linux-kernel - Re: [PATCH 3/3] x86, crash: Allocate enough low-mem when crashkernel=high

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Message-ID: <20150209122042.GA29106@8bytes.org>
Date:	Mon, 9 Feb 2015 13:20:42 +0100
From:	Joerg Roedel <joro@...tes.org>
To:	Joerg Roedel <jroedel@...e.de>
Cc:	Baoquan He <bhe@...hat.com>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] x86, crash: Allocate enough low-mem when
 crashkernel=high

Hi Baoquan,

On Wed, Feb 04, 2015 at 03:10:20PM +0100, Joerg Roedel wrote:
> That makes sense. I also asked the customer to test intermediate values,
> we already know that it works with 256MB but also that 128MB are not
> enough. I will report back when I have the results of the intermediate
> values in 32MB steps.

I got the results from the customer, and it turns out that a value of
192MB is sufficient to make the kdump succeed. It fails with 128MB and
160MB. 

So I think we can settle in 192MB for now. What do you think?

Regards,

	Joerg

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