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Subject: Re: [PATCH] mm/page_alloc: prevent merging between isolated and other
 pageblocks
To: Hanjun Guo <guohanjun@huawei.com>,
        Andrew Morton <akpm@linux-foundation.org>
References: <1458726023-27005-1-git-send-email-vbabka@suse.cz>
 <56F2803E.70100@huawei.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        Leizhen <thunder.leizhen@huawei.com>,
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        Lucas Stach <l.stach@pengutronix.de>,
        "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>,
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        Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
        Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
From: Vlastimil Babka <vbabka@suse.cz>
Message-ID: <56F28E35.1080107@suse.cz>
Date: Wed, 23 Mar 2016 13:38:13 +0100
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On 03/23/2016 12:38 PM, Hanjun Guo wrote:
> On 2016/3/23 17:40, Vlastimil Babka 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>
>
> With the same stress test case (alloc/free cma) running for more than
> one hour, the bug I reported is gone.
>
> Tested-by: Hanjun Guo <guohanjun@huawei.com>

I wanted to add that, but forgot. Thanks!
I also forgot to transfer:

Acked-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>

> Thanks for debugging!
> Hanjun
>