From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759596AbYAUOdv (ORCPT ); Mon, 21 Jan 2008 09:33:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753839AbYAUOdn (ORCPT ); Mon, 21 Jan 2008 09:33:43 -0500 Received: from wa-out-1112.google.com ([209.85.146.178]:17884 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753539AbYAUOdm (ORCPT ); Mon, 21 Jan 2008 09:33:42 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=nkahbnZO+0Sp7TUcPR2LEiNzasTPU6jP4YeMLcKTOcbbPUzQ106rCBM+y1o8XgoIJ5ixBn8UPOwRcQA15z7FWwQ6Bm6x6vLddqzENEARkGxy1zGNwUugIY/8y0RJhPXPpRRjCdsVelB/vRwmjOfrYM1R3bwcXEDnk4YTx6LuLvw= Message-ID: <4794AD3F.40309@gmail.com> Date: Mon, 21 Jan 2008 23:33:35 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.9 (X11/20070801) MIME-Version: 1.0 To: Alan Cox CC: Andrew Morton , Georgi Chulkov , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, Mark Lord Subject: Re: ATA device reset, shoud I be concerned? References: <200801140019.20668.g.chulkov@jacobs-university.de> <20080115025435.1e21b703.akpm@linux-foundation.org> <20080115113552.75731bf8@lxorguk.ukuu.org.uk> <4794501E.90306@gmail.com> <20080121130256.2443d7c1@lxorguk.ukuu.org.uk> <47949AA4.9090601@gmail.com> <20080121141425.45aa9c61@lxorguk.ukuu.org.uk> <4794ACAF.70505@gmail.com> In-Reply-To: <4794ACAF.70505@gmail.com> X-Enigmail-Version: 0.95.5 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tejun Heo wrote: > IMHO, losing media error information is much better than locking up a > machine hard. We can start white listing known good controllers but I'm > skeptical how much benefit it will bring. Just a data point, even ICHs lock up after PHY event if the wrong TF register is accessed. I just don't think tempting with TF regs after timeout is worth the cost. -- tejun