From: Christoph Lameter <clameter@sgi.com>
To: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andy Whitcroft <apw@shadowen.org>, Andrew Morton <akpm@osdl.org>,
Mel Gorman <mel@csn.ul.ie>, linux-mm <linux-mm@kvack.org>
Subject: Re: [Patch](memory hotplug) Hot-add with sparsemem-vmemmap
Date: Mon, 20 Aug 2007 11:56:33 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0708201154280.28863@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20070817155908.7D91.Y-GOTO@jp.fujitsu.com>
On Fri, 17 Aug 2007, Yasunori Goto wrote:
> Todo: # Even if this patch is applied, the message "[xxxx-xxxx] potential
> offnode page_structs" is displayed. To allocate memmap on its node,
> memmap (and pgdat) must be initialized itself like chicken and
> egg relationship.
Hmmmm.... You need to create something like the bootmem allocator?
Or relocate the memory map later.
Or just add a small piece of memory first so that only one memmap block is
placed off line?
> # vmemmap_unpopulate will be necessary for followings.
> - For cancel hot-add due to error.
> - For unplug.
>
> Please comment.
Looks fine to me.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2007-08-20 18:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-17 7:08 Yasunori Goto
2007-08-20 18:56 ` Christoph Lameter [this message]
2007-08-21 1:23 ` Yasunori Goto
2007-08-21 12:59 ` Mel Gorman
2007-08-22 1:28 ` Yasunori Goto
2007-08-30 11:04 ` [Patch](memory hotplug) Tiny update for hot-add " Yasunori Goto
2007-08-31 21:00 ` Mel Gorman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Pine.LNX.4.64.0708201154280.28863@schroedinger.engr.sgi.com \
--to=clameter@sgi.com \
--cc=akpm@osdl.org \
--cc=apw@shadowen.org \
--cc=linux-mm@kvack.org \
--cc=mel@csn.ul.ie \
--cc=y-goto@jp.fujitsu.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox