From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755713AbZHELTr (ORCPT ); Wed, 5 Aug 2009 07:19:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754520AbZHELTq (ORCPT ); Wed, 5 Aug 2009 07:19:46 -0400 Received: from mx2.redhat.com ([66.187.237.31]:41941 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751282AbZHELTp (ORCPT ); Wed, 5 Aug 2009 07:19:45 -0400 Date: Wed, 5 Aug 2009 07:19:02 -0400 From: Amerigo Wang To: linux-kernel@vger.kernel.org Cc: tony.luck@intel.com, linux-ia64@vger.kernel.org, Neil Horman , "Eric W. Biederman" , Amerigo Wang , akpm@linux-foundation.org, Ingo Molnar , Anton Vorontsov Message-Id: <20090805112123.6552.73574.sendpatchset@localhost.localdomain> Subject: [Patch 0/7] Implement crashkernel=auto Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series of patch implements automatically reserved memory for crashkernel, by introducing a new boot option "crashkernel=auto". This idea is from Neil. In case of breaking user-space applications, it modifies this boot option after it decides how much memory should be reserved. On different arch, the threshold and reserved memory size is different. Please refer patch 7/7 which contains an update for the documentation. Note: This patchset was only tested on x86_64 with differernt memory sizes. Signed-off-by: WANG Cong Cc: Neil Horman Cc: Ingo Molnar Cc: Eric W. Biederman Cc: Tony Luck Cc: Anton Vorontsov