[CentOS-virt] Crash in CentOS 7 kernel-3.10.0-514.16.1.el7.x86_64 in Xen PV mode

Karl Johnson karljohnson.it at gmail.com
Tue Oct 24 19:09:20 UTC 2017


On Tue, Oct 24, 2017 at 3:36 AM, Akemi Yagi <amyagi at gmail.com> wrote:

> On Mon, Oct 23, 2017 at 11:08 PM, Akemi Yagi <amyagi at gmail.com> wrote:
>
>> On Mon, Oct 23, 2017 at 12:57 PM, Karl Johnson <karljohnson.it at gmail.com>
>> wrote:
>>
>>> On Sat, May 20, 2017 at 8:30 PM, Sarah Newman <srn at prgmr.com> wrote:
>>>
>>>> I experienced a bug that is likely the same as
>>>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1350373 . Commit
>>>> b7dd0e350e0bd4c0fddcc9b8958342700b00b168 , which is supposed to fix
>>>> it, doesn't appear in this kernel and doesn't apply cleanly either.
>>>> Is there any point in trying to backport the patch?
>>>>
>>>> I had the same kernel panic while booting a PV domU on
>>> 3.10.0-693.2.2.el7.centos.plus.x86_64. I had to start the domU again to
>>> boot correctly. Can this patch be added to the CentOS 7 kernel-plus?
>>>
>>> Karl
>>>
>>
>> ​I can certainly add the patch (commit b7dd0e350e0bd4c0fddcc9b8958342700b00b168)
>> to the Plus kernel.​ It would be best if you could file a request on
>> http://bugs.centos.org so that we can track it better.
>>
>> Akemi
>>
>
> ​A CentOSPlus kernel ​set with the referenced patch applied is available
> for testing at:
>
> https://people.centos.org/toracat/kernel/7/plus/xen/
>
> Feedback appreciated,
>
> Akemi
>

Thanks for the build Akemi. I will try to test this kernel in the next days
however it will be hard to know if it fix the kernel panic because I can't
reproduce it. It's seems to be random and pretty rare in my case.
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