MirrorX <mirrorx(at)gmail(dot)com> writes:
> the last few days i have observed tons of msgs like the above on a db server
> of ours. i have searched a lot on the internet but didn't find much relevant
> information.
> the server is 8.4.7.
These are almost certainly not something to worry about. See this 8.4.8
patch:
http://git.postgresql.org/gitweb/?p=postgresql.git&a=commitdiff&h=994940f2fb2678b89b4897d6cd7e0bfd67c07859
If you still see it after updating to 8.4.8, we'd like to know, though.
regards, tom lane