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From: Ian Jackson <ian.jackson@eu.citrix.com>
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Date: Thu, 21 Jul 2016 13:45:40 +0100
To: "stable@vger.kernel.org" <stable@vger.kernel.org>
CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        "Odzioba, Lukasz" <lukasz.odzioba@intel.com>,
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        "boris.ostrovsky@oracle.com" <boris.ostrovsky@oracle.com>,
        "david.vrabel@citrix.com" <david.vrabel@citrix.com>,
        "akpm@linux-foundation.org" <akpm@linux-foundation.org>,
        Sebastian Gottschall <s.gottschall@dd-wrt.com>
Subject: Re: Revert c5ad33184354260be6d05de57e46a5498692f6d6 "mm/swap.c: flush
 lru pvecs on compound page arrival" from stable tree?
 Was:[osstest-admin@xenproject.org: [Xen-devel] [linux-4.1 bisection] complete
 test-amd64-i386-qemut-rhel6hvm-amd]
In-Reply-To: <73189037-1a4e-915a-7120-112f2afe3342@dd-wrt.com>
References: <20160718153046.GA26126@char.us.oracle.com>
	<D6EDEBF1F91015459DB866AC4EE162CC02414C7D@IRSMSX103.ger.corp.intel.com>
	<20160718161805.GA18050@char.us.oracle.com>
	<73189037-1a4e-915a-7120-112f2afe3342@dd-wrt.com>
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I see that linux-4.1.y is still at 5880876e9469 which has the serious
bug introduced by the backport c5ad33184354 "mm/swap.c: flush lru
pvecs on compound page arrival".

The analogous problem is also still affecting at least linux-3.18.y.

Is there some problem with reverting this patch in the stable
branches ?

Thanks,
Ian.