I am using snmpd (5.3.1) with agentx support . I have a subagent with sends continously send_v2trap() traps to the master agent. But the issue is snmpd hangs when send_v2trap is called continously . Below is the stack trace.
test1@/# pstack `pgrep demo`
2012: ./demo_module_8
fe984f57 send (9, 811a618, 1fc, 0)
fef39cd3 netsnmp_unix_send (809ef50, 811a618, 1fc, 8115a8c, 8115a90) + 103
fef03fa6 _sess_async_send (80b8f00, 8115a58, 0, 0) + 8b6
fef0420d snmp_sess_async_send (80b8f00, 8115a58, 0, 0) + 5d
fef036cb snmp_async_send (80694b0, 8115a58, 0, 0) + 4b
fef035f8 snmp_send (80694b0, 8115a58) + 38
feac8425 send_trap_to_sess (80694b0, 80ba2c0) + 155
feac7f50 netsnmp_send_traps (ffffffff, ffffffff, feb09744, a, 8116d58, 0) + 5c0
feac8004 send_enterprise_trap_vars (ffffffff, ffffffff, feb09744, a, 8116d58) + 44
feac84ea send_trap_vars (ffffffff, ffffffff, 8116d58) + 6a
feac8584 send_v2trap (8116d58) + 34
08050fef send_trap (8047c04, 8047bf7, 8047c18, f, 8047c0f, 8047bbe) + 28f
08050d27 main (1, 8047c84, 8047c8c) + 1a7
08050aba _start (1, 8047d60, 0, 8047d70, 8047d8d, 8047d98) + 7a
test1@/# pstack `pgrep snmpd`
fea14f57 send (f, 8181bb0, 204, 0)
fed59cd3 netsnmp_unix_send (81224a0, 8181bb0, 204, 8200574, 8200578) + 103
fed23fa6 _sess_async_send (816cdf0, 8200540, 0, 0) + 8b6
fed2420d snmp_sess_async_send (816cdf0, 8200540, 0, 0) + 5d
fed236cb snmp_async_send (8178dc0, 8200540, 0, 0) + 4b
fed235f8 snmp_send (8178dc0, 8200540) + 38
fee62f5b handle_master_agentx_packet (1, 8178dc0, 7866df2, 816ffa8, 0) + 50b
fed24f16 _sess_process_packet (816cdf0, 8178dc0, 8192a58, 81224a0, 82b7cc8, 6e) + 876
fed25f68 _sess_read (816cdf0, 8047c34) + e78
fed26354 snmp_sess_read (816cdf0, 8047c34) + 34
fed250c8 snmp_read (8047c34) + 48
08054180 receive (8047e1c, 8047d80, feffa7c0, fefd315a, feffa288, 8047cf4) + 3e0
08053b7a main (4, 8047dc4, 8047dd8) + 14ca
0805218a _start (4, 8047e84, 8047e98, 8047ce4, 8047e9e, 0) + 7a
Both master and sub-agent are waiting in send. Any pointers will be really helpful.
thanks,
Pradhap
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