From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755120AbZLYCkr (ORCPT ); Thu, 24 Dec 2009 21:40:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752217AbZLYCkq (ORCPT ); Thu, 24 Dec 2009 21:40:46 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42362 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752191AbZLYCkq (ORCPT ); Thu, 24 Dec 2009 21:40:46 -0500 Date: Thu, 24 Dec 2009 21:40:32 -0500 From: Amerigo Wang To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, Amerigo Wang , "David S. Miller" Message-Id: <20091225024340.4431.59297.sendpatchset@localhost.localdomain> Subject: [Patch] console: limit the range of VGACON_SOFT_SCROLLBACK_SIZE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org BuraphaLinux reported that we will trigger a mm warning when we CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=65536, this is because mm cann't allocate so many pages. We should limit the range of CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, don't give a user any chance to trigger that. Reported-by: BuraphaLinux Server Signed-off-by: WANG Cong Cc: David S. Miller --- diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig index fc7d9bb..8e8f18d 100644 --- a/drivers/video/console/Kconfig +++ b/drivers/video/console/Kconfig @@ -37,6 +37,7 @@ config VGACON_SOFT_SCROLLBACK config VGACON_SOFT_SCROLLBACK_SIZE int "Scrollback Buffer Size (in KB)" depends on VGACON_SOFT_SCROLLBACK + range 1 1024 default "64" help Enter the amount of System RAM to allocate for the scrollback