Re: Linux 4.14 - BUG: unable to handle kernel paging request at ffffffff3bbbe160 IP: audit_signal_cb+0x75/0xf0

From: John Johansen
Date: Mon Nov 27 2017 - 13:09:20 EST


On 11/21/2017 04:28 PM, Shuah Khan wrote:
> On 11/21/2017 04:53 PM, John Johansen wrote:
>> On 11/21/2017 10:02 AM, Shuah Khan wrote:
>>> On 11/21/2017 10:44 AM, John Johansen wrote:
>>>> On 11/21/2017 08:58 AM, Shuah Khan wrote:
>>>>> Hi John,
>>>>>
>>>>> I am seeing the following on my laptop. Unfortunately this is my primary
>>>>> system and my ability to bisect might be a bit limited. The system is
>>>>> running
>>>>>
>>>>> 4.14.0+ #4 SMP Tue Nov 14 19:25:58 MST 2017 x86_64 x86_64 x86_64 GNU/Linux
>>>>>
>>>>> on Ubuntu 17.10 base.
>>>>>
>>>>> Is this a known issue? Please see the dmesg excerpts below:
>>>>>
>>>> Its not. I'll start looking into it today
>>>>
>>>> Do you have any other information that you can send to me?
>>>>
>>>> Any particular task/work load that triggers this?
>>>> Can you tar up your /etc/apparmor.d/ and send that to me?
>>>>
>>>>
>>>
>>> Yeah. I forgot mention that detail :)
>>>
>> So my first attempts to replicate have failed.
>>
>> Can you confirm the sha of your kernel build? If its has some none upstream patches can you provide the sha your kernel is based on.
>>
>> My testing so far were based on bebc6082da0a9f5d47a1ea2edc099bf671058bd4
>>
>>
>> Can you also send me your kernel config so I can better replicate your build
>>
>
> commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 (tag: v4.14)
> Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> Date: Sun Nov 12 10:46:13 2017 -0800
>
> Linux 4.14
>
> The above is the top commit in my tree. Config attached.
>

thanks Shuah,

find below the latest revision of the patch. Nothing has changed code
wise but I have added Tested-by: entries for the 3 people of have
tested it and reported it working for them, and also added Cc: stable
entry.

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