[TC][nova] Failing device detachments on Focal

Ghanshyam Mann gmann at ghanshyammann.com
Fri Sep 18 15:34:32 UTC 2020


 ---- On Fri, 18 Sep 2020 05:08:22 -0500 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?

IMO, that is what we can do in this situation. Also, we are going to keep running one job
on Bionic so that we do cover the volume detach feature test coverage somewhere. And once
qemu bug is fixed we can remove this limitation in W cycle.

-gmann

 > 
 > 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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