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

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Message-ID: <20101216100050.GA2261@redhat.com>
Date:	Thu, 16 Dec 2010 11:00:50 +0100
From:	Stanislaw Gruszka <sgruszka@...hat.com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	"H. Peter Anvin" <hpa@...or.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 Wed, Dec 15, 2010 at 08:29:01PM -0800, Yinghai Lu wrote:
> please check
> 
> [PATCH] x86, crashkernel, 32bit: only try to get range under 512M
> 
> Steanishlaw report kdump is 32bit is broken.
LOL

> 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>

Patch fix problem on my T-60 laptop.

As expected patch does not help on my other T-500 x86_64 system,
kdump not work there, but perhaps this is a different problem,
I'm going to check it.

Stanislaw
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