linux-kernel - Re: [PATCH v2 1/2] mm/migrate: Fix read-only page got writable when recover pte

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Message-ID: <Y212aAxqCtFszhTq@x1n>
Date:   Thu, 10 Nov 2022 17:08:40 -0500
From:   Peter Xu <peterx@...hat.com>
To:     Ives van Hoorne <ives@...esandbox.io>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Andrea Arcangeli <aarcange@...hat.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Nadav Amit <nadav.amit@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>, stable@...r.kernel.org
Subject: Re: [PATCH v2 1/2] mm/migrate: Fix read-only page got writable when
 recover pte

On Thu, Nov 10, 2022 at 01:53:25PM -0800, Ives van Hoorne wrote:
> I verified these latest changes with my initial test case, and can confirm
> that I haven't been able to reproduce the problem anymore! Usually, I would
> be able to reproduce the error after ~1-5 runs, given that I would fill the
> page cache before the run, now I have been running the same test case for
> 50+ times, and I haven't seen the error anymore.
> 
> Thanks again Peter for taking the time to find the issue and coming up with
> a fix!

Thanks for the quick feedback, Ives!

-- 
Peter Xu