Symptom
When running SNMP v3, snmpd could crash with below backtrace:
Comment : #0 0xf76f4430 in __kernel_vsyscall ()
(gdb) bt
#0 0xf76f4430 in __kernel_vsyscall ()
#1 0xf67923e9 in ioctl () from /lib/libc.so.6
#2 0xf75d415a in mts_recv () from /isan/lib/libmts.so
#3 0xf6ebf7b9 in ?? () from /isan/lib/libutils.so
#4 0xf6ebf96a in cmi_req_resp () from /isan/lib/libutils.so
#5 0xf720467c in security_cmi () from /isan/lib/libaccounting.so
#6 0x080b16e7 in sync_snmp_userDB_on_install ()
#7 0x080b2808 in sysmgrcb_scope_done ()
#8 0xf686de3f in sysmgr_dispatch () from /isan/lib/libsysmgr.so
#9 0x080ad445 in handle_mts_message ()
#10 0x080aece2 in read_mts_message ()
#11 0x080c6d52 in receive ()
#12 0x0805a91c in main ()
CreatedBy : Shangxin Du
Date/Time : 2018-04-30 16:26:34
Workaround
please remove all the snmp configuration and clean reboot the leaf.