID: <20090522143914.2019dd47@lxorguk.ukuu.org.uk> In-Reply-To: <20090522113809.GB13971@oblivion.subreption.com> References: <20090520183045.GB10547@oblivion.subreption.com> <4A15A8C7.2030505@redhat.com> <20090522073436.GA3612@elte.hu> <20090522113809.GB13971@oblivion.subreption.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: "Larry H." Cc: Ingo Molnar , Rik van Riel , linux-kernel@vger.kernel.org, Linus Torvalds , linux-mm@kvack.org, Ingo Molnar , pageexec@freemail.hu List-ID: > > performance point of view: we _dont_ want to clear the full stack > > page for every kernel thread exiting. > > Burning the stack there is beyond overkill. Yet most of our historic leaks have been padding bytes in stack based structures. Your position seems very inconsistent. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org