Subject: Re: Suspicious error for CMA stress test
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
References: <56E2FB5C.1040602@suse.cz>
 <20160314064925.GA27587@js1304-P5Q-DELUXE> <56E662E8.700@suse.cz>
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Cc: Hanjun Guo <guohanjun@huawei.com>,
        "Leizhen (ThunderTown)" <thunder.leizhen@huawei.com>,
        Laura Abbott <labbott@redhat.com>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Sasha Levin <sasha.levin@oracle.com>,
        Laura Abbott <lauraa@codeaurora.org>, qiuxishi <qiuxishi@huawei.com>,
        Catalin Marinas <Catalin.Marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>, Arnd Bergmann <arnd@arndb.de>,
        dingtinahong <dingtianhong@huawei.com>, chenjie6@huawei.com,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        Lucas Stach <l.stach@pengutronix.de>
From: Vlastimil Babka <vbabka@suse.cz>
Message-ID: <56F25343.8010100@suse.cz>
Date: Wed, 23 Mar 2016 09:26:43 +0100
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On 03/23/2016 05:44 AM, Joonsoo Kim wrote:
>>
>> Fixes: 3c605096d315 ("mm/page_alloc: restrict max order of merging on isolated pageblock")
>> Link: https://lkml.org/lkml/2016/3/2/280
>> Reported-by: Hanjun Guo <guohanjun@huawei.com>
>> Debugged-by: Laura Abbott <labbott@redhat.com>
>> Debugged-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
>> Cc: <stable@vger.kernel.org> # 3.18+
>> ---
>>   mm/page_alloc.c | 46 +++++++++++++++++++++++++++++++++-------------
>>   1 file changed, 33 insertions(+), 13 deletions(-)
>
> Acked-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>
> Thanks for taking care of this issue!.

Thanks for the review. But I'm now not sure whether we push this to 
mainline+stable now, and later replace with Lucas' approach, or whether 
that approach would be also suitable and non-disruptive enough for stable?