Michael Paquier <michael(at)paquier(dot)xyz> writes:
> Trying to run regression tests in parallel in ~9.5 leads to spurious
> failures, which is annoying... I had a patch fixing that but I cannot
> put my finger on the thread where this has been discussed.
Yeah, for me parallelized check-world only works in >= 9.6. My (vague)
recollection is that multiple fixes were needed to get to that point,
so I doubt it's worth trying to fix in older branches.
regards, tom lane