Don't use bgw_main even to specify in-core bgworker entrypoints. On EXEC_BACKEND builds, this can fail if ASLR is in use.
Backpatch to 9.5. On master, completely remove the bgw_main field completely, since there is no situation in which it is safe for an EXEC_BACKEND build. On 9.6 and 9.5, leave the field intact to avoid breaking things for third-party code that doesn't care about working under EXEC_BACKEND. Prior to 9.5, there are no in-core bgworker entrypoints. Petr Jelinek, reviewed by me. Discussion: http://postgr.es/m/09d8ad33-4287-a09b-a77f-77f8761ad...@2ndquadrant.com Branch ------ REL9_5_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/0ef26bb394abedb2745bd838c26ecb3131682bda Modified Files -------------- src/backend/access/transam/parallel.c | 7 +-- src/backend/postmaster/bgworker.c | 76 ++++++++++++++++++++++++++------ src/include/access/parallel.h | 2 + src/test/modules/worker_spi/worker_spi.c | 6 ++- 4 files changed, 73 insertions(+), 18 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers