(gdb) up #1 0x40451e64 in netStatsTable_handler (handler=0x109a40, reginfo=0x2, reqinfo=0x40454580, requests=0x40454588) at sdslcMIB.c:760 760 sdslcMIB.c: No such file or directory. in sdslcMIB.c (gdb) p request $1 = (netsnmp_request_info *) 0x10a368 (gdb) p *request $2 = {requestvb = 0x109828, parent_data = 0x109f68, agent_req_info = 0x108f88, range_end = 0xd8328, range_end_len = 9, delegated = 0, processed = 255, inclusive = 0, status = 0, index = 1, repeat = 0, orig_repeat = 0, requestvb_start = 0x109828, next = 0x0, prev = 0x0, subtree = 0xe0100} (gdb) p *request->requestvb $3 = {next_variable = 0x0, name = 0x109840, name_length = 11, type = 2 '\002', val = {integer = 0x109a40, string = 0x109a40 "", objid = 0x109a40, bitstring = 0x109a40 "", counter64 = 0x109a40, floatVal = 0x109a40, doubleVal = 0x109a40}, val_len = 4, name_loc = { 1, 3, 6, 1, 4, 1, 20873, 99, 1, 1, 23, 0 }, buf = '\0' , data = 0x0, dataFreeHook = 0, index = 0} (gdb) p table_entry $4 = (struct netStatsTable_entry *) 0x0 (gdb) p *table_entry Cannot access memory at address 0x0 (gdb)