From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762256Ab3DBUZW (ORCPT ); Tue, 2 Apr 2013 16:25:22 -0400 Received: from mx1.redhat.com ([209.132.183.28]:12871 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761031Ab3DBUZU (ORCPT ); Tue, 2 Apr 2013 16:25:20 -0400 Date: Tue, 2 Apr 2013 16:25:05 -0400 From: Vivek Goyal To: Yinghai Lu Cc: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , WANG Chao , "Eric W. Biederman" , Linux Kernel Mailing List Subject: Re: [PATCH 3/4] x86, kdump: Retore crashkernel= to allocate low Message-ID: <20130402202505.GK29506@redhat.com> References: <1364923183-316-1-git-send-email-yinghai@kernel.org> <1364923183-316-4-git-send-email-yinghai@kernel.org> <20130402180606.GI29506@redhat.com> <20130402191130.GB31760@redhat.com> <20130402201148.GJ29506@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130402201148.GJ29506@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 02, 2013 at 04:11:48PM -0400, Vivek Goyal wrote: [..] > > No, that is not just disable. User could want more like 128M instead of 72M. So apart from swiotlb, are there other scenarios where we need to reserve low memory (With main memory reserved high). Thanks Vivek