From: Andrew Morton <akpm@linux-foundation.org>
To: Peter Xu <peterx@redhat.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
James Houghton <jthoughton@google.com>,
Jann Horn <jannh@google.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Rik van Riel <riel@surriel.com>,
Nadav Amit <nadav.amit@gmail.com>,
Miaohe Lin <linmiaohe@huawei.com>,
Muchun Song <songmuchun@bytedance.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
David Hildenbrand <david@redhat.com>
Subject: Re: [PATCH 00/10] mm/hugetlb: Make huge_pte_offset() thread-safe for pmd unshare
Date: Tue, 29 Nov 2022 13:26:19 -0800 [thread overview]
Message-ID: <20221129132619.f982806393c607fc20c9cb34@linux-foundation.org> (raw)
In-Reply-To: <Y4Z3eKU/hYFOyGnU@x1n>
On Tue, 29 Nov 2022 16:19:52 -0500 Peter Xu <peterx@redhat.com> wrote:
> On Tue, Nov 29, 2022 at 12:49:44PM -0800, Andrew Morton wrote:
> > On Tue, 29 Nov 2022 14:35:16 -0500 Peter Xu <peterx@redhat.com> wrote:
> >
> > > Based on latest mm-unstable (9ed079378408).
> > >
> > > This can be seen as a follow-up series to Mike's recent hugetlb vma lock
> > > series for pmd unsharing, but majorly covering safe use of huge_pte_offset.
> >
> > We're at -rc7 (a -rc8 appears probable this time) and I'm looking to
> > settle down and stabilize things...
>
> I targeted this series for the next release not current, because there's no
> known report for it per my knowledge.
>
> The reproducer needs explicit kernel delays to trigger as mentioned in the
> cover letter. So far I didn't try to reproduce with a generic kernel yet
> but just to verify the existance of the problem.
OK, thanks, I missed that.
I'll give the series a run in -next for a couple of days then I'll pull
it out until after the next Linus merge window, so it can't invalidate
testing heading into that merge window.
next prev parent reply other threads:[~2022-11-29 21:26 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-29 19:35 Peter Xu
2022-11-29 19:35 ` [PATCH 01/10] mm/hugetlb: Let vma_offset_start() to return start Peter Xu
2022-11-30 10:11 ` David Hildenbrand
2022-11-29 19:35 ` [PATCH 02/10] mm/hugetlb: Don't wait for migration entry during follow page Peter Xu
2022-11-30 4:37 ` Mike Kravetz
2022-11-30 10:15 ` David Hildenbrand
2022-11-29 19:35 ` [PATCH 03/10] mm/hugetlb: Document huge_pte_offset usage Peter Xu
2022-11-30 4:55 ` Mike Kravetz
2022-11-30 15:58 ` Peter Xu
2022-12-05 21:47 ` Mike Kravetz
2022-11-30 10:21 ` David Hildenbrand
2022-11-30 10:24 ` David Hildenbrand
2022-11-30 16:09 ` Peter Xu
2022-11-30 16:11 ` David Hildenbrand
2022-11-30 16:25 ` Peter Xu
2022-11-30 16:31 ` David Hildenbrand
2022-11-29 19:35 ` [PATCH 04/10] mm/hugetlb: Move swap entry handling into vma lock when faulted Peter Xu
2022-12-05 22:14 ` Mike Kravetz
2022-12-05 23:36 ` Peter Xu
2022-11-29 19:35 ` [PATCH 05/10] mm/hugetlb: Make userfaultfd_huge_must_wait() safe to pmd unshare Peter Xu
2022-11-30 16:08 ` David Hildenbrand
2022-12-05 22:23 ` Mike Kravetz
2022-11-29 19:35 ` [PATCH 06/10] mm/hugetlb: Make hugetlb_follow_page_mask() " Peter Xu
2022-11-30 16:09 ` David Hildenbrand
2022-12-05 22:29 ` Mike Kravetz
2022-11-29 19:35 ` [PATCH 07/10] mm/hugetlb: Make follow_hugetlb_page() " Peter Xu
2022-11-30 16:09 ` David Hildenbrand
2022-12-05 22:45 ` Mike Kravetz
2022-11-29 19:35 ` [PATCH 08/10] mm/hugetlb: Make walk_hugetlb_range() " Peter Xu
2022-11-30 16:11 ` David Hildenbrand
2022-12-05 23:33 ` Mike Kravetz
2022-12-05 23:52 ` John Hubbard
2022-12-06 16:45 ` Peter Xu
2022-12-06 18:50 ` Mike Kravetz
2022-12-06 21:03 ` John Hubbard
2022-12-06 21:51 ` Peter Xu
2022-12-06 22:31 ` John Hubbard
2022-12-07 0:07 ` Peter Xu
2022-12-07 2:38 ` John Hubbard
2022-12-07 14:58 ` Peter Xu
2022-11-29 19:35 ` [PATCH 09/10] mm/hugetlb: Make page_vma_mapped_walk() " Peter Xu
2022-11-30 16:18 ` David Hildenbrand
2022-11-30 16:32 ` Peter Xu
2022-11-30 16:39 ` David Hildenbrand
2022-12-05 23:52 ` Mike Kravetz
2022-12-06 17:10 ` Mike Kravetz
2022-12-06 17:39 ` Peter Xu
2022-12-06 17:43 ` Peter Xu
2022-12-06 19:58 ` Mike Kravetz
2022-11-29 19:35 ` [PATCH 10/10] mm/hugetlb: Introduce hugetlb_walk() Peter Xu
2022-11-30 5:18 ` Eric Biggers
2022-11-30 15:37 ` Peter Xu
2022-12-06 0:21 ` Mike Kravetz
2022-11-29 20:49 ` [PATCH 00/10] mm/hugetlb: Make huge_pte_offset() thread-safe for pmd unshare Andrew Morton
2022-11-29 21:19 ` Peter Xu
2022-11-29 21:26 ` Andrew Morton [this message]
2022-11-29 20:51 ` Andrew Morton
2022-11-29 21:36 ` Peter Xu
2022-11-30 9:46 ` David Hildenbrand
2022-11-30 16:23 ` Peter Xu
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