Andrew Dunstan <andrew.duns...@2ndquadrant.com> writes:
> Buildfarm member lorikeet is failing occasionally with a failed
> assertion during the select_parallel regression tests like this:
> 2017-06-03 05:12:37.382 EDT [59327d84.1160:38] LOG: statement: select
> count(*) from tenk1, tenk2 where tenk1.hundred > 1 and tenk2.thousand=0;
> TRAP: FailedAssertion("!(vmq->mq_sender == ((void *)0))", File:
> "/home/andrew/bf64/root/HEAD/pgsql.build/../pgsql/src/backend/storage/ipc/shm_mq.c",
> Line: 221)
> I'll see if I can find out why, but if anyone has any ideas why this might be
> happening (started about 3 weeks ago) that would be helpful.
Well, this seems like it has to indicate an incorrect call of
shm_mq_set_sender. I have no great insights as to what might be causing
that, but I sure find it to be pretty unacceptable coding practice that
the call sites are not checking for failure returns from shm_toc_lookup.
regards, tom lane
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