Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751077AbWBBTiM (ORCPT ); Thu, 2 Feb 2006 14:38:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751087AbWBBTiM (ORCPT ); Thu, 2 Feb 2006 14:38:12 -0500 Received: from wproxy.gmail.com ([64.233.184.204]:7792 "EHLO wproxy.gmail.com") by vger.kernel.org with ESMTP id S1751077AbWBBTiL convert rfc822-to-8bit (ORCPT ); Thu, 2 Feb 2006 14:38:11 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=RKMVyenN4/0pTYew+eP3zFzN+QwkJVQ2Nd5bDFAXWQ9wRIy5aapJl/dLZhtqmZorMH/A2kt5eNM9Dq4XTMO+RjsDd2wik7UYGBO8noUC8Zf8xmTuN8VxtxXUCOQSHvtBQq5IJceFURCrYfZXHdsLuqJgome+IfBW4WGmGzfZpPo= Message-ID: <9a8748490602021138h3b4b4432se1529101e5536ddc@mail.gmail.com> Date: Thu, 2 Feb 2006 20:38:10 +0100 From: Jesper Juhl To: Dave Jones , Linux Kernel Subject: Re: discriminate single bit error hardware failure from slab corruption. In-Reply-To: <20060202192414.GA22074@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <20060202192414.GA22074@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1227 Lines: 28 On 2/2/06, Dave Jones wrote: > In the case where we detect a single bit has been flipped, we spew > the usual slab corruption message, which users instantly think > is a kernel bug. In a lot of cases, single bit errors are > down to bad memory, or other hardware failure. > > This patch adds an extra line to the slab debug messages in those > cases, in the hope that users will try memtest before they report a bug. > > 000: 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b > Single bit error detected. Possibly bad RAM. Please run memtest86. > May I suggest that the text be Single bit error detected. Possibly bad RAM. Please run memtest86 and/or memtest86+. both programs are good memory testers, but they are different and sometimes one finds problems not detected by the other. -- Jesper Juhl Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html - 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/