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Re: [Xen-devel] [PATCH RFC OSSTEST 10/19] make-flight: Run a basic test on each arm platform

On Fri, 2014-10-10 at 15:20 +0100, Ian Jackson wrote:
> Ian Campbell writes ("[PATCH RFC OSSTEST 10/19] make-flight: Run a basic test 
> on each arm platform"):
> > Unlike x86 there is enough variation in the ARM platforms that it is
> > worth having a basic test on each as part of a standard run. This
> > relies on each host having an appropriate equiv-$platform host flag.
> I think using equiv-* for this is not correct.
> Hosts named equiv-* are supposed to be completely identical, but we
> might end up with hosts which are similar enough that they qualify for
> this cross-architecture testing, and but not completely identical.
> Furthermore, using equiv-* makes it difficult to automatically search
> for a list of the different board classes we would want to use.
> I would invent a new prefix.  Perhaps flags like
>   platform-midway
> etc.

Would I have to add some code somewhere to process this? (I'm often
surprised to find that these just work via some generic magic, e.g. the
buildjob stuff etc, but I don't think so in this case?)

Perhaps in ts-hosts-allocate-Executive alongside the equiv handling?

> Then you could search the database
>   SELECT UNIQUE platform
>      SUCHTHAT (host,"arch-$arch") in hostflags
>           AND (host,"blessed-$whatever") in hostflags
>           etc.
> rather than hardcoding the list in make-flight.

I think this wouldn't work for standalone mode, would it?

> > Currently the existing arm midway boxes are "equiv-marilith", this
> > turns out to be a bad choice at least for this purpose, since
> > marilith is the host name, not the platform, we should either switch
> > to or add equiv-midway. ISTR discussing this at the time and picking
> > equiv-marilith pretty much arbitrarily, AFAIK nothing is using it
> > explicitly today so I think removing and adding equiv-midway is the
> > right choice.
> See above.  `equiv-marilith' would be correct if we had another
> identical Calxeda box.

Given "marilith" is the host name and not any sort of name which would
identify "similar" machines -- really?

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