From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Cc: Andi Kleen <andi@firstfloor.org>,
Huang Ying <ying.huang@intel.com>,
Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>,
LKLM <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/3 -v2] Fix the wrong corrupted page information of hugetlb page.
Date: Fri, 21 Jan 2011 18:56:04 +0900 [thread overview]
Message-ID: <20110121095604.GC8897@spritzera.linux.bs1.fc.nec.co.jp> (raw)
In-Reply-To: <4D394120.3020509@np.css.fujitsu.com>
On Fri, Jan 21, 2011 at 05:17:36PM +0900, Jin Dongming wrote:
> When more than on tail page of the same mapped hugetlb page are
> poisoned at the same time, the sum of corrupted page should be
> the size of one hugetlb page(512 pages). But HardwareCorrupted
> information in /proc/meminfo is 1024 pages or more.
>
> That is because when the above condition happened,
> __memory_failure() will be called many times and pages in hugetlb
> page are accounted more than one time.
>
> This patch fixed it by incrementing the number of corrupted page
> one by one.
>
> -v2 fix checking for "just unpoisoned".
>
> Signed-off-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
> Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
prev parent reply other threads:[~2011-01-21 9:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-21 1:24 [PATCH 3/3] " Jin Dongming
2011-01-21 5:12 ` Naoya Horiguchi
2011-01-21 6:05 ` Jin Dongming
2011-01-21 8:17 ` [PATCH 3/3 -v2] " Jin Dongming
2011-01-21 9:56 ` Naoya Horiguchi [this message]
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