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

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Message-ID: <4D06783C.6040009@zytor.com>
Date:	Mon, 13 Dec 2010 11:47:08 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Stanislaw Gruszka <sgruszka@...hat.com>,
	Vivek Goyal <vgoyal@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	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 12/13/2010 10:20 AM, Yinghai Lu wrote:
> 
> it seems 32bit kdump need crashkernel much low than we expect...
> 
> Maybe we have to find_in_range_low() to make 32bit kdump happy.
> 

Not this garbage again... sigh.  Once again, I will want to know what
the actual constraint is... not just "oh, this seems to work on this one
system."

I realize that the kdump interfaces are probably beyond saving -- we
have had this discussion enough times -- but I'm not happy about it and
I will really want to know what the heck the real issue is.

Furthermore, such a function should NOT be private to x86 core; if it's
needed at all it should live in the memblock core.

	-hpa
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