Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752452AbcKRIib (ORCPT ); Fri, 18 Nov 2016 03:38:31 -0500 Received: from mail-wm0-f68.google.com ([74.125.82.68]:34130 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751797AbcKRIia (ORCPT ); Fri, 18 Nov 2016 03:38:30 -0500 Date: Fri, 18 Nov 2016 09:38:25 +0100 From: Ingo Molnar To: Josh Poimboeuf Cc: x86@kernel.org, Peter Zijlstra , Vince Weaver , linux-kernel@vger.kernel.org, Ingo Molnar , Arnaldo Carvalho de Melo , davej@codemonkey.org.uk, dvyukov@google.com, Stephane Eranian Subject: Re: [PATCH 1/2] unwind: prevent KASAN false positive warnings in guess unwinder Message-ID: <20161118083825.GA9271@gmail.com> References: <20161116130337.GT3142@twins.programming.kicks-ass.net> <61939c0b2b2d63ce97ba59cba3b00fd47c2962cf.1479398226.git.jpoimboe@redhat.com> <20161117202626.gxinowu2lwd5ik5v@treble> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161117202626.gxinowu2lwd5ik5v@treble> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 480 Lines: 17 * Josh Poimboeuf wrote: > On Thu, Nov 17, 2016 at 09:57:23AM -0600, Josh Poimboeuf wrote: > > The guess unwinder scans the entire stack, which can cause KASAN > > "stack-out-of-bounds" false positive warnings. Tell KASAN to ignore it. > > > > Reported-by: Peter Zijlstra > > Signed-off-by: Josh Poimboeuf > > Whoops, forgot to prefix the patch subjects with "x86/". No problem, fixed it up. Thanks, Ingo