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


  • To: xen-users@xxxxxxxxxxxxxxxxxxxx
  • From: Jan Kellermann <jan.kellermann@xxxxxxxxx>
  • Date: Thu, 16 May 2019 13:55:52 +0200
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  • Delivery-date: Thu, 16 May 2019 11:56:56 +0000
  • List-id: Xen user discussion <xen-users.lists.xenproject.org>
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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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