Tue, 16 Nov 2010 16:28:10 +0000 письмо от Dave Shield 
<[email protected]>:

>     [ First - *please* don't mail me privately, without copying
> any responses to the mailing list.  I don't have the time
> or inclination to offer private, unpaid, SNMP consultancy.
> Keep discussions to the list, where others can both learn
> and offer advice.  Thanks.   ]

Sorry for the trouble.

> 
> We probably need a bit more information about exactly what is happening here.
> 
> Can you please try running the agent using the flags
> 
> -D snmp_agent,agentx
> 
> and issue a single GETNEXT request, that will trigger the problem.
> What debugging output does the agent report?
> 
> Dave
Execute:
snmpgetnext -c public -v 2c localhost stcTestTable1

Result: 
Error in packet.
Reason: (genError) A general failure occured
Failed object: PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestCpu3.100

Debug:
2010-11-17 10:50:50 snmp_agent: agent_sesion 00BD6A48 created
2010-11-17 10:50:50 agentx/master: handle pdu (req=0x7,trans=0x0,sess=0x7)
2010-11-17 10:50:50 agentx/master: send response, stat 0 
(req=0x7,trans=0x0,sess=0x7)
2010-11-17 10:50:50 agentx_build: packet built okay
2010-11-17 10:50:50 snmp_agent: agent_session 00BD6A48 released
2010-11-17 10:50:51 snmp_agent: agent_sesion 00BD6A48 created
2010-11-17 10:50:51 snmp_agent: add_vb_to_cache(00BD6A48, 1, 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable1, 00C3FAA0)
2010-11-17 10:50:51 snmp_agent: tp->start 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable1, tp->end 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable2,
2010-11-17 10:50:51 agentx/master: agentx master handler starting, mode = 0xa1
2010-11-17 10:50:51 agentx/master: request for variable 
(PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable1)
2010-11-17 10:50:51 agentx/master: EXCLUSIVE varbind 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable1 scoped to 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable2
2010-11-17 10:50:51 agentx: sending pdu (req=0x6,trans=0x5,sess=0x7)
2010-11-17 10:50:51 agentx_build: packet built okay
2010-11-17 10:50:51 snmp_agent: delegate session == 00BD6A48
2010-11-17 10:50:51 snmp_agent: end of handle_snmp_packet, asp = 00BD6A480) 
request_id: 6, message_id: 12310
2010-11-17 10:50:51 agentx/master: got response errstat=5, 
(req=0x6,trans=0x5,sess=0x7)Error
2010-11-17 10:50:51 agentx/master: agentx_got_response() error branch
2010-11-17 10:50:51 agentx/master: end error branch
2010-11-17 10:50:51 snmp_agent: processing delegated request, asp = 00BD6A48
2010-11-17 10:50:51 snmp_agent: add_vb_to_cache(00BD6A48, 1, 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable1, 00C4F158)
2010-11-17 10:50:51 snmp_agent: tp->start 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable2, tp->end 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable3,
2010-11-17 10:50:51 agentx/master: agentx master handler starting, mode = 0xa1
2010-11-17 10:50:51 agentx/master: request for variable 
(PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable1)
2010-11-17 10:50:51 agentx/master: inexact request preceeding region 
(PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable2)
2010-11-17 10:50:51 agentx/master: INCLUSIVE varbind 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable2 scoped to 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable3
2010-11-17 10:50:51 agentx: sending pdu (req=0x7,trans=0x5,sess=0x7)
2010-11-17 10:50:51 agentx_build: packet built okay0) request_id: 7, 
message_id: 12311
2010-11-17 10:50:51 agentx/master: got response errstat=5, 
(req=0x7,trans=0x5,sess=0x7)Error
2010-11-17 10:50:51 agentx/master: agentx_got_response() error branch
2010-11-17 10:50:51 agentx/master: end error branch
2010-11-17 10:50:51 snmp_agent: processing delegated request, asp = 00BD6A48
2010-11-17 10:50:51 snmp_agent: add_vb_to_cache(00BD6A48, 1, 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable1, 00C4F7F8)
2010-11-17 10:50:51 snmp_agent: tp->start 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable3, tp->end 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::snmpIntSysmonSystems.5,
2010-11-17 10:50:51 agentx/master: agentx master handler starting, mode = 0xa1
2010-11-17 10:50:51 agentx/master: request for variable 
(PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable1)
2010-11-17 10:50:51 agentx/master: inexact request preceeding region 
(PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable3)
2010-11-17 10:50:51 agentx/master: INCLUSIVE varbind 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable3 scoped to 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::snmpIntSysmonSystems.5
2010-11-17 10:50:51 agentx: sending pdu (req=0x8,trans=0x5,sess=0x7)
2010-11-17 10:50:51 agentx_build: packet built okay0) request_id: 8, 
message_id: 12312
2010-11-17 10:50:51 agentx/master: got response errstat=0, 
(req=0x8,trans=0x5,sess=0x7)
2010-11-17 10:50:51 agentx/master: agentx_got_response() beginning...
2010-11-17 10:50:51 agentx/master:   handle_agentx_response: processing: 
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestCpu3.100
2010-11-17 10:50:51 agentx/master: handle_agentx_response() finishing...
2010-11-17 10:50:51 snmp_agent: processing delegated request, asp = 
00BD6A48Send len: 48
2010-11-17 10:50:51 snmp_agent: REMOVE session == 00BD6A48
2010-11-17 10:50:51 snmp_agent: agent_session 00BD6A48 released
2010-11-17 10:50:52 snmp_agent: agent_sesion 00BD6A48 created
2010-11-17 10:50:52 agentx/master: handle pdu (req=0x0,trans=0x0,sess=0x7)

Note:
tested for production application, where
PETER-SERVICE-SNMP-INT-SYSMON-MIB::snmpIntSysmonSystems equal some_oid.3.1;
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable1 equal some_oid.3.2;
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable2 equal some_oid.3.3;
PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable3 equal some_oid.3.4;
stcTestCpu3 - it is column of PETER-SERVICE-SNMP-INT-SYSMON-MIB::stcTestTable3 
table

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