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@pllim, @neutrinoceros - going back to ubuntu-22.04 on the host seems to have solve the exotic arch problems, perhaps because it has an older qemu or so (the various issues confused me).

Anyway, I think perhaps we should just go with this for now...

Sometimes the best solution is the simplest. Thanks!

In applying backport label, the tests rerunning. Sorry about that. I can check tomorrow at work tomorrow and merge if they still pass, unless someone beats me to it.