Fix two off-by-one errors in bufmgr.c. In 4b4b680c I passed a buffer index number (starting from 0) instead of a proper Buffer id (which start from 1 for shared buffers) in two places.
This wasn't noticed so far as one of those locations isn't compiled at all (PrintPinnedBufs) and the other one (InvalidBuffer) requires a unlikely, but possible, set of circumstances to trigger a symptom. To reduce the likelihood of such incidents a bit also convert existing open coded mappings from buffer descriptors to buffer ids with BufferDescriptorGetBuffer(). Author: Qingqing Zhou Reported-By: Qingqing Zhou Discussion: cajjs0u2ai9oouisktkv8cuvutekmtsbk8c7junajv8k11ze...@mail.gmail.com Backpatch: 9.5 where the private ref count infrastructure was introduced Branch ------ REL9_5_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/43a8ed26c97e36d971b6018d1bc94ad5c52d169b Modified Files -------------- src/backend/storage/buffer/bufmgr.c | 36 ++++++++++++++++++----------------- 1 file changed, 19 insertions(+), 17 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
