From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: ahci port hangs while hard resetting link Date: Fri, 27 Aug 2010 11:01:39 +0200 Message-ID: <4C777EF3.90502@kernel.org> References: <201008230010.48355.anssi.hannula@iki.fi> <4C723FF4.1020208@kernel.org> <201008231811.59828.anssi.hannula@iki.fi> <4C73F2E3.6030909@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:59959 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753242Ab0H0JHi (ORCPT ); Fri, 27 Aug 2010 05:07:38 -0400 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Gwendal Grignou Cc: Anssi Hannula , linux-ide@vger.kernel.org Hello, On 08/27/2010 10:09 AM, Gwendal Grignou wrote: > It is a good fix. We experience a similar issue [a bad drive was > passing hard reset but would not answer a soft reset]. Without the > patch the machine would hang. With it, the error is found. This > problem has been introduced a long time ago, in commit > 2cbb79ebbd4be07041368da5379a64f89f8ad518; it is there in 2.6.33, in > drivers/ata/ahci.c. I can send you the trivial patch for it if you > want, for stable kernel. Oh, great, I'll send the patch with your Tested-by. Thanks. -- tejun