Issues with the first PowerPC updates for the kernel 6.1

[Christian Zigotzky]

> On 15. Oct 2022, at 11:51, Andrew Donnellan <ajd at linux.ibm.com> wrote:
> 
> On Thu, 2022-10-13 at 11:42 +0200, Christian Zigotzky wrote:
>> Hi Christophe,
>> 
>> Thanks a lot for your answer. OK, now, I know, that I don’t need to
>> test it. After the boot of the latest git kernel, my system was
>> extremely damaged. Some config files has a size of several gigabytes
>> for example the resolv.conf. I tried to repair this Debian system but
>> without any success.
>> I copied with dd and Netcat via network another rootfs from another
>> computer to the damaged partition.
>> I don’t have the time to do it always again and again after a bad
>> bisect result.
>> I will wait some weeks and try it again.
> 
> You're right, I was in a rush, saw a processor that wasn't IBM and
> assumed it was 32-bit without thinking too much!
> 
> 
> Andrew

Hi Andrew,

Thanks for your answer. Is it possible to fix it?

Thanks,
Christian

> 
> 
>> 
>> Cheers,
>> Christian
>> 
>>> On 13. Oct 2022, at 09:28, Christophe Leroy <
>>> christophe.leroy at csgroup.eu> wrote:
>>> 
>>> 
>>> 
>>>>> Le 13/10/2022 à 09:03, Christian Zigotzky a écrit :
>>>>> Hi Andrew,
>>>>> 
>>>>> Does this patch also affect 64-bit kernels?
>>>>> 
>>>>> We use often 32-bit userlands with 64-bit kernels.
>>> 
>>> As far as I understand, it was already correct for 32-bit userlands
>>> with 
>>> 64 bit kernels, aka compat.
>>> 
>>> The patch applies the same approach for 32 bit kernels, as
>>> explained in 
>>> the commit message : "Fix this by having 32-bit kernels share those
>>> syscall definitions with compat."
>>> 
>>> Christophe
>>> 
>>>> 
>>>> Cheers,
>>>> Christian
>>>> 
>>>>>> On 12. Oct 2022, at 09:56, Andrew Donnellan <
>>>>>> ajd at linux.ibm.com> wrote:
>>>>> 
>>>>> On Wed, 2022-10-12 at 08:51 +0200, Christian Zigotzky wrote:
>>>>>> Hi All,
>>>>>> 
>>>>>> I use the Nemo board with a PASemi PA6T CPU and have some
>>>>>> issues
>>>>>> since the first PowerPC updates for the kernel 6.1.
>>>>>> 
>>>>>> I successfully compiled the git kernel with the first PowerPC
>>>>>> updates
>>>>>> two days ago.
>>>>>> 
>>>>>> Unfortunately this kernel is really dangerous. Many things
>>>>>> for
>>>>>> example Network Manager and LightDM don't work anymore and
>>>>>> produced
>>>>>> several gigabyte of config files till the partition has been
>>>>>> filled.
>>>>>> 
>>>>>> I deleted some files like the resolv.conf that had a size
>>>>>> over 200
>>>>>> GB!
>>>>>> 
>>>>>> Unfortunately, MintPPC was still damaged. For example LightDM
>>>>>> doesn't
>>>>>> work anymore and the MATE desktop doesn't display any icons
>>>>>> anymore
>>>>>> because Caja wasn't able to reserve memory anymore.
>>>>>> 
>>>>>> In this case, bisecting isn't an option and I have to wait
>>>>>> some
>>>>>> weeks. It is really difficult to find the issue if the
>>>>>> userland will
>>>>>> damaged again and again.
>>>>> 
>>>>> Could you try with
>>>>> https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20221012035335.866440-1-npiggin@gmail.com/
>>>>> to see if your issues are related to that?
>>>>> 
>>>>> Andrew
>>>>> 
>>>>> -- 
>>>>> Andrew Donnellan    OzLabs, ADL Canberra
>>>>> ajd at linux.ibm.com   IBM Australia Limited
>>>>> 
>> 
> 
> -- 
> Andrew Donnellan    OzLabs, ADL Canberra
> ajd at linux.ibm.com   IBM Australia Limited
>