On Tue, Dec 15, 2009 at 4:16 PM, Robert Haas <robertmh...@gmail.com> wrote: > I didn't know that, but it I think by the time malloc returns 0 > usually other bad things are happening. I don't think that's really > an answer.
Only if, as Craig said and you disputed, you have overcommit enabled or lots of swap. There is a problem though, if you have overcommit disabled you kind of need lots of swap to avoid running out of virtual memory long before you're actually short on physical memory. And it's true that Linux has had trouble dealing with low memory situations in the past few years, at least in my experience. But that's not true on all OSes and we can hope it won't be true for Linux forever too. -- greg -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs