linux-kernel - Re: Determine version of kernel that produced vmcore

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Date:	Mon, 16 Jul 2007 09:49:19 +0530
From:	Vivek Goyal <vgoyal@...ibm.com>
To:	"Ken'ichi Ohmichi" <oomichi@....nes.nec.co.jp>,
	Neil Horman <nhorman@...hat.com>, kexec@...ts.infradead.org,
	linux-kernel@...r.kernel.org, Bernhard Walle <bwalle@...e.de>
Subject: Re: Determine version of kernel that produced vmcore

On Fri, Jul 13, 2007 at 03:15:50PM +0200, Bernhard Walle wrote:
> * Ken'ichi Ohmichi <oomichi@....nes.nec.co.jp> [2007-07-13 13:05]:
> > 
> > BTW, I'd like to remove PAGESIZE from a mkdfinfo file.
> > While 2nd-kernel is running, new makedumpfile comes to consider
> > 2nd-kernel PAGESIZE as 1st-kernel PAGESIZE without getting PAGESIZE
> > from a mkdfinfo file.
> 
> I don't think that's a good idea. IMO the kernel should be modified to
> export the page size in a variable for that purpose. That would solve
> all problems and dependencies, doesn't it?
> 

Agreed. We need to export PAGESIZE from kernel instead of assuming that
second kernel as got same page size as first kernel.

Thanks
Vivek
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