cpu usage

[urgrue <urgrue@xxxxxxxxx>]

i have a server that continuously maxes out its cpu, and id like to try 
and pinpoint what is causing it.
the problem is, top shows for example:
CPU states:  0.7% user,  97.3% system,  0.0% nice, 0.0% idle

system is, presumably, kernel and kernel modules. but can i get any 
more detailed info about this kernel resource usage somehow?

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