bsnmpd daemon eating all cpu

Harti Brandt hartmut.brandt at
Tue Jan 22 08:25:15 PST 2008


On Tue, 22 Jan 2008, Bartosz Giza wrote:

BG>I am using dell poweredge sc440 router with one xeon dual core cpu.
BG>This is basicly only router for dummynet firewall dhcpd and named.
BG>I want to run bsnmpd daemon but when i start it it starts eating all cpu from 
BG>one core.
BG>I have run truss to check what it is doing and i have got huge amount of such 
BG>gettimeofday({1201008182.366354},0x0)            = 0 (0x0)
BG>I want to use this daemon because it is in base system but if i could not run 
BG>this daemon in normal way i will be forced to use net-snmpd port.
BG>I have basic config with hotres module added.
BG>I am running freebsd 7.0-prerelease.
BG>Alsa what is strange i have exactly the same machine with freebsd 
BG>7.0-prerelase but with only one network card for testing and bsnmpd behaves 
BG>Could some one help me with this. I can send dump from truss or even do some 
BG>more testing.

Could you please disable all modules? Just comment out all lines starting 
from the Load MIB-2 module line. What does it do then?

BG>Second strange thing is when i have compiled kernel with ULE scheduler bsnmpd 
BG>shoed me 100% cpu utilization on both cores for all time. And after 
BG>recompiling kernel with 4BSD it shows good numbers for cpu utilization.

I have a report about this and there it says that the reason is the 
kern.ccpu variable beeing 0 for ULE. Unfortunately I was not able to work 
on this because of RealJob. I should probably look into this.


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