linux-kernel - Re: [PATCH] kexec: use Crash kernel for Crash kernel low

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Message-ID: <CAE9FiQW1RzP5A_82qUP7gF_6-G3+Ceay_L1FQf7N=MMbQA4+iw@mail.gmail.com>
Date:	Mon, 1 Apr 2013 18:11:38 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Vivek Goyal <vgoyal@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, WANG Chao <chaowang@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kexec: use Crash kernel for Crash kernel low

On Mon, Apr 1, 2013 at 3:40 PM, Yinghai Lu <yinghai@...nel.org> wrote:
> On Mon, Apr 1, 2013 at 3:20 PM, H. Peter Anvin <hpa@...or.com> wrote:
>> 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.
>
> ok, will check crashkernel=XM,high

Please check attached four patches that should get into upstream for 3.9.
I sent first and second before.
other two is addressing old kexec-tools with kdump on new kernel.

Thanks

Yinghai

Download attachment "fix_crashkernel_low_v3.patch" of type "application/octet-stream" (5735 bytes)

Download attachment "crashkernel_low_remove.patch" of type "application/octet-stream" (823 bytes)

Download attachment "crashkernel_high_low_1.patch" of type "application/octet-stream" (5133 bytes)

Download attachment "crashkernel_high_low_2.patch" of type "application/octet-stream" (4516 bytes)