linux-kernel - Re: kdump broken on 2.6.37-rc4

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Date:	Thu, 16 Dec 2010 19:31:02 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yinghai@...nel.org>, Vivek Goyal <vgoyal@...hat.com>
CC:	Stanislaw Gruszka <sgruszka@...hat.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Vivek Goyal <vgoyal@...hat.com>,
	Maxim Uvarov <muvarov@...il.com>, linux-kernel@...r.kernel.org,
	Neil Horman <nhorman@...hat.com>
Subject: Re: kdump broken on 2.6.37-rc4

On 12/15/2010 08:29 PM, Yinghai Lu wrote:
> please check
> 
> [PATCH] x86, crashkernel, 32bit: only try to get range under 512M
> 
> Steanishlaw report kdump is 32bit is broken.
> 
> in misc.c for decompresser, it will do sanity checking to make sure heap
> heap under 512M.
> 
> So limit it in first kernel under 512M for 32bit system.
> 
> Reported-by: Stanislaw Gruszka <sgruszka@...hat.com>
> Signed-off-by: Yinghai Lu <yinghai@...nel.org>
> 
> ---
>  arch/x86/kernel/setup.c |   14 +++++++++++++-
>  1 file changed, 13 insertions(+), 1 deletion(-)
> 

I'd like to apply a modified version of this patch (attached.)

Ack/nak, people?

	-hpa

View attachment "0001-x86-kexec-Limit-the-crashkernel-address-to-512-MiB.patch" of type "text/x-patch" (1978 bytes)