Thomas Munro <thomas.mu...@gmail.com> writes: > There have been five failures on three animals like this, over the > past couple of months:
Also worth noting is that anole failed its first try at the new deadlock-parallel isolation test: https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=anole&dt=2019-08-01%2015%3A48%3A16 What that looks like is the queries got stuck and eventually isolationtester gave up and canceled the test. So I'm suspicious that there's a second bug in the parallel deadlock detection code. Possibly relevant factoids: all three of the animals in question run HEAD with force_parallel_mode = regress, and there's reason to think that their timing behavior could be different from other animals (anole and gharial run on HPUX, while hyrax uses CLOBBER_CACHE_ALWAYS). regards, tom lane