linux-kernel - Re: [lkp] [x86/acpi] dc6db24d24: BUG: unable to handle kernel paging request at 0000116007090008

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Date:   Mon, 13 Feb 2017 16:06:38 +0800
From:   Dou Liyang <douly.fnst@...fujitsu.com>
To:     Ye Xiaolong <xiaolong.ye@...el.com>
CC:     <guzheng1@...wei.com>, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        "Li, Philip" <philip.li@...el.com>, <lkp@...org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [lkp] [x86/acpi] dc6db24d24: BUG: unable to handle kernel paging
 request at 0000116007090008

Hi Xiaolong

[...]
>>>
>>> Sorry for my neglect, the result for fd74da217df7d4bd25e95411da showed no dmesg
>>> because it's incomplete run and has no demsg stat at all.
>>
>> Is that means:
>>
>> you have already tested the Linux branch which contains the commit
>> fd74da217df7d. and it doesn't work well.
>>
>> Btw, Why the test is incomplete run ?
>
> Yes, We've got plenty test results for kernel that contains fd74da217df7d such as v4.9,
> v4.10-rc1, v4.10-rc2...., they all have the same dmesg errors.

Understood! :)

> For the incomplete run, it may happen sometimes due to kernel panic during boot time and
> 0day failed to capture its dmesg stat.
>
>>
>>> The bug still persists in v4.9, v4.10-rcx, the lastest kernel head,
>>
>> If the dmesg and stat of the test is NULL, How do you prove that the
>> bug still exists?
>
> This "dmesg stat is empty" refer to test for kernel image which head commit is fd74da217df7d,
> not for all test results.
>
>>
>>> could you help to check?
>>>
>>
>> Yes, I think we first should make the test with commit fd74da217df7d
>> work in the specific test machine.
>>
>> test machine: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz
>> with 128G memory
>>
>> Am I right? waiting your response.
>
> Yes, currently we just found this issue on a specific machine, and I've queued the
> same jobs to other machines to see whether they have the same issue.
>

I will investigate it.


[...]

Thanks,
Liyang.