Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753739AbaF0PLZ (ORCPT ); Fri, 27 Jun 2014 11:11:25 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:31001 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752740AbaF0PLW (ORCPT ); Fri, 27 Jun 2014 11:11:22 -0400 Message-ID: <53AD89FB.7090609@oracle.com> Date: Fri, 27 Jun 2014 11:12:59 -0400 From: Boris Ostrovsky User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8 MIME-Version: 1.0 To: Borislav Petkov CC: Konrad Rzeszutek Wilk , x86-ml , Tony Luck , lkml Subject: Re: [GIT PULL] 2 RAS fixes for 3.17, refreshed References: <20140622164603.GA3385@pd.tnic> <20140624132439.GH4439@pd.tnic> <20140624132701.GB28885@laptop.dumpdata.com> <20140627150155.GG23153@pd.tnic> In-Reply-To: <20140627150155.GG23153@pd.tnic> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/27/2014 11:01 AM, Borislav Petkov wrote: > On Tue, Jun 24, 2014 at 09:27:01AM -0400, Konrad Rzeszutek Wilk wrote: >> Isn't that one a regression that was introduced in 3.16? > Hrrm, BorisO, you said misc_register would often fail in xen, is that > correct? Because if so, we added the error check to misc_register in > 3.16 so the mcheck_init_device fix would have to go in now. Yes, it fails because xen_late_init_mcelog() registers /dev/mcelog and (I think) it happens before mcheck_init_device(). In other words, misc_register() expected to fail in mcheck/mce.c on (privileged?) PV guests (provided right CONFIG_XEN_* is set). -boris -- 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/