From: Dan Rue <dan.rue@linaro.org>
To: Michal Hocko <mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, Mike Kravetz <mike.kravetz@oracle.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 5/6] mm, hugetlb: further simplify hugetlb allocation API
Date: Wed, 21 Feb 2018 10:19:14 -0600 [thread overview]
Message-ID: <20180221161914.ltssyoumwpyiwca6@xps> (raw)
In-Reply-To: <20180221100107.GC2231@dhcp22.suse.cz>
On Wed, Feb 21, 2018 at 11:01:07AM +0100, Michal Hocko wrote:
> On Wed 21-02-18 10:55:26, Michal Hocko wrote:
> > On Tue 20-02-18 22:24:57, Dan Rue wrote:
> [...]
> > > I bisected the failure to this commit. The problem is seen on multiple
> > > architectures (tested x86-64 and arm64).
> >
> > The patch shouldn't have introduced any functional changes IIRC. But let
> > me have a look
>
> Hmm, I guess I can see it. Does the following help?
> ---
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index 7c204e3d132b..a963f2034dfc 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -1583,7 +1583,7 @@ static struct page *alloc_surplus_huge_page(struct hstate *h, gfp_t gfp_mask,
> page = NULL;
> } else {
> h->surplus_huge_pages++;
> - h->nr_huge_pages_node[page_to_nid(page)]++;
> + h->surplus_huge_pages_node[page_to_nid(page)]++;
> }
>
> out_unlock:
That did the trick. Confirmed fixed on v4.15-3389-g0c397daea1d4 and
v4.16-rc2 with the above patch.
Dan
> --
> Michal Hocko
> SUSE Labs
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next prev parent reply other threads:[~2018-02-21 16:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-03 9:32 [PATCH 0/6] mm, hugetlb: allocation API and migration improvements Michal Hocko
2018-01-03 9:32 ` [PATCH 1/6] mm, hugetlb: unify core page allocation accounting and initialization Michal Hocko
2018-01-03 9:32 ` [PATCH 2/6] mm, hugetlb: integrate giga hugetlb more naturally to the allocation path Michal Hocko
2018-01-03 9:32 ` [PATCH 3/6] mm, hugetlb: do not rely on overcommit limit during migration Michal Hocko
2018-01-03 9:32 ` [PATCH 4/6] mm, hugetlb: get rid of surplus page accounting tricks Michal Hocko
2018-01-03 9:32 ` [PATCH 5/6] mm, hugetlb: further simplify hugetlb allocation API Michal Hocko
2018-02-21 4:24 ` Dan Rue
2018-02-21 9:55 ` Michal Hocko
2018-02-21 10:01 ` Michal Hocko
2018-02-21 16:19 ` Dan Rue [this message]
2018-02-21 18:52 ` Michal Hocko
2018-02-21 19:05 ` Dan Rue
2018-02-21 17:59 ` Mike Kravetz
2018-02-21 18:54 ` Michal Hocko
2018-02-21 19:14 ` [PATCH] hugetlb: fix surplus pages accounting Michal Hocko
2018-01-03 9:32 ` [PATCH 6/6] hugetlb, mempolicy: fix the mbind hugetlb migration Michal Hocko
2018-01-04 0:05 ` [PATCH 0/6] mm, hugetlb: allocation API and migration improvements Andrew Morton
2018-01-04 7:32 ` Michal Hocko
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