linux-kernel - Re: LTP hugemmap05 test case failure on arm64 with linux-next (next-20190613)

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Date:   Mon, 17 Jun 2019 07:02:02 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     Qian Cai <cai@....pw>, Will Deacon <will.deacon@....com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: LTP hugemmap05 test case failure on arm64 with linux-next
 (next-20190613)

Hello Qian,

On 06/14/2019 05:45 PM, Qian Cai wrote:
> On Fri, 2019-06-14 at 11:20 +0100, Will Deacon wrote:
>> Hi Qian,
>>
>> On Thu, Jun 13, 2019 at 05:34:01PM -0400, Qian Cai wrote:
>>> LTP hugemmap05 test case [1] could not exit itself properly and then degrade
>>> the
>>> system performance on arm64 with linux-next (next-20190613). The bisection
>>> so
>>> far indicates,
>>>
>>> BAD:  30bafbc357f1 Merge remote-tracking branch 'arm64/for-next/core'
>>> GOOD: 0c3d124a3043 Merge remote-tracking branch 'arm64-fixes/for-next/fixes'
>>
>> Did you finish the bisection in the end? Also, what config are you using
>> (you usually have something fairly esoteric ;)?
> 
> No, it is still running.
> 
> https://raw.githubusercontent.com/cailca/linux-mm/master/arm64.config
> 

Were you able to bisect the problem till a particular commit ?

- Anshuman