[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <alpine.DEB.2.23.453.2008111442301.3428139@chino.kir.corp.google.com>
Date: Tue, 11 Aug 2020 14:46:09 -0700 (PDT)
From: David Rientjes <rientjes@...gle.com>
To: Baoquan He <bhe@...hat.com>
cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
akpm@...ux-foundation.org, sonnyrao@...omium.org, yuzhao@...gle.com
Subject: Re: [PATCH] Revert "mm/vmstat.c: do not show lowmem reserve protection
information of empty zone"
On Tue, 11 Aug 2020, Baoquan He wrote:
> This reverts commit 26e7deadaae1755faf1f6d1a68988c4b8348df59.
>
> Sonny reported that one of their tests started failing on the latest
> kernel on their Chrome OS platform. The root cause is that the above
> commit removed the protection line of empty zone, while the parser used
> in the test relies on the protection line to mark the end of each zone.
>
> Let's revert it to avoid breaking userspace testing or applications.
>
Acked-by: David Rientjes <rientjes@...gle.com>
No objection since I noted userspace parsing as a potential risk in
https://marc.info/?l=linux-mm&m=158507790824995 but I didn't catch this
earlier patch which could have led to the same thing.
Powered by blists - more mailing lists