From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alejandro Riveira =?UTF-8?B?RmVybsOhbmRleg==?= Subject: Re: sata_mv port lockup on hotplug (kernel 2.6.38.2) Date: Wed, 6 Apr 2011 23:00:21 +0200 Message-ID: <20110406230021.2ab54966@varda> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:33423 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750727Ab1DFVAl convert rfc822-to-8bit (ORCPT ); Wed, 6 Apr 2011 17:00:41 -0400 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Bruce Stenning Cc: "linux-kernel@vger.kernel.org" , linux-ide@vger.kernel.org El Wed, 6 Apr 2011 15:57:06 +0100 Bruce Stenning escribi=C3=B3: Just CCing linux-ide > Please accept my most humble apologies for the lack of line breaks in > my previous email. Here it is again, this time in a more readable > format: >=20 > Hello, >=20 > We have a bespoke platform utilising a Marvell MV88SX6041 SATA contro= ller > on which we have been running Linux 2.6.26 and using the sata_mv driv= er. >=20 > We have noticed problems with SATA ports occasionally locking up (on > hotplug events) and remaining unresponsive. The normal kernel loggin= g > that occurs on hotplug events is no longer emitted for the locked por= ts > (but will be emitted for the other sata ports that have not exhibited > the problem.) The disks attached to the locked ports are completely > unresponsive. The condition can be cleared by removing the sata_mv > kernel module from memory and reloading it, after which the kernel > logging becomes active (and the disks are usable) for all ports. >=20 > The following changeset was seen as a strong candidate for addressing > this problem: >=20 > http://git.kernel.org/?p=3Dlinux/kernel/git/torvalds/linux-2.6.git;a=3D= commitdiff;h=3D933cb8e5fcdebd4b666165e3f039f814d62b0e52 >=20 > We are now in the process of upgrading to the stable 2.6.38.2 kernel > release, but initial testing of this on our platform exhibits the sam= e > hotplug behaviour. Hotplug is possible, but occasionally the ports > will lock up and not be responsive until sata_mv is removed and > reinstalled. Other than this, the new kernel and driver seem to be > operating normally. >=20 > Has this problem been observed elsewhere with kernels that include th= e > above patch? Please CC me in replies. >=20 > Kind Regards, >=20 > Bruce Stenning, > IndigoVision, > b stenning indigovision com >=20 >=20 > Latest News at: http://www.indigovision.com/news2011.php > -- > To unsubscribe from this list: send the line "unsubscribe linux-kerne= l" 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/