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Date: Wed, 13 May 2015 04:06:40 +0100
From: Matthew Garrett <mjg59@srcf.ucam.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Yinghai Lu <yinghai@kernel.org>,
        Matthew Garrett <matthew.garrett@coreos.com>,
        Ingo Molnar <mingo@kernel.org>,
        the arch/x86 maintainers <x86@kernel.org>,
        Ingo Molnar <mingo@redhat.com>, Thomas Gleixner <tglx@linutronix.de>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Matthew Garrett <mjg59@coreos.com>
Subject: Re: [PATCH V2] x86: Allow built-in command line to work in early
 kernel init
Message-ID: <20150513030640.GA4675@srcf.ucam.org>
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On Tue, May 12, 2015 at 07:46:11PM -0700, H. Peter Anvin wrote:
> On 05/12/2015 04:53 PM, Matthew Garrett wrote:
> > On Tue, May 12, 2015 at 04:41:22PM -0700, Yinghai Lu wrote:
> > 
> >> You can not assume that you can use buffer after cmd_line from bootloader
> >> blindly.
> > 
> > Are there any bootloaders that don't allocate a buffer of the maximum 
> > command line size?
> > 
> 
> YES!  In fact, it is quite common for the command line to be dynamically
> allocated.

Hmm. Well, this is a little awkward. Let me think about it.

-- 
Matthew Garrett | mjg59@srcf.ucam.org
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