Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753596AbXLDVxd (ORCPT ); Tue, 4 Dec 2007 16:53:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751625AbXLDVx0 (ORCPT ); Tue, 4 Dec 2007 16:53:26 -0500 Received: from mx1.redhat.com ([66.187.233.31]:57340 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751081AbXLDVxZ (ORCPT ); Tue, 4 Dec 2007 16:53:25 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Roland McGrath To: Ingo Molnar X-Fcc: ~/Mail/linus Cc: Shi Weihua , linux-kernel@vger.kernel.org, Thomas Gleixner , "H. Peter Anvin" Subject: Re: [PATCH 1/3] signal(i386): alternative signal stack wraparound occurs In-Reply-To: Ingo Molnar's message of Tuesday, 4 December 2007 14:02:18 +0100 <20071204130218.GE31590@elte.hu> References: <474CF7D5.6010702@cn.fujitsu.com> <474D05AE.60905@cn.fujitsu.com> <20071204130218.GE31590@elte.hu> X-Zippy-Says: Do you guys know we just passed thru a BLACK HOLE in space? Message-Id: <20071204215251.60C6326F8D9@magilla.localdomain> Date: Tue, 4 Dec 2007 13:52:51 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 745 Lines: 19 > > Thank you for your detailed explanation and patch. I tested your > > patch, unfortunately it can not stop all kinds of overflow. > [...] > > So, the patch I posted is still needed > > thanks, i've picked up your fix for x86.git, for 2.6.25 merging. I just explained that not all overflows would be caught and that doing so would violate the semantics of e.g. longjmp. I don't see how the patch you've included now doesn't still have all those problems. I think it's wrong. Thanks, Roland -- 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/