linux-kernel - Re: [PATCH v1] mm: migrate: don't rely on PageMovable() of newpage after unlocking it

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Message-ID: <9049df9c-296e-0ec7-5ee0-1a6978063ae7@redhat.com>
Date:   Wed, 30 Jan 2019 00:33:45 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Sasha Levin <sashal@...nel.org>, linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Michal Hocko <mhocko@...e.com>,
        Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
        Jan Kara <jack@...e.cz>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Matthew Wilcox <willy@...radead.org>,
        Vratislav Bendel <vbendel@...hat.com>,
        Rafael Aquini <aquini@...hat.com>,
        Konstantin Khlebnikov <k.khlebnikov@...sung.com>,
        Minchan Kim <minchan@...nel.org>, stable@...r.kernel.org
Subject: Re: [PATCH v1] mm: migrate: don't rely on PageMovable() of newpage
 after unlocking it

On 30.01.19 00:16, Sasha Levin wrote:
> Hi,
> 
> [This is an automated email]
> 
> This commit has been processed because it contains a "Fixes:" tag,
> fixing commit: d6d86c0a7f8d mm/balloon_compaction: redesign ballooned pages management.
> 
> The bot has tested the following trees: v4.20.5, v4.19.18, v4.14.96, v4.9.153, v4.4.172, v3.18.133.
> 
> v4.20.5: Build OK!
> v4.19.18: Build OK!
> v4.14.96: Build OK!
> v4.9.153: Build OK!
> v4.4.172: Failed to apply! Possible dependencies:
>     1031bc589228 ("lib/vsprintf: add %*pg format specifier")
>     14e0a214d62d ("tools, perf: make gfp_compact_table up to date")
>     1f7866b4aebd ("mm, tracing: make show_gfp_flags() up to date")
>     420adbe9fc1a ("mm, tracing: unify mm flags handling in tracepoints and printk")
>     53f9263baba6 ("mm: rework mapcount accounting to enable 4k mapping of THPs")
>     7cd12b4abfd2 ("mm, page_owner: track and print last migrate reason")
>     7d2eba0557c1 ("mm: add tracepoint for scanning pages")
>     c6c919eb90e0 ("mm: use put_page() to free page instead of putback_lru_page()")
>     d435edca9288 ("mm, page_owner: copy page owner info during migration")
>     d8c1bdeb5d6b ("page-flags: trivial cleanup for PageTrans* helpers")
>     eca56ff906bd ("mm, shmem: add internal shmem resident memory accounting")
>     edf14cdbf9a0 ("mm, printk: introduce new format string for flags")
> 
> v3.18.133: Failed to apply! Possible dependencies:
>     2847cf95c68f ("mm/debug-pagealloc: cleanup page guard code")
>     48c96a368579 ("mm/page_owner: keep track of page owners")
>     7cd12b4abfd2 ("mm, page_owner: track and print last migrate reason")
>     94f759d62b2c ("mm/page_owner.c: remove unnecessary stack_trace field")
>     c6c919eb90e0 ("mm: use put_page() to free page instead of putback_lru_page()")
>     d435edca9288 ("mm, page_owner: copy page owner info during migration")
>     e2cfc91120fa ("mm/page_owner: set correct gfp_mask on page_owner")
>     e30825f1869a ("mm/debug-pagealloc: prepare boottime configurable on/off")
>     eefa864b701d ("mm/page_ext: resurrect struct page extending code for debugging")
> 
> 
> How should we proceed with this patch?

I just sent a v2 and will send separate backports for 4.4 and 3.18 once
we agreed on the new patch. Thanks!

> 
> --
> Thanks,
> Sasha
> 


-- 

Thanks,

David / dhildenb