From: Gioh Kim <gioh.kim@lge.com>
To: Michal Nazarewicz <mina86@mina86.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: "Joonsoo Kim" <iamjoonsoo.kim@lge.com>,
"Mel Gorman" <mgorman@suse.de>, 이건호 <gunho.lee@lge.com>
Subject: [RFC] CMA page migration failure due to buffers on bh_lru
Date: Tue, 24 Jun 2014 10:12:50 +0900 [thread overview]
Message-ID: <53A8D092.4040801@lge.com> (raw)
Hello,
I am trying to apply CMA feature for my platform.
My kernel version, 3.10.x, is not allocating memory from CMA area so that I applied
a Joonsoo Kim's patch (https://lkml.org/lkml/2014/5/28/64).
Now my platform can use CMA area effectively.
But I have many failures to allocate memory from CMA area.
I found the same situation to Laura Abbott's patch descrbing, https://lkml.org/lkml/2012/8/31/313,
that releases buffer-heads attached at CPU's LRU list.
If Joonsoo's patch is applied and/or CMA feature is applied more and more,
buffer-heads problem is going to be serious definitely.
Please look into the Laura's patch again.
I think it must be applied with Joonsoo's patch.
--
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 reply other threads:[~2014-06-24 1:12 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 1:12 Gioh Kim [this message]
2014-06-26 15:57 ` [RFC] CMA page migration failure due to buffers on bh_lru Michal Nazarewicz
2014-06-26 23:23 ` Gioh Kim
2014-06-29 19:49 ` Laura Abbott
2014-07-01 1:07 ` Gioh Kim
2014-07-01 2:02 ` Laura Abbott
2014-07-02 5:46 ` Andrew Morton
2014-07-03 7:34 ` Gioh Kim
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=53A8D092.4040801@lge.com \
--to=gioh.kim@lge.com \
--cc=gunho.lee@lge.com \
--cc=iamjoonsoo.kim@lge.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=m.szyprowski@samsung.com \
--cc=mgorman@suse.de \
--cc=mina86@mina86.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;
as well as URLs for NNTP newsgroup(s).