From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758474Ab3BKRtc (ORCPT ); Mon, 11 Feb 2013 12:49:32 -0500 Received: from e9.ny.us.ibm.com ([32.97.182.139]:36678 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758096Ab3BKRtb (ORCPT ); Mon, 11 Feb 2013 12:49:31 -0500 Message-ID: <51192B39.9060501@linux.vnet.ibm.com> Date: Mon, 11 Feb 2013 09:32:41 -0800 From: Dave Hansen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: Borislav Petkov , linux-kernel@vger.kernel.org, linux-mm@kvack.org, hpa@zytor.com, mingo@kernel.org, tglx@linutronix.de Subject: Re: [PATCH 1/2] add helper for highmem checks References: <20130208202813.62965F25@kernel.stglabs.ibm.com> <20130209094121.GB17728@pd.tnic> <20130209104751.GC17728@pd.tnic> In-Reply-To: <20130209104751.GC17728@pd.tnic> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13021117-7182-0000-0000-0000051F4383 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/09/2013 02:47 AM, Borislav Petkov wrote: > On Sat, Feb 09, 2013 at 10:41:21AM +0100, Borislav Petkov wrote: > With this change, they definitely fix something because I even get X on > the box started. Previously, it would spit out the warning and wouldn't > start X with the login window. And my suspicion is that wdm (WINGs > display manager) I'm using, does /dev/mem accesses when it starts and it > obviously failed. Now not so much :-) That's crazy. Didn't expect that at all. I guess X is happier getting an error than getting random pages back. I'm working on a set of patches now that should get it _working_ instead of just returning an error.