OK, that kills the theory that the leak is triggered by subprocess exit.
Another thing that would be worth trying is to just stop and start the
postmaster a large number of times, to see if the leak occurs at
postmaster exit.
It is not from the exit. I see the exact same problem and I never
restart postgres and it never crashes. It runs constanty and with no
crashes for 20-30 days until the box is out of memory and I have to
reboot.
> R2: After having a look at the linux kernel mailing list, it seems that
> this problem is not yet known there.
It is possible that it has already been fixed. I am seeing this memory
leak quite clearly on 2.6.12.6, but there's no evidence of it at all
on 2.6.16.27. The changelogs between those two versions show a lot of
bugfixes for memory leaks.
Also, that message from Will Glenn references a discussion where
someone else running 2.6.12 was having a memory leak issue.
---------------------------(end of broadcast)---------------------------
TIP 4: Have you searched our list archives?
http://archives.postgresql.org
