Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755367Ab2FEE75 (ORCPT ); Tue, 5 Jun 2012 00:59:57 -0400 Received: from mail-gh0-f174.google.com ([209.85.160.174]:42265 "EHLO mail-gh0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751731Ab2FEE74 (ORCPT ); Tue, 5 Jun 2012 00:59:56 -0400 Date: Mon, 4 Jun 2012 23:59:50 -0500 From: Jonathan Nieder To: Victor Miasnikov Cc: Greg KH , KY Srinivasan , stable@vger.kernel.org, linux-kernel@vger.kernel.org, Mike Sterling Subject: Re: [PATCH 2/2] ata_piix: defer disks to the Hyper-V drivers by default Message-ID: <20120605045950.GB3118@burratino> References: <20120527010903.GA18244@kroah.com> <20120528203518.GA12623@kroah.com> <5EBD7E368EFE4B5CABF4AC528058A4DB@local.st.by> <20120601092017.GE22821@kroah.com> <59CBCFF13ABD41B682835DD5E4851BC1@local.st.by> <20120601162629.GA11812@kroah.com> <426367E2313C2449837CD2DE46E7EAF90710C295@SN2PRD0310MB382.namprd03.prod.outlook.com> <20120602012249.GA7783@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2030 Lines: 51 Hi, Victor Miasnikov wrote: > + see tranlate from Russian language issue described by Maksim Kramarenko: > http://lists.debian.org/debian-russian/2012/01/msg00324.html >> Correct, that is loaded without error, sleep and wake, for a small exception: >> >> At the conclusion of the system through the halt or when sending a >> signal shutdown by ACPI to power down the console fell errors: >> http://www.k-max.name/wp-content/uploads/2012/01/hyper-v.png [That image shows the message exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata1.00: failed command: STANDBY IMMEDIATE ] >> Errors do not interfere with work, but sneaking suspicion about >> future problems with the hard drive ... [...] >> in general, the source of the problem as follows: >> After [VVM: turn On in kernel source] Hyper-V modules [compile and >> start use], a hard disk was determined as 2 with the same UUID. [...] >> connected to a drive: >> http://www.k-max.name/wp-content/uploads/2012/01/hdd-e1327750214479.png >> it is defined as a 2: >> http://www.k-max.name/wp-content/uploads/2012/01/2hdd.png >> Naturally, the same UUID: >> http://www.k-max.name/wp-content/uploads/2012/01/blkid.png >> That's what tells us the directory / dev: >> http://www.k-max.name/wp-content/uploads/2012/01/uuid.png Thanks --- I think this is what Greg was asking for. If I understand correctly, the problem is that ata_piix and hv_storvsc both claim the (virtual) hard disk. That sounds worth fixing. The patch works by making ata_piix skip the disk during enumeration if hv_storvsc is enabled as a built-in driver or module. A workaround is to blacklist the ata_piix module. However, that means losing access to CD and DVD drives which are exposed by ata_piix and not hv_storvsc. Hoping that clarifies, Jonathan -- 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/