Re: [Xen-users] Xen 4.12/4.13 cannot boot Ubuntu-DomU with PVH and Kernel 4.15.0-50

[Jan Kellermann <jan.kellermann@xxxxxxxxx>]

Hi,

Ubuntu just released the kernel 4.15.0-58 for 18.04 and 16.04-HWE.
With this kernel you can boot xen guests as PVH again.

Best regards,
Kelly.

Am 16.05.2019 um 13:55 schrieb Jan Kellermann:
> Dear all,
> 
> for Ubuntu 16.04 exists no kernel 4.18 and the HWE-kernel (4.15.0-50)
> crashes also, so it is not possible to boot an Ubuntu 16.04 as PVH at
> this time.
> 
> We opened this bug-ticket:
> <https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe/+bug/1829378>
> If you are affected, please subscribe and mark "affects me" also. TU.
> 
> Best regards,
> Kelly.
> 
> Am 16.05.2019 um 13:18 schrieb Jan Kellermann:
>> Hi Juergen,
>>
>> thank you very much. Now we use kernel 4.18.0.20.70 from hwe-package and
>> all DomUs are booting fine.
>>
>> ky.
>>
>> Am 16.05.2019 um 08:13 schrieb Juergen Gross:
>>> On 15/05/2019 20:29, Jan Kellermann wrote:
>>>> Hi,
>>>>
>>>> we use xen from source and are not able to boot our Ubuntu-DomUs with
>>>> kernel 4.15.0-50 in PVH-Mode. In PV-Mode they start without problems.
>>>>
>>>> We activated logging, see the log attached.
>>>>
>>>> The boot stops at;
>>>> BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
>>>> [...]
>>>> Kernel panic - not syncing: Attempted to kill the idle task!
>>>>
>>>>
>>>> We use the current staging-version with last commit
>>>> 2a556b63a22dd68697feb3994e68de939d01a804 (before we tried staging-4.12
>>>> with last commit 4ed6c8b95c80a6fdc33fab38d3fdae64b8827916).
>>>>
>>>> Are you working on this issue? With staging the boot freezes, with
>>>> staging-4.12 the DomU crashed.
>>>> We tried with Dom0-Kernel-versions 4.15.0-50 and 4.15.0-48.
>>>
>>> You should ask the Ubuntu kernel team. The crash happens in a function
>>> not present in the upstream 4.15 stable tree. There seems to be an
>>> Ubuntu private kernel patch present causing the issue.
>>>
>>>
>>> Juergen
>>>
>>> _______________________________________________
>>> Xen-users mailing list
>>> Xen-users@xxxxxxxxxxxxxxxxxxxx
>>> https://lists.xenproject.org/mailman/listinfo/xen-users
>>>
>>
> 

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