From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760014Ab0JFWsK (ORCPT ); Wed, 6 Oct 2010 18:48:10 -0400 Received: from terminus.zytor.com ([198.137.202.10]:36970 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759433Ab0JFWsI (ORCPT ); Wed, 6 Oct 2010 18:48:08 -0400 Message-ID: <4CACFC9D.3010803@zytor.com> Date: Wed, 06 Oct 2010 15:47:57 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100921 Fedora/3.1.4-1.fc13 Thunderbird/3.1.4 MIME-Version: 1.0 To: Andrew Morton CC: Yinghai Lu , Benjamin Herrenschmidt , Ingo Molnar , Thomas Gleixner , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] memblock: Fix big size with find_region() References: <4CA1ABA4.6070803@kernel.org> <20101006140604.982b22d6.akpm@linux-foundation.org> <4CACF453.5020205@zytor.com> <20101006154503.db30e742.akpm@linux-foundation.org> In-Reply-To: <20101006154503.db30e742.akpm@linux-foundation.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/06/2010 03:45 PM, Andrew Morton wrote: > > whomeidunno. The question is "is this something we want to know > about". If it's a BIOS/acpi/whatever error then I'd think "yes", > because that would then lead to useful kernel workarounds or BIOS > updates? I don't think it's inherently that... it could be in some cases, but not in others. In either case, an allocation failure should be handled in the calling layer... or we have a much more serious problem. However, I suspect the most common case where we'll hit this is when something wants to fit inside a chunk where it simply doesn't fit ... and it'll either move on to the next plausible chunk or fail at that point. -hpa