Andres Freund <andres@anarazel.de> writes:
> I'll see if being graphically logged in somehow indeed increased the repro
> rate, and if so I'll expand the debugging somewhat, or if this was just an
> absurd coincidence.
Hmm. Now that you mention it, the one repro on the M1 came just as
I was about to give up and manually cancel the script that was running
the 027 test in a loop. I wondered for a moment if I'd somehow
affected the state of the machine, but since I was logged in over ssh
I didn't quite see how that would be possible. But your tale makes me
suspect that outside activity helps --- which would square with
Alexander's results that suggest concurrent runs help.
regards, tom lane