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Date: Mon, 01 Apr 2013 15:20:43 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Yinghai Lu <yinghai@kernel.org>
CC: Vivek Goyal <vgoyal@redhat.com>, Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@elte.hu>, WANG Chao <chaowang@redhat.com>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] kexec: use Crash kernel for Crash kernel low
References: <20130320163131.GE2273@redhat.com> <1363807329-24975-1-git-send-email-yinghai@kernel.org> <20130325194245.GA7357@redhat.com> <CAE9FiQU6bGSAODX_-Vir6D-LyY-9Sm84rYzq=gNhDZ5whbia_w@mail.gmail.com> <20130326181418.GA6775@redhat.com> <20130401133428.GA13499@redhat.com> <5159D2E9.7080707@zytor.com> <20130401192606.GA17951@redhat.com> <5159F27E.7060300@zytor.com> <CAE9FiQXikU8-FkYYULHx50qP_ME2bRSzCC=8ZH8iDyUr2ug66g@mail.gmail.com> <515A03DB.6040107@zytor.com> <CAE9FiQWNFbFgXafJBvORRax+GNU_uf0KFnqZ5NQit0BeZZx9LA@mail.gmail.com>
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On 04/01/2013 03:17 PM, Yinghai Lu wrote:
> 
> And his last suggestion is just as his old second suggestion.
> 
> I just check the code again, it looks it is easy to change it to support:
> 1. crashkernel=XM
> 2. crashkernel_high=XM
> 3. crashkernel_high=XM crashkernel_low=YM
> 

Yes... my objections that you are giving the user the headache of
dealing with this very much remains, but I don't think we have any good
options.  However, the <size>,<options>.... syntax is at least
extensible, which the above syntax is not.

	-hpa


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