bin/160494: bsnmpd returns inaccurate data for hrSystemProcesses OID

Jeremy Chadwick freebsd at
Tue Sep 6 16:09:10 UTC 2011

On Tue, Sep 06, 2011 at 08:41:39AM -0300, Sylvio C?sar Teixeira Amorim wrote:
> Do a patch and send me.

I had a chance to review the net-snmp code.  My previous claim was
incorrect -- net-snmp DOES NOT suffer from the problem documented in
this PR.  The code in net-snmp which uses kvm_getprocs(3) is for the
hrSW*Run OIDs, which (properly) uses KERN_PROC_ALL to ensure they count
kernel threads for kernel modules.

The hrSystemProcesses OID with net-snmp returns the correct number of
system processes (not including threads).  Verification:

icarus# snmpwalk -v2c -c public localhost hrSystemProcesses
HOST-RESOURCES-MIB::hrSystemProcesses.0 = Gauge32: 60

So this PR/issue is specific to bsnmpd.  Sorry to waste your time,

The PR should remain open as bsnmpd needs to be fixed.

| Jeremy Chadwick                                jdc at |
| Parodius Networking              |
| UNIX Systems Administrator                   Mountain View, CA, US |
| Making life hard for others since 1977.               PGP 4BD6C0CB |

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