linux-kernel - Re: [PATCH] x86, kdump: Set crashkernel

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Message-ID: <CAE9FiQW1CHJ-j9aFgdtKEsgyZSTHTS1HzgMSGM8FnV7Ns3kUvw@mail.gmail.com>
Date:	Mon, 11 Mar 2013 10:58:39 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>, WANG Chao <chaowang@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86, kdump: Set crashkernel_low automatically

On Mon, Mar 11, 2013 at 8:02 AM, Vivek Goyal <vgoyal@...hat.com> wrote:
>
> IOW, wouldn't it be better that crashkernel=X first tries to find
> requested amount of memory in lowest memory area available/possible.

Yest, that is much better, and user even could stay with old kexec-tools
for system that does not tons of memory.
And I don't need to mess up with auto setting crashkernel_low or export
swiotlb_size() etc.

Please check if you are ok with attached one.

Thanks

Yinghai

Download attachment "fix_crashkernel_low_v2.patch" of type "application/octet-stream" (3094 bytes)