Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752730AbYHBCwL (ORCPT ); Fri, 1 Aug 2008 22:52:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752280AbYHBCvz (ORCPT ); Fri, 1 Aug 2008 22:51:55 -0400 Received: from an-out-0708.google.com ([209.85.132.246]:21676 "EHLO an-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754699AbYHBCvy (ORCPT ); Fri, 1 Aug 2008 22:51:54 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:reply-to:to:subject:cc:in-reply-to :mime-version:content-type:content-transfer-encoding :content-disposition:references; b=Nqq789e1BhcIdyM5kYTcbopDql+2wC//cbnNz4xKW6gvzOzaOV+txQ4/d1RluU8Eh1 2V5U8djsJT65bH1mdSbwyDG807DBA1CH4fMCmUxBDD9mI9pRQX9D0kFr/WO+ntN7NXNO KEVbYg5bfz2K0GFR6Xz7EiqnJMcsUsjOCZIIM= Message-ID: <3ae3aa420808011951l58da4010r1ff0876f255565b0@mail.gmail.com> Date: Fri, 1 Aug 2008 21:51:53 -0500 From: "Linas Vepstas" Reply-To: linasvepstas@gmail.com To: "Alistair John Strachan" Subject: Re: amd64 sata_nv (massive) memory corruption Cc: linux-kernel@vger.kernel.org In-Reply-To: <200808012319.05038.alistair@devzero.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <3ae3aa420808011030weadc61fvf6f850f0a4cfcb3e@mail.gmail.com> <200808012319.05038.alistair@devzero.co.uk> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1005 Lines: 24 2008/8/1 Alistair John Strachan : > On Friday 01 August 2008 18:30:34 Linas Vepstas wrote: >> Hi, >> >> I'm seeing strong, easily reproducible (and silent) corruption on a >> sata-attached >> disk drive on an amd64 board. It might be the disk itself, but I >> doubt it; googling >> suggests that its somehow iommu-related but I cannot confirm this. > > Nowhere do you explicitly say you have memtest86'ed the RAM. It passes memtest86+ just fine. The system has been in heavy use doing big science calculations on big datasets (multi-gigabyte) for months; these do not get corrupted when copied/moved around on the old parallel IDE disk, nor moving/copying on an NFS mount to a file server. Only the SATA disk is misbehaving. --linas -- 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/