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Subjecttop displaying 50% si time and 50% idle on idle machine
Hi,

Kernel 2.6.17.11 with tg3 network driver, NAPI enabled (Distro CentOS 4.4).
top shows strangely 50% idle even if the machine is _completely_ idle.

top - 01:04:30 up 4 days, 12:05, 2 users, load average: 0.00, 0.00, 0.00
Tasks: 34 total, 2 running, 32 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0% us, 0.0% sy, 0.0% ni, 50.0% id, 0.0% wa, 0.0% hi, 50.0% si
Mem: 3634452k total, 313284k used, 3321168k free, 71308k buffers
Swap: 505896k total, 0k used, 505896k free, 220272k cached

I find this pretty alarming - can somebody please enlighten me?
Please include me on CC.
Thanks,
M.


/proc/stat:

cpu 9328 0 1749 19452596 2072 0 19466317 0
cpu0 9328 0 1749 19452596 2072 0 19466317 0
intr 39311864 38932062 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
58911 320891 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ctxt 1748303
btime 1157367528
processes 15115
procs_running 1
procs_blocked 0
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