From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754294Ab1EFWkJ (ORCPT ); Fri, 6 May 2011 18:40:09 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:39148 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752666Ab1EFWkH (ORCPT ); Fri, 6 May 2011 18:40:07 -0400 Date: Fri, 6 May 2011 15:39:14 -0700 From: Andrew Morton To: Yinghai Lu Cc: Ingo Molnar , "H. Peter Anvin" , Thomas Gleixner , Stefan Hellermann , linux-kernel@vger.kernel.org Subject: Re: PATCH] mm: Use alloc_bootmem_node_nopanic on really needed path Message-Id: <20110506153914.b1bceb51.akpm@linux-foundation.org> In-Reply-To: <4DC47655.5040201@kernel.org> References: <4DC30251.9040902@the2masters.de> <4DC31D5F.8070209@the2masters.de> <4DC31F72.5050206@kernel.org> <4DC328AC.1060906@the2masters.de> <4DC3958F.1090800@kernel.org> <4DC3B6C6.7000704@the2masters.de> <4DC47655.5040201@kernel.org> X-Mailer: Sylpheed 3.0.2 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 06 May 2011 15:29:41 -0700 Yinghai Lu wrote: > Stefan found nobootmem does not work on his system that only have 8M ram. What does "does not work" mean? From the patch, it appears that the machine paniced? This is important because without a recognisable description of the failure it is hard for people to determine whether your patch might fix a problem which they are observing. The patch applies to 2.6.36, 37 and 38 (at least). Do you think it should be backported? If so, how far back in time is it applicable?