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Date: Fri, 07 Aug 2009 23:31:52 +0200
From: Bernhard Walle <bernhard.walle@gmx.de>
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Subject: Re: [Patch 0/7] Implement crashkernel=auto
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To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Neil Horman <nhorman@redhat.com>, tony.luck@intel.com, linux-ia64@vger.kernel.org, Amerigo Wang <amwang@redhat.com>, Kexec Mailing List <kexec@lists.infradead.org>, linux-kernel@vger.kernel.org, Andi Kleen <andi@firstfloor.org>, akpm@linux-foundation.org, Anton Vorontsov <avorontsov@ru.mvista.com>, Ingo Molnar <mingo@elte.hu>

Eric W. Biederman schrieb:
> 
> With the current set of crashkernel= options we are asking the
> distribution installer to perform magic.  Moving as much of this logic
> into a normal init script for better maintenance is desirable.

Not (necessarily) the installer but the program that configures kdump.
system-config-kdump on Red Hat, YaST on SUSE.

> Bernhard does that sound useful to you?

I don't see any problems. I don't know how much effort is it to free
already reserved crashkernel memory, but I guess it's not really
complicated. Maybe that "1/32" should be specified on the command line like


	crashkernel=>>5

(for 1/32*system_memory == system_memory>>5), OTOH I have no real strong
opinion.


Regards,
Bernhard

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