(gdb) bt full
#0  0x00007f5310d751d7 in raise () at /lib64/libc.so.6
#1  0x00007f5310d768c8 in abort () at /lib64/libc.so.6
#2  0x00007f5310db4f07 in __libc_message () at /lib64/libc.so.6
#3  0x00007f5310e4f047 in __fortify_fail () at /lib64/libc.so.6
#4  0x00007f5310e4d200 in __readonly_area () at /lib64/libc.so.6
#5  0x00007f5310e4efb7 in  () at /lib64/libc.so.6
#6  0x00007f52580cee31 in netsnmp_large_fd_set_resize (fdset=fdset@entry=0x7f5248e284d0, setsize=2050) at large_fd_set.c:185
        __d = 1024
        i = 1024
        fd_set_bytes = <optimized out>
#7  0x00007f52580cf044 in netsnmp_large_fd_setfd (fd=1197, fdset=fdset@entry=0x7f5248e284d0) at large_fd_set.c:88
        __func__ = "netsnmp_large_fd_setfd"
#8  0x00007f52580afbc5 in snmp_sess_select_info2_flags (sessp=sessp@entry=0x0, numfds=numfds@entry=0x7f5248e285b8, fdset=fdset@entry=0x7f5248e284d0, timeout=timeout@entry=0x7f5248e285c0, block=block@entry=0x7f5248e285bc, flags=flags@entry=1) at snmp_api.c:6074
        slp = 0x7f51f014a1a0
        next = 0x7f51f0023420
        rp = <optimized out>
        now = {tv_sec = 139991648731232, tv_usec = 139991386850800}
        earliest = {tv_sec = 0, tv_usec = 0}
        alarm_tm = {tv_sec = 139991386850512, tv_usec = 0}
        active = 0
        requests = <optimized out>
        next_alarm = 0
        __func__ = "snmp_sess_select_info2_flags"
#9  0x00007f52580b027d in snmp_sess_select_info_flags (sessp=sessp@entry=0x0, numfds=numfds@entry=0x7f5248e285b8, fdset=fdset@entry=0x7f5248e285f0, timeout=timeout@entry=0x7f5248e285c0, block=block@entry=0x7f5248e285bc, flags=flags@entry=1) at snmp_api.c:5972
        rc = <optimized out>
        lfdset = {lfs_setsize = 1024, lfs_setptr = 0x7f51f012dfc0, lfs_set = {fds_bits = {0 <repeats 16 times>}}}
#10 0x00007f525808d299 in snmp_synch_response_cb (ss=ss@entry=0x7f51f014c8e0, pdu=pdu@entry=0x7f51f014c270, response=response@entry=0x7f5248e286b8, pcb=pcb@entry=0x7f52585c84b0 <agentx_synch_input>) at snmp_client.c:1059
        lstate = {waiting = 1, status = 0, reqid = 1142061271, pdu = 0x0}
        state = 0x7f5248e285d0
        cbsav = 0x7f52585b74a0 <handle_agentx_packet>
        cbmagsav = 0x0
        numfds = 1198
        count = <optimized out>
        fdset = {fds_bits = {0 <repeats 16 times>}}
        timeout = {tv_sec = 0, tv_usec = 0}
        tvp = 0x7f5248e285c0
        block = 1
#11 0x00007f52585c863c in agentx_synch_response (ss=ss@entry=0x7f51f014c8e0, pdu=pdu@entry=0x7f51f014c270, response=response@entry=0x7f5248e286b8) at mibgroup/agentx/client.c:95
#12 0x00007f52585c877d in agentx_open_session (ss=0x7f51f014c8e0) at mibgroup/agentx/client.c:130
        pdu = 0x7f51f014c270
        response = 0x7f52585c8480 <agentx_check_packet>
        timeout = <optimized out>
        __func__ = "agentx_open_session"
#13 0x00007f52585b82be in subagent_open_master_session () at mibgroup/agentx/subagent.c:889
        t = 0x7f51f00485c0
        sess =
          {version = 193, retries = -1, timeout = -1, flags = 384, subsession = 0x0, next = 0x0, peername = 0x0, remote_port = 0, localname = 0x0, local_port = 0, authenticator = 0x0, callback = 0x7f52585b74a0 <handle_agentx_packet>, callback_magic = 0x0, s_errno = 0, s_snmp_errno = 0, sessid = 0, community = 0x0, community_len = 0, rcvMsgMaxSize = 1472, sndMsgMaxSize = 0, isAuthoritative = 0 '\000', contextEngineID = 0x0, contextEngineIDLen = 0, engineBoots = 0, engineTime = 0, contextName = 0x0, contextNameLen = 0, securityEngineID = 0x0, securityEngineIDLen = 0, securityName = 0x0, securityNameLen = 0, securityAuthProto = 0x0, securityAuthProtoLen = 0, securityAuthKey = '\000' <repeats 31 times>, securityAuthKeyLen = 0, securityAuthLocalKey = 0x0, securityAuthLocalKeyLen = 0, securityPrivProto = 0x0, securityPrivProtoLen = 0, securityPrivKey = '\000' <repeats 31 times>, securityPrivKeyLen = 0, securityPrivLocalKey = 0x0, securityPrivLocalKeyLen = 0, securityModel = -1, securityLevel = 0, paramName = 0x0, securityInfo = 0x0, transport_configuration = 0x0, myvoid = 0x0}
        agentx_socket = 0x0
        __func__ = "subagent_open_master_session"
#14 0x00007f52585b86d1 in agentx_reopen_session (clientreg=2, clientarg=<optimized out>) at mibgroup/agentx/subagent.c:951
#15 0x00007f52580dec3c in run_alarms () at snmp_alarm.c:218
        a = 0x7f51f00fdac0
        clientreg = 2
        t_now = {tv_sec = 37760313, tv_usec = 814626}
        __func__ = "run_alarms"
#16 0x00007f52585b3335 in agent_check_and_process (block=block@entry=1) at snmp_agent.c:698
---Type <return> to continue, or q <return> to quit---
        numfds = 36
        fdset = {fds_bits = {0 <repeats 16 times>}}
        timeout = {tv_sec = 0, tv_usec = 0}
        tvp = <optimized out>
        count = 0
        fakeblock = 0
#17 0x00007f525934af8a in agent_thread (arg=<optimized out>) at snmp/agent.c:206
        __PRETTY_FUNCTION__ = "agent_thread"
#18 0x0000000000601d48 in dummy_start (data=0x13de6d0) at utils.c:1235
        __cancel_buf =
            {__cancel_jmp_buf = {{__cancel_jmp_buf = {0, 1413036348168839568, 0, 139991386855872, 139991386855168, 0, 1413036348160450960, -1353177656187182704}, __mask_was_saved = 0}}, __pad = {0x7f5248e28ef0, 0x0, 0x0, 0x0}}
        __cancel_routine = 0x4516a7 <ast_unregister_thread>
        __cancel_arg = 0x7f5248e29700
        __not_first_call = 0
        ret = 0x0
        a = {start_routine = 0x7f525934ae80 <agent_thread>, data = 0x0, name = 0x11b97f0 "agent_thread         started at [  125] res_snmp.c load_module()"}
#19 0x00007f5311a92dc5 in start_thread () at /lib64/libpthread.so.0
#20 0x00007f5310e3773d in clone () at /lib64/libc.so.6