From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Random shutdown of disks using sata_mv Date: Tue, 15 Dec 2009 14:38:11 +0900 Message-ID: <4B2720C3.3050203@kernel.org> References: <34963.87.210.74.220.1259669744.squirrel@ketsers.dhs.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]:58325 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751466AbZLOFgJ (ORCPT ); Tue, 15 Dec 2009 00:36:09 -0500 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Simon Jackson Cc: Caspar Smit , "linux-ide@vger.kernel.org" On 12/01/2009 11:29 PM, Simon Jackson wrote: > We are investigating a similar type of problem seen on several of > our systems. Seemingly at random (though some systems seem more > susceptible than others) we see the ata link reset and subsequently > there is a FAILED TO IDENTIFY error logged. smartctl is unable to > get information from the drive and a power cycle of the drive is > required to bring it back on line. > > I would be interested to know if the ata level errors are similar to > those we are seeing. Posting kernel messages would be helpful. Just in case, there was a similar report where the new devicekit based smart polling caused HSM violation errors and device shutdown on certain SSDs with flaky firmwares. Thanks. -- tejun