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

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Message-ID: <20220428123308.GA71@qian>
Date:   Thu, 28 Apr 2022 08:33:08 -0400
From:   Qian Cai <quic_qiancai@...cinc.com>
To:     Zi Yan <ziy@...dia.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 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