From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751724Ab3KJPXm (ORCPT ); Sun, 10 Nov 2013 10:23:42 -0500 Received: from one.firstfloor.org ([193.170.194.197]:54427 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751471Ab3KJPXl (ORCPT ); Sun, 10 Nov 2013 10:23:41 -0500 Date: Sun, 10 Nov 2013 16:23:38 +0100 From: Andi Kleen To: Fengguang Wu Cc: Joe Mario , Michal Marek , Andi Kleen , linux-kernel@vger.kernel.org Subject: Re: [kallsyms] general protection fault: 0000 [#1] PREEMPT DEBUG_PAGEALLOC Message-ID: <20131110152338.GN29695@two.firstfloor.org> References: <20131110094005.GA21916@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131110094005.GA21916@localhost> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Nov 10, 2013 at 05:40:05PM +0800, Fengguang Wu wrote: > Hi Joe, > > FYI. Here is another bisect result. I bet it's that strncpy() in kallsyms.c and someone passing in a too short buffer on a 32bit kernel. We should really kill strncpy(), it's just evil. -And