PID for ksoftireqd_CPU0 and friends
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Hello world,
Out of curiosity more than anything else, I ran chkrootkit (0.42 from
unstable) on my laptop. It comes back clean (though I recognize that
that's not definitive), except for a warning about LKM because there
are 4 processes hidden from the ps command.
I did a little digging and, following some advice that I googled, I
compared the PIDs in /proc with the PIDs from the PS command.
It turns out, AFAICT, that the only discrepancy is that processes
4, 5, 6, and 7 are missing from the PS command. Those, according to
/proc are ksoftirqd_CPU0, kswapd, bdflush, and kupdated.
And I can see why they don't compare properly, because the PS output
reports them all as PID 0.
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 1484 444 ? S Dec03 0:03 init
root 2 0.0 0.0 0 0 ? SW Dec03 0:01 [keventd]
root 3 0.0 0.0 0 0 ? SW Dec03 0:00 [kapmd]
root 0 0.0 0.0 0 0 ? SWN Dec03 0:00 [ksoftirqd_CPU0]
root 0 0.0 0.0 0 0 ? SW Dec03 0:16 [kswapd]
root 0 0.0 0.0 0 0 ? SW Dec03 0:00 [bdflush]
root 0 0.0 0.0 0 0 ? SW Dec03 0:00 [kupdated]
root 59 0.0 0.0 0 0 ? SW Dec03 0:00 [khubd]
Is this normal?
Be seeing you,
norm
- --
Norman Walsh <ndw@nwalsh.com> | Individuality seems to be Nature's
http://nwalsh.com/ | whole aim--and she cares nothing for
| individuals.-- Goethe
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