Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755477Ab3H3GPj (ORCPT ); Fri, 30 Aug 2013 02:15:39 -0400 Received: from mail-ve0-f177.google.com ([209.85.128.177]:50340 "EHLO mail-ve0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755152Ab3H3GPh (ORCPT ); Fri, 30 Aug 2013 02:15:37 -0400 MIME-Version: 1.0 In-Reply-To: <20130830061413.GA29949@gmail.com> References: <1377841673-17361-1-git-send-email-bob.liu@oracle.com> <20130830061413.GA29949@gmail.com> Date: Fri, 30 Aug 2013 14:15:36 +0800 Message-ID: Subject: Re: [PATCH] x86: e820: fix memmap kernel boot parameter From: Bob Liu To: Dan Aloni Cc: Linux-Kernel , Andrew Morton , hpa@linux.intel.com, Yinghai Lu , jacob.shin@amd.com, Konrad Rzeszutek Wilk , Linux-MM , Bob Liu Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 956 Lines: 26 On Fri, Aug 30, 2013 at 2:14 PM, Dan Aloni wrote: > On Fri, Aug 30, 2013 at 01:47:53PM +0800, Bob Liu wrote: >>[..] >> Machine2: bootcmdline in grub.cfg "memmap=0x77ffffff$0x880000000", the result of >> "cat /proc/cmdline" changed to "memmap=0x77ffffffx880000000". >> >> I didn't find the root cause, I think maybe grub reserved "$0" as something >> special. >> Replace '$' with '%' in kernel boot parameter can fix this issue. > > You are correct with the root cause, however I don't think the patch is needed. > > In order to bypass grub's variable evaluation you can simply use escaping > and replace $ with \$ in your grub config. > I see, thank you very much! -- Regards, --Bob -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/