Hi all, 1st post :)
I installed ntop from ports on my Sun Ultra5 400MHz running FreeBSD
5.4RC3 and noticed the cpu would go to 100% and stay there (98% ntop
process and load average 1.0).
I could see traffic being analised throught the webpage but poking
around the page would caus e this to happen: ntop[86069]:
THREADMGMT: pcapDispatch thread terminated...
and of course, no more captured packets which ntop would report
correctly on the number of discarded packets by libpcap.
I already read about this in the mailing list archives but tried to
reproduce it on my laptop, a P4m 2.0GHz running FreeBSD 5.4RC4.
Since this cpu is somewhat faster I couldn't get the pcapDispatch
thread to terminate, but still got some packets discarded by libpcap
and yet 100% cpu usage, but this time still with load average at
almost 1.0 but the ntop process low although I see it's pushing for
the kernel.
top after about 5mins after starting ntop:
last pid: 61804; load averages: 0.95, 0.54, 0.60
up 0+03:27:52 06:40:50
30 processes: 2 running, 28 sleeping
CPU states: 12.0% user, 0.0% nice, 80.2% system, 7.8% interrupt, 0.0% idle
Mem: 47M Active, 111M Inact, 40M Wired, 68K Cache, 34M Buf, 40M Free
Swap: 400M Total, 400M Free
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
61801 nobody 123 0 47304K 33040K RUN 2:36 39.07% 39.06% ntop
Notice the 80% used by system.
I tried ntop 3.1 from ports on both systems and 3.1.1 from cvs today
on the laptop, both with the same results.
quoting Burton:
"However, I'm not all that comfortable changing the basic daemonizing logic
w/o a lot of testing - that's why we held off - it was too close to 3.0's
release on that change.
Maybe it is time to try this - but only if we can get people to commit to
trying the cvs. The results from the last few requests for help testing has
been resounding silence."
I'm willing to test anything you through at me, so please do :)
My thanks in advance,
Joao Barros
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