From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932715AbXCUQgF (ORCPT ); Wed, 21 Mar 2007 12:36:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932963AbXCUQgF (ORCPT ); Wed, 21 Mar 2007 12:36:05 -0400 Received: from ug-out-1314.google.com ([66.249.92.170]:6399 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932715AbXCUQgC (ORCPT ); Wed, 21 Mar 2007 12:36:02 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=s3fKaT4qxdTMsIa0SyOfjHcEhq2eN6er1UiuzSLpuwNU7R2Z0Pomjb9HUgae5iLJQbMCGgO2X9+s3zW9tRcjhaOoHE2E6qy8vzy3E4LFu3Ffn9gHSmPdv0abe2GU6U3hDb5xHKtPaXH/fCW5g8FK2IMKSRgykE2eDo6EgdQsAYw= Message-ID: <46015EE8.7000001@gmail.com> Date: Thu, 22 Mar 2007 01:35:52 +0900 From: Tejun Heo User-Agent: Icedove 1.5.0.10 (X11/20070307) MIME-Version: 1.0 To: Christian CC: linux-kernel@vger.kernel.org Subject: Re: [BUG 2.6.21-rc3-git9] SATA NCQ failure with Samsum HD401LJ References: <200703190808.00746.christiand59@web.de> <45FE3E23.1010705@gmail.com> <200703211534.30943.christiand59@web.de> In-Reply-To: <200703211534.30943.christiand59@web.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Christian wrote: > I've tested multiple kernels (including -mm series) in the range of 2.6.19.7 > (before sata_nv adma support went in) up to 2.6.20-rc4. > Every NCQ enabled kernel I've tested showed ata errors in dmesg. So I came to > the conclusion that my system was faulty. I ran memtest86+ for a long time, > but no errors were found. After some fiddling with my HW I discovered that > the nforce chipset fan induced some kind of electro magnetic interference to > the southbridge, which could clearly be heard as a low frequency noise if I > plugged in my speakers to the onboard sound. After replacing the fan, my > system is stable again. Now running 2.6.21-rc3-mm2+rsdlv31 without errors. > Really strange problem he ;-) Man, that's the strangest way to solve ATA command failures I've ever heard of. Kudos to you for finding it out. :-) -- tejun