From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Wed, 16 Apr 2008 11:23:41 +0900
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: Warning on memory offline (and possible in usual migration?)
Message-Id: <20080416112341.ef1d5452.kamezawa.hiroyu@jp.fujitsu.com>
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To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Christoph Lameter <clameter@sgi.com>, "linux-mm@kvack.org" <linux-mm@kvack.org>, npiggin@suse.de, Andrew Morton <akpm@linux-foundation.org>, GOTO <y-goto@jp.fujitsu.com>
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On Wed, 16 Apr 2008 09:23:34 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:

> What I experienced was.
> ==
> %echo offline > /sys/device/system/memoryXXXX/state
> ...wait for a minute
> Ctrl-C
> % sync
> % sync
> % echo offline > /sys/device/system/memoryXXXX/state
> ...wait for a minute
> % echo 3 > /proc/sys/vm/drop_caches
> % echo offline > /sys/device/system/memoryXXXX/state
> success.
> ==
> 
> I'll see what happens wish -EBUSY but maybe no help...
> 
Adding -EBUSY was no help. some pages seems never to be Uptodate...

== prinkt result  ==
not-up-to-date a000400144d83768 60000000000801
not-up-to-date a000400144d83d98 60000000000801
not-up-to-date a000400144d840b0 60000000000801
not-up-to-date a000400144d842a8 60000000000801
not-up-to-date a000400144d8a638 60000000000801
not-up-to-date a000400144d8f780 60000000000801
not-up-to-date a000400144d901a0 60000000000801
not-up-to-date a000400144d915e0 60000000000801
not-up-to-date a000400144d937a0 60000000000801
not-up-to-date a000400144d95d50 60000000000801
not-up-to-date a000400144d97028 60000000000801
not-up-to-date a000400144d97e38 60000000000801
not-up-to-date a000400144d99398 60000000000801
not-up-to-date a000400144d995d8 60000000000801
not-up-to-date a000400144df4e98 60000000000801
not-up-to-date a000400144df5ee8 60000000000801
not-up-to-date a000400144df7010 60000000000801
not-up-to-date a000400144df7400 60000000000801
== repeated.

Hmm...

Thanks,
-Kame


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