Fix autovacuum work item error handling In autovacuum's "work item" processing, a few strings were allocated in the current transaction's memory context, which goes away during error handling; if an error happened during execution of the work item, the pfree() calls to clean up afterwards would try to release already-released memory, possibly leading to a crash. In branch master, this was already fixed by commit 335f3d04e4c8, so backpatch that to REL_10_STABLE to fix the problem there too.
As a secondary problem, verify that the autovacuum worker is connected to the right database for each work item; otherwise some items would be discarded by workers in other databases. Reported-by: Justin Pryzby Discussion: https://postgr.es/m/20171014035732.gb31...@telsasoft.com Branch ------ REL_10_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/52ca7572c3642ccbb46a619c03efe1928811ceae Modified Files -------------- src/backend/postmaster/autovacuum.c | 28 ++++++++++++++++++++-------- 1 file changed, 20 insertions(+), 8 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
