linux-kernel - 4.1.28 is broken due to "mm/swap.c: flush lru pvecs on compound page arrival"

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Message-ID: <alpine.LRH.2.02.1607161037180.18821@file01.intranet.prod.int.rdu2.redhat.com>
Date:	Sat, 16 Jul 2016 10:46:17 -0400 (EDT)
From:	Mikulas Patocka <mpatocka@...hat.com>
To:	Lukasz Odzioba <lukasz.odzioba@...el.com>,
	Sasha Levin <sasha.levin@...cle.com>
cc:	Michal Hocko <mhocko@...e.com>,
	Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Vladimir Davydov <vdavydov@...allels.com>,
	Ming Li <mingli199x@...com>, Minchan Kim <minchan@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	stable@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: 4.1.28 is broken due to "mm/swap.c: flush lru pvecs on compound page
 arrival"

Hi

The patch c5ad33184354260be6d05de57e46a5498692f6d6 on the kernel v4.1.28 
breaks the kernel. The kernel crashes when executing the boot scripts with 
"kernel panic: Out of memory and no killable processes...". The machine 
has 512MB ram and 1 core.

Note that the upstream kernel 4.7-rc4 with this patch works, but when the 
patch is backported to the 4.1 branch, it makes the system unbootable.

Mikulas