From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with ESMTP id 4AA0D6B01F6 for ; Wed, 25 Aug 2010 15:14:52 -0400 (EDT) Message-ID: <4C756BA0.2090700@zytor.com> Date: Wed, 25 Aug 2010 12:14:40 -0700 From: "H. Peter Anvin" MIME-Version: 1.0 Subject: Re: [BUGFIX][PATCH 1/2] x86, mem: separate x86_64 vmalloc_sync_all() into separate functions References: <4C6E4ECD.1090607@linux.intel.com> <87r5hni19y.fsf@basil.nowhere.org> In-Reply-To: <87r5hni19y.fsf@basil.nowhere.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Andi Kleen Cc: Haicheng Li , Ingo Molnar , Thomas Gleixner , "akpm@linux-foundation.org" , "ak@linux.intel.com" , Wu Fengguang , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" List-ID: On 08/25/2010 12:45 AM, Andi Kleen wrote: > Haicheng Li writes: > >> hello, >> >> Resend these two patches for bug fixing: >> >> The bug is that when memory hotplug-adding happens for a large enough area that a new PGD entry is >> needed for the direct mapping, the PGDs of other processes would not get updated. This leads to some >> CPUs oopsing when they have to access the unmapped areas, e.g. onlining CPUs on the new added node. > > The patches look good to me. Can we please move forward with this? > > Reviewed-by: Andi Kleen > The patches are mangled so they don't apply even with patch -l -- Haicheng, could you send me another copy, as an attachment if necessary? -hpa -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org