title: How do I limit RAM to test low memory situations?
body: <p>I'm trying to reproduce a bug that seems to appear when a user is using up a bunch of RAM.  What's the best way to either limit the available RAM the computer can use, or fill most of it up?  I'd prefer to do this without physically removing memory and without running a bunch of arbitrary, memory-intensive programs (ie, Photoshop, Quake, etc).</p>