From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc MERLIN Subject: Re: Reproduceable SATA lockup on 3.7.8 with SSD Date: Thu, 28 Feb 2013 22:44:46 -0800 Message-ID: <20130301064446.GA21808@merlins.org> References: <20130226002731.GC25875@merlins.org> <512CD4F7.806@pobox.com> <20130226002731.GC25875@merlins.org> <20130226010232.GA18133@Krystal> <20130226165004.GD22367@merlins.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from magic.merlins.org ([209.81.13.136]:50542 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751916Ab3CAGot (ORCPT ); Fri, 1 Mar 2013 01:44:49 -0500 Content-Disposition: inline In-Reply-To: <20130226165004.GD22367@merlins.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mathieu Desnoyers , Jeff Garzik Cc: Linux Kernel mailing List , linux-ide@vger.kernel.org, desnoyers@efficios.com On Tue, Feb 26, 2013 at 08:50:04AM -0800, Marc MERLIN wrote: > On Tue, Feb 26, 2013 at 10:29:59AM -0500, Jeff Garzik wrote: > > On 02/25/2013 07:27 PM, Marc MERLIN wrote: > > >Howdy, > > > > > >I seem to have the same problem (or similar) as Mathieu Desnoyers in > > >https://lkml.org/lkml/2013/2/22/437 > > > > > >I can reliably get my SSD to drop from the SATA bus given the right > > >workload > > >on linux. > > > > > >How can I tell if it's linux's fault of the drive's fault? > > > > Manually force speed to 3.0 Gbps, then 1.5 Gbps, and see what happens. > > > > Try module/kernel parameter libata.force=1.5Gbps or libata.force=3.0Gbps > > Ok, so by reading my log at time of failure, you saw that speed was > flipping between the two? (I couldn't see that, but I'm not good at reading > it). > > Also, just to make sure, you're not saying that you want me to change the > speed at runtime, but > 1) boot once with speed forced at 3Gbps and try and reproduce > 2) boot a 2nd time with speed forced at 1.5Gbps and try and reproduce > > If libata is not a module in my kernel, I can still put > libata.force=1.5Gbps > on the lilo/grub command line, correct? Jeff, could you clear up what you'd like me to try out? Thanks, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/