Be more wary about partially-valid LOCALLOCK data in RemoveLocalLock(). RemoveLocalLock() must consider the possibility that LockAcquireExtended() failed to palloc the initial space for a locallock's lockOwners array. I had evidently meant to cope with this hazard when the code was originally written (commit 1785acebf2ed14fd66955e2d9a55d77a025f418d), but missed that the pfree needed to be protected with an if-test. Just to make sure things are left in a clean state, reset numLockOwners as well.
Per low-memory testing by Andreas Seltenreich. Back-patch to all supported branches. Branch ------ REL9_2_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/ac0c71228fe7e44d9eba130df9bbbb5c2bfa9faa Modified Files -------------- src/backend/storage/lmgr/lock.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
