From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755806AbbAIWC6 (ORCPT ); Fri, 9 Jan 2015 17:02:58 -0500 Received: from mail-qc0-f173.google.com ([209.85.216.173]:54656 "EHLO mail-qc0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751760AbbAIWC5 (ORCPT ); Fri, 9 Jan 2015 17:02:57 -0500 Date: Fri, 9 Jan 2015 17:02:53 -0500 From: Tejun Heo To: Gabriele Mazzotta Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Subject: Re: SATA link power management issues Message-ID: <20150109220253.GI2785@htj.dyndns.org> References: <3352987.ugV1Ipy7Z5@xps13> <20150109220018.GH2785@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150109220018.GH2785@htj.dyndns.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 09, 2015 at 05:00:18PM -0500, Tejun Heo wrote: > It's not normal. It definitely doesn't happen with all devices. I > guess it could be a quirk from the device side. What's on the other > side of the connector? Can you post the full kernel log after such > incidence? What happens if you comment out the DIPM part of ata_eh_set_lpm() - the first ata_for_each_dev() loop in the function? Thanks. -- tejun