ntp core dump

Hello.

Last time i have a ntp core dump on next SRU:

Oracle Solaris 11.1.19.6.0

Oracle Solaris 11.2.8.4.0

Below output of dtrace /usr/dtrace/DTT/Bin/crash.d

User Stack Backtrace,
              libc.so.1`_ndoprnt+0xf
              libc.so.1`vsnprintf+0x68
              ntpd`mvsnprintf+0x82
              ntpd`mprintf_event+0x27
              ntpd`newpeer+0x940
              ntpd`peer_config+0x12e
              ntpd`peer_name_resolved+0x299
              ntpd`getaddrinfo_sometime_complete+0x3dc
              ntpd`process_blocking_resp+0x41
              ntpd`input_handler+0xb9c
              ntpd`sigio_handler+0x52
              libc.so.1`__sighndlr+0x15
              libc.so.1`call_user_handler+0x2d2
              libc.so.1`sigacthandler+0xee
              libc.so.1`__sigsuspend+0x15
              ntpd`wait_for_signal+0x8c
              ntpd`ntpdmain+0xcd5
              ntpd`_start+0x7d


Kernel Stack Backtrace,
              genunix`sigaddqa+0x62
              genunix`trapsig+0x109
              unix`trap+0x1093
              unix`0xfffffffffb8001a7


Ansestors,
    336449 /usr/lib/inet/ntpd -p /var/run/ntp.pid -g\0
      1 /usr/sbin/init\0
        0 sched\0