random tests failing on s390x

[Poul-Henning Kamp]

I spent time on s390x over summer.

It transpired that our s390x VM was so old that it predated their
"self-service" facilities, and therefore probably got overlooked
or sidelined in some ways.

After I recreated the VM with the "self-service" facility, we clearly
got more resources and it works a LOT better than the old VM.

It's still not on par with the rest, but the noise level is now something
we can live with:

	https://vinyl-cache.org/vtest/

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.