Re: GIN, XLogInsert and MarkBufferDirty

Heikki Linnakangas <heikki@enterprisedb.com> writes:
> ... MarkBufferDirty needs to be called 
> before XLogInsert to avoid a race condition in checkpoint, see comments 
> in SyncOneBuffer in bufmgr.c for an explanation.

Right, see also the "Write-Ahead Log coding" section in
src/backend/access/transam/README (which is maybe not a very good place
for it, but it doesn't seem like bufmgr's turf either).
        regards, tom lane