Re: Xen 4.10 breakage with buster (was Re: [xen-4.10-testing test] 151033: regressions - trouble: blocked/fail/pass/starved) [and 1 more messages]

[Jan Beulich <jbeulich@xxxxxxxx>]

On 15.06.2020 16:08, Ian Jackson wrote:
> Jan Beulich writes ("Re: Xen 4.10 breakage with buster (was Re: 
> [xen-4.10-testing test] 151033: regressions - trouble: 
> blocked/fail/pass/starved) [and 1 more messages]"):
>> On 15.06.2020 15:44, Ian Jackson wrote:
>>> Thanks to both for your opinions.  I have pushed those two to 4.10 and
>>> will see how things go.  I may send them to 4.9 too.
>>
>> Won't 4.10 continue to be blocked then because or -prev issues?
> 
> There are multiple issues.  My hope is to get rid of all of them...
> 
> Eventually I think we will have to force push 4.9 because its prev
> builds will fail and  won't want to update 4.8.

Right - which will then enable 4.10's -prev build to work, which
will in turn allow 4.11's -prev builds to work, and then the same
for 4.12. I.e. osstest will continue to be quite busy for the
next several days.

Instead of building -prev anew each time, wouldn't it make sense
to store and re-use the most recent "prev" tree's build? This
ought to avoid this sort of cascade dependencies in particular
when upgrading the test platform underneath. There's no reason
to fail a flight just because the N-1 tree doesn't build anymore.

Jan