From: Mel Gorman <mgorman@techsingularity.net>
To: Li Wang <liwang@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>,
Minchan Kim <minchan@kernel.org>, linux-mm <linux-mm@kvack.org>
Subject: Re: v5.1-rc5 s390x WARNING
Date: Fri, 19 Apr 2019 09:52:56 +0100 [thread overview]
Message-ID: <20190419085256.GI18914@techsingularity.net> (raw)
In-Reply-To: <CAEemH2eN55Nuvqngvpr1=1LU16KTbPAKo0-ZZW3Da6YX1S3kZw@mail.gmail.com>
On Fri, Apr 19, 2019 at 04:41:24PM +0800, Li Wang wrote:
> > Avoiding the scenario is pointless because it's not wrong. The check was
> > initially meant to catch serious programming errors such as using a
> > stale page pointer so I think the right patch is below. Li Wang, how
> > reproducible is this and would you be willing to test it?
> >
>
> It's not easy to reproduce that again. I just saw only once during the OOM
> phase that occurred on my s390x platform.
>
> Sure, I run the stress test against a new kernel(build with this patch
> applied) for many rounds, so far so good.
>
I think the patch is safe enough and have sent it on to Andrew. Thanks
for reporting and testing this, it's appreciated.
--
Mel Gorman
SUSE Labs
next prev parent reply other threads:[~2019-04-19 8:53 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-17 8:35 v5.1-rc5 s390x WARNING Li Wang
2019-04-17 8:54 ` Vlastimil Babka
2019-04-18 13:54 ` Mel Gorman
2019-04-18 14:37 ` Matthew Wilcox
2019-04-18 15:25 ` Mel Gorman
2019-04-19 12:53 ` Vlastimil Babka
2019-04-19 8:41 ` Li Wang
2019-04-19 8:52 ` Mel Gorman [this message]
2019-04-19 12:51 ` Vlastimil Babka
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