[TC][nova] Failing device detachments on Focal

Balázs Gibizer balazs.gibizer at est.tech
Fri Sep 18 11:01:07 UTC 2020



On Fri, Sep 18, 2020 at 12:20, Radosław Piliszek 
<radoslaw.piliszek at gmail.com> wrote:
> Is there a version of qemu that works on Focal that deployment
> projects could use now?

We use the train ubuntu cloud archive to get an unaffected qemu 
version, which is now 4.0

cheers,
gibi

> 
> -yoctozepto
> 
> On Fri, Sep 18, 2020 at 12:16 PM Balázs Gibizer 
> <balazs.gibizer at est.tech> wrote:
>> 
>>  Hi,
>> 
>>  I want to raise a potential conflict between the fact that OpenStack
>>  Victoria officially supports Ubuntu Focal[3] and a high severity
>>  regression in Nova [1] caused by a qemu bug [2] in the qemu version
>>  that is shipped with Focal.
>> 
>>  The Nova team documented[4] it as a limitation without a known
>>  workaround in Nova. Also as far as I know Canonical does not support
>>  downgrading the qemu version so I don't see a viable workaround on
>>  Focal side either.
>> 
>>  Is the Nova reno[4] enough from the TC perspective to go forward 
>> with
>>  the switch to Focal and with the Victoria release?
>> 
>>  cheers,
>>  gibi
>> 
>>  [1] https://bugs.launchpad.net/nova/+bug/1882521
>>  [2] https://bugs.launchpad.net/qemu/+bug/1894804
>>  [3] 
>> https://governance.openstack.org/tc/reference/runtimes/victoria.html
>>  [4] https://review.opendev.org/#/c/752654
>> 
>> 
>> 





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