From: Michal Hocko <mhocko@kernel.org>
To: zhong jiang <zhongjiang@huawei.com>
Cc: akpm@linux-foundation.org, qiuxishi@huawei.com, vbabka@suse.cz,
mm-commits@vger.kernel.org,
Mike Kravetz <mike.kravetz@oracle.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Mel Gorman <mgorman@suse.de>,
linux-mm@kvack.org
Subject: Re: + mm-hugetlb-fix-race-when-migrate-pages.patch added to -mm tree
Date: Mon, 1 Aug 2016 13:02:03 +0200 [thread overview]
Message-ID: <20160801110203.GB13544@dhcp22.suse.cz> (raw)
In-Reply-To: <579C4A2E.4080009@huawei.com>
On Sat 30-07-16 14:33:18, zhong jiang wrote:
> On 2016/7/29 19:27, Michal Hocko wrote:
> > On Thu 21-07-16 09:43:40, Michal Hocko wrote:
> >> We have further discussed the patch and I believe it is not correct. See [1].
> >> I am proposing the following alternative.
> > Andrew, please drop the mm-hugetlb-fix-race-when-migrate-pages.patch. It
> > is clearly racy. Whether the BUG_ON update is really the right and
> > sufficient fix is not 100% clear yet and we are waiting for Zhong Jiang
> > testing.
>
> The issue is very hard to recur. Without attaching any patch to
> kernel code. up to now, it still not happens to it.
Hmm, OK. So what do you propose? Are you OK with the BUG_ON change or do
you think that this needs a deeper fix?
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2016-08-01 11:02 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <578eb28b.YbRUDGz5RloTVlrE%akpm@linux-foundation.org>
2016-07-21 7:43 ` + mm-hugetlb-fix-race-when-migrate-pages.patch added to -mm tree Michal Hocko
2016-07-21 8:13 ` Naoya Horiguchi
2016-07-21 10:29 ` Michal Hocko
2016-07-21 10:54 ` zhong jiang
2016-07-21 11:27 ` Michal Hocko
2016-07-21 12:14 ` zhong jiang
2016-07-21 12:30 ` Michal Hocko
2016-07-21 12:45 ` zhong jiang
2016-07-21 12:55 ` Michal Hocko
2016-07-21 13:25 ` zhong jiang
2016-07-21 13:40 ` Michal Hocko
2016-07-21 13:58 ` zhong jiang
2016-07-21 14:01 ` Michal Hocko
2016-07-21 14:13 ` zhong jiang
2016-07-21 14:27 ` Michal Hocko
2016-07-21 14:33 ` zhong jiang
2016-07-22 7:17 ` Naoya Horiguchi
2016-07-26 7:58 ` Michal Hocko
2016-07-26 14:04 ` zhong jiang
2016-07-27 14:44 ` Michal Hocko
2016-07-29 11:27 ` Michal Hocko
2016-07-30 6:33 ` zhong jiang
2016-08-01 11:02 ` Michal Hocko [this message]
2016-08-01 15:04 ` zhong jiang
2016-08-01 15:31 ` Michal Hocko
[not found] <003701d1e328$202ca9d0$6085fd70$@alibaba-inc.com>
2016-07-21 8:19 ` Hillf Danton
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