ppc: hard lockup / hang in v5.17-rc1 under QEMU

[Nicholas Piggin]

Excerpts from Miguel Ojeda's message of January 27, 2022 4:57 am:
> On Wed, Jan 26, 2022 at 4:03 PM Cédric Le Goater <clg at kaod.org> wrote:
>>
>> Indeed. I could reproduce.
> 
> Thanks for the quick confirmation!
> 
>> Could you please send the QEMU command line and the full dmesg ? and
>> possibly open an issue on :
>>
>>    https://gitlab.com/qemu-project/qemu/-/issues/
>>
>> I guess it's a QEMU modeling issue.
> 
> Of course -- done (details there):
> 
>     https://gitlab.com/qemu-project/qemu/-/issues/842

That sounds like my fault actually.

https://lists.ozlabs.org/pipermail/linuxppc-dev/2022-January/239178.html

Thanks,
Nick