linux-kernel - Re: [PATCH v11 0/6] Use pageblock_order for cma and alloc_contig

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Message-ID: <0E75B247-8150-48A3-83AE-56C586030006@nvidia.com>
Date:   Thu, 28 Apr 2022 08:39:06 -0400
From:   Zi Yan <ziy@...dia.com>
To:     Qian Cai <quic_qiancai@...cinc.com>
Cc:     David Hildenbrand <david@...hat.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        Vlastimil Babka <vbabka@...e.cz>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Eric Ren <renzhengeek@...il.com>,
        Mike Rapoport <rppt@...nel.org>,
        Oscar Salvador <osalvador@...e.de>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v11 0/6] Use pageblock_order for cma and alloc_contig_range alignment.

On 28 Apr 2022, at 8:33, Qian Cai wrote:

> On Wed, Apr 27, 2022 at 05:04:39PM -0400, Zi Yan wrote:
>> Do you mind checking if the patch below fixes the issue? It works
>> for me.
>>
>> The original code was trying to migrate non-migratible compound pages
>> (high-order slab pages from my tests) during isolation and caused
>> an infinite loop. The patch avoids non-migratible pages.
>>
>> I will update my patch series once we confirm the patch fixes
>> the bug.
>
> I am not able to apply it on today's linux-next tree.
>
> $ patch -Np1 --dry-run < ../patch/migrate.patch
> checking file mm/page_isolation.c
> Hunk #1 FAILED at 367.
> 1 out of 1 hunk FAILED

How about the one attached? I can apply it to next-20220428. Let me know
if you are using a different branch. Thanks.


--
Best Regards,
Yan, Zi

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