Larry Rosenman <ler@lerctr.org> writes:
> My Buildfarm animal (peripatus) has been failing check since yesterday.
> Can someone look at it?
It's been doing this in parallel queries, in v11 and up:
2019-09-29 19:00:15.534 CDT [49513:1] ERROR: could not open shared memory segment "/PostgreSQL.1225945786": Permission
denied
2019-09-29 19:00:15.535 CDT [48596:491] pg_regress/partition_prune ERROR: parallel worker failed to initialize
2019-09-29 19:00:15.535 CDT [48596:492] pg_regress/partition_prune HINT: More details may be available in the server
log.
2019-09-29 19:00:15.535 CDT [48596:493] pg_regress/partition_prune CONTEXT: PL/pgSQL function
explain_parallel_append(text)line 5 at FOR over EXECUTE statement
2019-09-29 19:00:15.535 CDT [48596:494] pg_regress/partition_prune STATEMENT: select explain_parallel_append('select
avg(ab.a)from ab inner join lprt_a a on ab.a = a.a where a.a in(1, 0, 0)');
2019-09-29 19:00:15.535 CDT [48596:495] pg_regress/partition_prune WARNING: could not remove shared memory segment
"/PostgreSQL.1225945786":Permission denied
which looks like an external problem to me --- certainly, nothing
we changed yesterday would explain it. Did you change anything
about the system configuration, or do a software update?
regards, tom lane