KVM Sparse CPU bug?

[Luciano Mannucci]

Maybe it is a "top" problem... :)

If I issue a "top -P" while compiling some ports I get:

last pid: 93803;  load averages: 10.89,  4.46,  2.81    up 2+20:55:38  11:45:53
126 processes: 20 running, 103 sleeping, 1 zombie, 2 lock
CPU 0:  11.0% user,  0.0% nice, 76.4% system,  0.4% interrupt, 12.2% idle
CPU 1:   0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 2:   0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 3:   0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 4:   0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 5:   0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 6:   0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 7:   0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 8:   0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 9:   0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 10:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 11:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 12:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 13:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 14:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
CPU 15:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
Mem: 164M Active, 1526M Inact, 531M Wired, 191M Buf, 693M Free
Swap: 973M Total, 4920K Used, 968M Free

  PID USERNAME    THR PRI NICE   SIZE    RES STATE   C   TIME    WCPU COMMAND
92363 root          1  78    0   102M 99888K CPU32  32   0:02 100.44% cc1

All CPUs but one are reported idle!
Though the "Average load" is 10.86.

The machine speed seems quit good, so I don't know whether it is a "top"
bug or something wrong with the kernel.

Any ideas on how to do a further check?

Thanks again,

Luciano.
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