CPUs on top

[Jordi Prats <jprats@xxxxxxxx>]

Hi,
On a multiprocessor machine with an smp kernel if I use top it shows 
only one cpu:

Cpu(s):  2.4% us,  0.0% sy,  0.0% ni, 97.5% id,  0.1% wa,  0.0% hi,  0.0% si

What's causing this? /proc/cpuinfo is reporting more cpus than just 
one... Onyone could help me?

Thanks!
Jordi