Not sure if you noticed, but piculet has twice failed the 007_standby_source.pl test that was added by 9c4f5192f:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=piculet&dt=2020-11-15%2006%3A00%3A11 https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=piculet&dt=2020-11-13%2011%3A20%3A10 and francolin failed once: https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=francolin&dt=2020-11-12%2018%3A57%3A33 These failures look the same: # Failed test 'table content after rewind and insert: query result matches' # at t/007_standby_source.pl line 160. # got: 'in A # in A, before promotion # in A, after C was promoted # ' # expected: 'in A # in A, before promotion # in A, after C was promoted # in A, after rewind # ' # Looks like you failed 1 test of 3. [11:27:01] t/007_standby_source.pl ... Dubious, test returned 1 (wstat 256, 0x100) Failed 1/3 subtests Now, I'm not sure what to make of that, but I can't help noticing that piculet uses --disable-atomics while francolin uses --disable-spinlocks. That leads the mind towards some kind of low-level synchronization bug ... regards, tom lane
