From: Andi Kleen <andi@firstfloor.org>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Andi Kleen <andi@firstfloor.org>,
akpm@linux-foundation.org, linux-mm@kvack.org,
gerald.schaefer@de.ibm.com, rjw@sisk.pl,
linux-kernel@vger.kernel.org,
Yasunori Goto <y-goto@jp.fujitsu.com>
Subject: Re: [PATCH] Allow memory hotplug and hibernation in the same kernel
Date: Fri, 13 Nov 2009 12:35:09 +0100 [thread overview]
Message-ID: <20091113113509.GB30880@basil.fritz.box> (raw)
In-Reply-To: <20091113200745.33CE.A69D9226@jp.fujitsu.com>
On Fri, Nov 13, 2009 at 08:13:23PM +0900, KOSAKI Motohiro wrote:
> (cc to goto-san)
>
> > Allow memory hotplug and hibernation in the same kernel
> >
> > Memory hotplug and hibernation was excluded in Kconfig. This is obviously
> > a problem for distribution kernels who want to support both in the same
> > image.
>
> Sure.
>
> This exclusion is nearly meaningless. if anybody remove cpu, memory and/or
> various peripheral from hibernated machine. the system might not resume.
> it's obvious. memory is not special.
The main motivation for the patch is really just to allow both in the
same kernel (so the Kconfig change). The actual exclusion is
not really very interesting as you point out.
Otherwise memory hotadd is not usable in universal kernel that
runs on laptops too.
-Andi
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next prev parent reply other threads:[~2009-11-13 11:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-13 10:59 Andi Kleen
2009-11-13 11:13 ` KOSAKI Motohiro
2009-11-13 11:32 ` KOSAKI Motohiro
2009-11-13 11:36 ` Andi Kleen
2009-11-13 11:35 ` Andi Kleen [this message]
2009-11-13 20:16 ` Rafael J. Wysocki
2009-11-14 0:15 ` Andi Kleen
2009-11-14 18:57 ` Rafael J. Wysocki
2009-11-13 23:51 ` Andrew Morton
2009-11-14 0:08 ` Andi Kleen
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