linux-kernel - Re: [PATCH 0/3] Early use of boot service memory

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Message-ID: <5285DD15.6080700@iki.fi>
Date:	Fri, 15 Nov 2013 10:36:37 +0200
From:	Pekka Enberg <penberg@....fi>
To:	jerry.hoemann@...com, Pekka Enberg <penberg@...nel.org>
CC:	"H. Peter Anvin" <hpa@...or.com>, Rob Landley <rob@...dley.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	x86 maintainers <x86@...nel.org>,
	Matt Fleming <matt.fleming@...el.com>,
	Yinghai Lu <yinghai@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"list@...ederm.org:DOCUMENTATION" <linux-doc@...r.kernel.org>,
	"list@...ederm.org:MEMORY MANAGEMENT" <linux-mm@...ck.org>,
	linux-doc@...r.kernel.org, linux-efi@...r.kernel.org,
	Vivek Goyal <vgoyal@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/3] Early use of boot service memory

On 11/15/13 2:50 AM, jerry.hoemann@...com wrote:
> One already has to specify command line arguments to enable kdump.

Yes, so what?

The problem with your patch is that now to enable kdump, I have to know 
that there's a second command line option and if my firmware is "broken" 
or not.  The former is already a problem (how do I even know such a 
thing exists?) but the latter is almost impossible to solve from user 
point of view. And if I have a "broken" firmware, kdump won't work no 
matter what options I pass.

I really don't see what's practical about that.

                         Pekka
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