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Message-ID: <m1eirqtmey.fsf@fess.ebiederm.org>
Date: Wed, 05 Aug 2009 06:33:57 -0700
From: ebiederm@...ssion.com (Eric W. Biederman)
To: Amerigo Wang <amwang@...hat.com>
Cc: linux-kernel@...r.kernel.org, tony.luck@...el.com,
linux-ia64@...r.kernel.org, Neil Horman <nhorman@...hat.com>,
akpm@...ux-foundation.org, Ingo Molnar <mingo@...e.hu>,
Anton Vorontsov <avorontsov@...mvista.com>
Subject: Re: [Patch 0/7] Implement crashkernel=auto
Amerigo Wang <amwang@...hat.com> writes:
> 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 7/7 which contains an update for the documentation.
>
> Note: This patchset was only tested on x86_64 with differernt memory sizes.
This seems like a silly hard code. Especially for a feature distros don't
care enough about to implement a working initrd for.
Has anyone bothered to justify those large amounts of memory?
Where does the 128M go?
Please pardon me for being a cynic but I don't see the command line option
being the bottleneck for real users to make this work.
Eric
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