I've retested it. If I gave the c1.xlarge instance 2048 MB or more Ram it will not start up. It stays pending and then terminats. If i gave that insance 2040 or lower Ram it starts. What is the problem? Sometimes we need Maschines with a large amount of Ram.
Hello,
I assume this not an ECC problem: is that right?
Unless you are using a 32bit or very old distro (both may have issue with the magic 2GB mark) I'm not sure what that can be: can you tell us more about your installation, hardware and distribution?
cheers
graziano