snmp continues the waiting state.

Issue

• The problem that snmp continued the waiting state occurred in our customer's system.
• Backtrace:

#0  pthread_once () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S:95
#1  0x00007fb23a09f6f4 in __backtrace (array=<value optimized out>, size=64) at ../sysdeps/ia64/backtrace.c:85
#2  0x00007fb23a011a4b in __libc_message (do_abort=2, fmt=0x7fb23a0f8d20 "*** glibc detected *** %s: %s: 0x%s ***\n")
    at ../sysdeps/unix/sysv/linux/libc_fatal.c:178
#3  0x00007fb23a017366 in malloc_printerr (action=3, str=0x7fb23a0f90f8 "malloc(): smallbin double linked list corrupted", ptr=<value optimized out>)
    at malloc.c:6311
#4  0x00007fb23a01b11f in _int_malloc (av=0x7fb23a32fe80, bytes=<value optimized out>) at malloc.c:4319
#5  0x00007fb23a01bb91 in __libc_malloc (bytes=56) at malloc.c:3664
#6  0x00007fb23be79b8d in _dl_map_object_deps (map=0x7fb23c0445e0, preloads=<value optimized out>, npreloads=<value optimized out>, trace_mode=0,
    open_mode=-2147483648) at dl-deps.c:507
#7  0x00007fb23be7fa11 in dl_open_worker (a=0x7fffca1c0bf0) at dl-open.c:264
#8  0x00007fb23be7b196 in _dl_catch_error (objname=0x7fffca1c0c40, errstring=0x7fffca1c0c38, mallocedp=0x7fffca1c0c4f,
    operate=0x7fb23be7f890 <dl_open_worker>, args=0x7fffca1c0bf0) at dl-error.c:178
#9  0x00007fb23be7f46a in _dl_open (file=0x7fb23a0f5b9e "libgcc_s.so.1", mode=-2147483647, caller_dlopen=0x0, nsid=-2, argc=6, argv=<value optimized out>,
    env=0x7fffca1c1d90) at dl-open.c:569
#10 0x00007fb23a0c70a0 in do_dlopen (ptr=0x7fffca1c0de0) at dl-libc.c:86
#11 0x00007fb23be7b196 in _dl_catch_error (objname=0x7fffca1c0e00, errstring=0x7fffca1c0df8, mallocedp=0x7fffca1c0e0f, operate=0x7fb23a0c7060 <do_dlopen>,
    args=0x7fffca1c0de0) at dl-error.c:178
#12 0x00007fb23a0c71f7 in dlerror_run (name=<value optimized out>, mode=<value optimized out>) at dl-libc.c:47
#13 __libc_dlopen_mode (name=<value optimized out>, mode=<value optimized out>) at dl-libc.c:160
#14 0x00007fb23a09f5f5 in init () at ../sysdeps/ia64/backtrace.c:41
#15 0x00007fb23a340b23 in pthread_once () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S:104
#16 0x00007fb23a09f6f4 in __backtrace (array=<value optimized out>, size=64) at ../sysdeps/ia64/backtrace.c:85
#17 0x00007fb23a011a4b in __libc_message (do_abort=2, fmt=0x7fb23a0f8d20 "*** glibc detected *** %s: %s: 0x%s ***\n")
    at ../sysdeps/unix/sysv/linux/libc_fatal.c:178
#18 0x00007fb23a017366 in malloc_printerr (action=3, str=0x7fb23a0f9080 "double free or corruption (!prev)", ptr=<value optimized out>) at malloc.c:6311
#19 0x00007fb23a019e93 in _int_free (av=0x7fb23a32fe80, p=0x7fb23e3038c0, have_lock=0) at malloc.c:4811
#20 0x00007fb23bc41549 in agentx_got_response (operation=1, session=0x7fb23e2ba200, reqid=<value optimized out>, pdu=0x7fb23e2bc450, magic=0x7fb23e3038d0)
    at mibgroup/agentx/master.c:222
#21 0x00007fb239d09ace in _sess_process_packet (sessp=0x7fb23e2ba160, sp=0x7fb23e2ba200, isp=0x7fb23e2ba190, transport=<value optimized out>,
    opaque=<value optimized out>, olength=<value optimized out>, packetptr=0x7fb23e3043f0 "\001\022", length=80) at snmp_api.c:5524
#22 0x00007fb239d0a7d2 in _sess_read (sessp=0x7fb23e2ba160, fdset=<value optimized out>) at snmp_api.c:5968
#23 0x00007fb239d0b079 in snmp_sess_read2 (sessp=0x7fb23e2ba160, fdset=<value optimized out>) at snmp_api.c:6080
#24 0x00007fb239d0b13b in snmp_read2 (fdset=0x7fffca1c1af0) at snmp_api.c:5672
#25 0x00007fb23c093ffe in receive (argc=<value optimized out>, argv=<value optimized out>) at snmpd.c:1225
#26 main (argc=<value optimized out>, argv=<value optimized out>) at snmpd.c:1060
(gdb)