Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755442Ab1DODXz (ORCPT ); Thu, 14 Apr 2011 23:23:55 -0400 Received: from swm.pp.se ([212.247.200.143]:49022 "EHLO uplift.swm.pp.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754602Ab1DODXy (ORCPT ); Thu, 14 Apr 2011 23:23:54 -0400 X-Greylist: delayed 489 seconds by postgrey-1.27 at vger.kernel.org; Thu, 14 Apr 2011 23:23:54 EDT Date: Fri, 15 Apr 2011 05:15:43 +0200 (CEST) From: Mikael Abrahamsson To: Bruce Stenning cc: Mark Lord , "linux-kernel@vger.kernel.org" , "linux-ide@vger.kernel.org" Subject: RE: sata_mv port lockup on hotplug (kernel 2.6.38.2) In-Reply-To: Message-ID: References: <4D9CD275.9000002@teksavvy.com> User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) Organization: People's Front Against WWW MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1269 Lines: 31 On Fri, 8 Apr 2011, Bruce Stenning wrote: > The 2.6.38.2 kernel still exhibits the same lockups that we see with the > 2.6.26 kernel. Hi. I have some input on this. I have one of these controllers and had problems with one channel where if I had a drive in that hotswap bay, the controller wouldn't even POST at boot. It just stuck in the detection phase in the controller BIOS. When I tested hotplugging into that bay when the system was running, I received a kernel warning (it's not powered on at the moment so I can't provide the output, if it's important I can get it). My point is that there might be a problem with this controller hw or firmware that doesn't handle all behaviour/situations properly. I re-seated the SATA cable at both ends and after that couldn't reproduce the problem (which was reproduced with two different make harddrives several times before re-seating the cable). This was with the 2.6.32 debian stable kernel, AMD64 version. -- Mikael Abrahamsson email: swmike@swm.pp.se -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/