On Fri, May 05, 2006 at 09:57:58AM -0400, mcelroy, tim wrote:
Are you saying the kernel's disc cache may be getting whacked? No, I understand that PG should use as much memory as it can and the system as well. The main problem here is that with almost all the 8GB of RAM 'in use' when I try to do a pg_dump or vacuumdb I run out of memory and the system crashes....
You need to be way more specific about what "in use" means. Try pasting the output of actual commands like "free". The main problem here according to the output you sent is that your process is trying to allocate 10billion terabytes of RAM (which ain't gonna work) and dies. That is not a memory issue.
Mike Stone