RE: query to dsx1Intervaltable always kills the subagent

Just to make it clear
I am inserting the row into the container at the end of the for loop below.
And the complete back trace from the core file 

#0  dsx1IntervalTable_Extract_Row (rowreq_ctx=0x18b3518) at dsx1IntervalTable_custom.cpp:115
115             long ds1Index = rowreq_ctx->tbl_idx.dsx1IntervalIndex - 1;
(gdb) where
#0  dsx1IntervalTable_Extract_Row (rowreq_ctx=0x18b3518) at dsx1IntervalTable_custom.cpp:115
#1  0x00044cdc in dsx1IntervalTable_row_prep (rowreq_ctx=0x18b3518) at autogen/dsx1IntervalTable_data_access.c:272
#2  0x0004663c in _mfd_dsx1IntervalTable_object_lookup (handler=0x187da10, reginfo=0x187da48, agtreq_info=0x1893350, requests=0x18aedb0) at autogen/dsx1IntervalTable_interface.c:577
#3  0x40045de4 in _baby_steps_access_multiplexer (handler=0x187da10, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at baby_steps.c:460
#4  0x400252a8 in netsnmp_call_handler (next_handler=0x187da10, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:435
#5  0x4002547c in netsnmp_call_next_handler (current=0x187da98, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:540
#6  0x400461d8 in _baby_steps_helper (handler=0x187da98, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at baby_steps.c:279
#7  0x400252a8 in netsnmp_call_handler (next_handler=0x187da98, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:435
#8  0x4002547c in netsnmp_call_next_handler (current=0x187dad8, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:540
#9  0x4004b00c in netsnmp_row_merge_helper_handler (handler=0x187dad8, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at row_merge.c:332
#10 0x400252a8 in netsnmp_call_handler (next_handler=0x187dad8, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:435
#11 0x4002547c in netsnmp_call_next_handler (current=0x187db18, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:540
#12 0x40050b28 in _container_table_handler (handler=0x187db18, reginfo=0x187da48, agtreq_info=0x1893350, requests=0x18aedb0) at table_container.c:636
#13 0x400252a8 in netsnmp_call_handler (next_handler=0x187db18, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:435
#14 0x4002547c in netsnmp_call_next_handler (current=0x187db88, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:540
#15 0x4004e08c in table_helper_handler (handler=0x187db88, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at table.c:619
#16 0x400252a8 in netsnmp_call_handler (next_handler=0x187db88, reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:435
#17 0x40025b1c in netsnmp_call_handlers (reginfo=0x187da48, reqinfo=0x1893350, requests=0x18aedb0) at agent_handler.c:516
#18 0x40017160 in handle_var_requests (asp=0x18aa5b0) at snmp_agent.c:2530
#19 0x40019184 in handle_pdu (asp=0x18aa5b0) at snmp_agent.c:3326
#20 0x40019aa4 in netsnmp_handle_request (asp=0x18aa5b0, status=0x0) at snmp_agent.c:3122
#21 0x4001a2dc in handle_snmp_packet (op=0x1, session=0x1874e38, reqid=0xa, pdu=0x18ac550, magic=0x0) at snmp_agent.c:1852
#22 0x40190d7c in _sess_process_packet (sessp=0x1874de8, sp=0x1874e38, isp=0x1874e00, transport=0x18748f0, opaque=0x18874c8, olength=0x4, packetptr=0x18975c0 "H©e@H©e@\t", length=0x1) at snmp_api.c:5326
#23 0x40192d00 in _sess_read (sessp=0x1874de8, fdset=0xbe1ffcc4) at snmp_api.c:5742
#24 0x40192d80 in snmp_sess_read (sessp=0x1874de8, fdset=0xbe1ffcc4) at snmp_api.c:5761
#25 0x40192e20 in snmp_read (fdset=0xbe1ffcc4) at snmp_api.c:5378
#26 0x4001b6ac in agent_check_and_process (block=0x1) at snmp_agent.c:606
#27 0x00028a04 in start_agent_check_and_process () at snmp.cpp:360

-----Original Message-----
From: Malathi Panyam [mailto:[email protected]] 
Sent: Monday, March 28, 2011 9:45 AM
To: Dave Shield
Cc: [email protected]
Subject: RE: query to dsx1Intervaltable always kills the subagent

I am sorry if I am not clear about my question..
1) Dsx1IntervalTable has two indexes dsx1IntervalIndex and dsx1IntevalNumber
2) I am assigning them to the row request context as we do with other tables
for (int dsx1Index = 1, dsx1IntIndex = 1; dsx1Index <= lMaxIndex, dsx1IntIndex <= 96; dsx1Index++, dsx1IntIndex++){	

		rowreq_ctx = dsx1IntervalTable_allocate_rowreq_ctx(NULL);
		if (NULL == rowreq_ctx) {
			log(pSNMPLogger, "memory allocation failed\n");

			return MFD_RESOURCE_UNAVAILABLE;
		}

		if(MFD_SUCCESS != dsx1IntervalTable_indexes_set(rowreq_ctx
			, dsx1Index
			, dsx1IntIndex
			)) {
				log(pSNMPLogger,"error setting index while loading "
					"dsx1IntervalTable data.");
				dsx1IntervalTable_release_rowreq_ctx(rowreq_ctx);
				continue;
		}
}

Where lMaxIndex will provide the number of DS1's.

3) I need to assign the 96 intervals(for the past 24 hours, 15 min each interval).
4) I have a function call to make from dsx1IntervalTable_row_prep() in dsx1IntervalTable_data_access.c

Now I have started seeing a core file which has the trace pointing to the line where we retrieve the index from row request

#0  dsx1IntervalTable_Extract_Row (rowreq_ctx=0x18b3518) at dsx1IntervalTable_custom.cpp:115
115             long ds1Index = rowreq_ctx->tbl_idx.dsx1IntervalIndex - 1;
(gdb) where
#0  dsx1IntervalTable_Extract_Row (rowreq_ctx=0x18b3518) at dsx1IntervalTable_custom.cpp:115


I have been using the similar code for all my tables and I never faced this, except that I am using a two index table for the first time.

What am I doing wrong here?

Thanks for your help

Regards,
Malathi

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Dave Shield
Sent: Friday, March 25, 2011 6:24 AM
To: Malathi Panyam
Cc: [email protected]
Subject: Re: query to dsx1Intervaltable always kills the subagent

On 25 March 2011 03:57, Malathi Panyam <[email protected]> wrote:
>    We are trying to support DS1 MIB(RFC4805) on our device. We use NetSNMP
> 5.4.2.1 and use the mib2c generated code for tables.
>
> Our subagent for dsx1IntervaTable always getting killed when queried. I
> don't find any core file though.

You haven't really given much information about exactly what code
you're working with, or what might be causing the crash.   So there's
a limit to how much assistance we can be based on this report.

  I'd draw your attention to the project Wiki page
      http://net-snmp.sourceforge.net/wiki/index.php/Debugger

which might help you pinpoint the cause of the problem.

Dave

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