linux-kernel - Re: [Patch 0/8] V4 Implement crashkernel=auto

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Message-ID: <4A91EE3D.7050805@redhat.com>
Date:	Mon, 24 Aug 2009 09:34:53 +0800
From:	Amerigo Wang <amwang@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	linux-kernel@...r.kernel.org, tony.luck@...el.com,
	linux-ia64@...r.kernel.org, nhorman@...hat.com,
	ebiederm@...ssion.com, kamezawa.hiroyu@...fujitsu.com,
	andi@...stfloor.org, bernhard.walle@....de, fenghua.yu@...el.com,
	mingo@...e.hu, avorontsov@...mvista.com, linuxppc-dev@...abs.org
Subject: Re: [Patch 0/8] V4 Implement crashkernel=auto

Andrew Morton wrote:
> (cc linuxppc-dev@...abs.org)
>
> On Fri, 21 Aug 2009 02:54:12 -0400
> Amerigo Wang <amwang@...hat.com> wrote:
>
>   
>> This series of patch implements automatically reserved memory for crashkernel,
>> by introducing a new boot option "crashkernel=auto". This idea is from Neil.
>>
>> In case of breaking user-space applications, it modifies this boot option after
>> it decides how much memory should be reserved.
>>
>> On different arch, the threshold and reserved memory size is different. Please
>> refer patch 8/8 which contains an update for the documentation.
>>
>> Patch 1/8 implements shrinking reserved memory at run-time, which is useful
>> when more than enough memory is reserved automatically.
>>
>> Note: This patchset was only tested on x86_64 with differernt memory sizes.
>>     
>
>
> I'd prefer that this change had been runtime tested on ia64 and powerpc
> and has had some quality review from relevant developers of those
> architectures.
>
> Looking at the cc's, I'm not sure that the powerpc guys even know about
> this work?
>
>   
Ok, let me try to find some ppc and ia64 machines in the company.. ;)

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