I update rails from 2.0.2 to 2.2.3, and I start server by ruby script/server or mongrel_rails. But when I use my system, for test or view, the system often exit auto and report a failed to allocate memory error. I try to change the enviroment, then I found something. I have installed ramdisk on my computer, if I remove it, the rails seemed normal, but if I reinstall the ramdisk, it reoport error again and exit. The status is not always but often if I install ramdisk. It's bug or not?