From: zhong jiang <zhongjiang@huawei.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: qiuxishi@huawei.com, guohanjun@huawei.com, zhangdianfang@huawei.com
Subject: memory-hotplug have such a problem.
Date: Mon, 26 Oct 2015 16:31:30 +0800 [thread overview]
Message-ID: <562DE4E2.2040401@huawei.com> (raw)
when I test the memory online or offline, I find the problem that
memory online always return an error. I peform the operation as follow:
cd /sys/device/system/memory/
echo online > state
it always print "-bash: echo: write error: Operation not permitted".
By my alalysis, I find that the error happen in the memory_notifier(MEM_GOING_ONLINE,&arg)
in the function(online_pages()).
The problem occur in the latest kernel versin (linux 4.3.0 -rc4) , but In the lower version
(linux 3.10) is correct. I think it may be caused by the confilct.
Thanks
zhongjiang
--
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>
WARNING: multiple messages have this Message-ID (diff)
From: zhong jiang <zhongjiang@huawei.com>
To: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>
Cc: <qiuxishi@huawei.com>, <guohanjun@huawei.com>,
<zhangdianfang@huawei.com>
Subject: memory-hotplug have such a problem.
Date: Mon, 26 Oct 2015 16:31:30 +0800 [thread overview]
Message-ID: <562DE4E2.2040401@huawei.com> (raw)
when I test the memory online or offline, I find the problem that
memory online always return an error. I peform the operation as follow:
cd /sys/device/system/memory/
echo online > state
it always print "-bash: echo: write error: Operation not permitted".
By my alalysis, I find that the error happen in the memory_notifier(MEM_GOING_ONLINE,&arg)
in the function(online_pages()).
The problem occur in the latest kernel versin (linux 4.3.0 -rc4) , but In the lower version
(linux 3.10) is correct. I think it may be caused by the confilct.
Thanks
zhongjiang
next reply other threads:[~2015-10-26 8:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-26 8:31 zhong jiang [this message]
2015-10-26 8:31 ` memory-hotplug have such a problem zhong jiang
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=562DE4E2.2040401@huawei.com \
--to=zhongjiang@huawei.com \
--cc=guohanjun@huawei.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=qiuxishi@huawei.com \
--cc=zhangdianfang@huawei.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.