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Subject: Re: [PATCH v2 1/2] mm/migrate: Fix read-only page got writable when
 recover pte
From:   Nadav Amit <nadav.amit@gmail.com>
In-Reply-To: <20221110203132.1498183-2-peterx@redhat.com>
Date:   Thu, 10 Nov 2022 13:28:31 -0800
Cc:     kernel list <linux-kernel@vger.kernel.org>,
        Linux-MM <linux-mm@kvack.org>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Axel Rasmussen <axelrasmussen@google.com>,
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On Nov 10, 2022, at 12:31 PM, Peter Xu <peterx@redhat.com> wrote:

> Ives van Hoorne from codesandbox.io reported an issue regarding possible
> data loss of uffd-wp when applied to memfds on heavily loaded systems.  The
> sympton is some read page got data mismatch from the snapshot child VMs.

symptom (if you care)

Other than that LGTM