postgres

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Andres Freund 43a8ed26c9 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: CAJjS0u2ai9ooUisKtkV8cuVUtEkMTsbK8c7juNAjv8K11zeCQg@mail.gmail.com
Backpatch: 9.5 where the private ref count infrastructure was introduced

2015-08-12 17:35:57 +02:00

buffer

Fix two off-by-one errors in bufmgr.c.

2015-08-12 17:35:57 +02:00

file

Remove special cases for ETXTBSY from new fsync'ing logic.

2015-05-29 15:11:36 -04:00

freespace

Update copyright for 2015

2015-01-06 11:43:47 -05:00

ipc

Fix attach-related race condition in shm_mq_send_bytes.