linux-kernel - Re: [PATCH] acpi memory hotplug, add parameter to disable memory hotplug [v2]

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Message-ID: <20140110144910.GB19115@redhat.com>
Date:	Fri, 10 Jan 2014 09:49:10 -0500
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Prarit Bhargava <prarit@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Len Brown <lenb@...nel.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>, kosaki.motohiro@...il.com,
	dyoung@...hat.com, linux-acpi@...r.kernel.org,
	kexec@...ts.infradead.org
Subject: Re: [PATCH] acpi memory hotplug, add parameter to disable memory
 hotplug [v2]

On Fri, Jan 10, 2014 at 09:36:55AM -0500, Prarit Bhargava wrote:

[..]
> This can also be reproduced by using the memmap=exactmap and mem=X
> parameters on the main kernel and booting.
> 
> This patchset resolves the problem by adding a kernel parameter,
> acpi_no_memhotplug, to disable ACPI memory hotplug.

Hi Prarit,

People seem to like the idea of disabling hotplug automatically if
memmap=exactmap or mem=X is passed on command line. Can you please take
care of that too. That way we would not have to modify kexec-tools and
kernel update will fix this issue.

Thanks
Vivek
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