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Date: Wed, 21 Jun 2017 19:16:02 +0200
From: Willy Tarreau <w@1wt.eu>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>, Hugh Dickins <hughd@google.com>,
        Andrey Vagin <avagin@openvz.org>, LKML <linux-kernel@vger.kernel.org>,
        Pavel Emelyanov <xemul@virtuozzo.com>,
        Dmitry Safonov <dsafonov@virtuozzo.com>,
        Andrew Morton <akpm@linuxfoundation.org>,
        Adrian Reber <areber@redhat.com>
Subject: Re: [criu] 1M guard page ruined restore
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Hi Oleg,

On Wed, Jun 21, 2017 at 07:01:29PM +0200, Oleg Nesterov wrote:
> Ah. I forgot about another kernel "feature" ;) not related to the recent guard
> page changes...
> 
> Could you test the patch below?

FWIW, I've just checked here on 3.10.107-rc and while I observe the same
regression as Cyrill with his reproducer, I can confirm that your patch
fixes it on this kernel.

Willy