好心人帮忙看一下ntp的日志有没有问题！！

ailms

10 Dec 23:43:34 ntpd[1409]: ntpd exiting on signal 15
10 Dec 23:45:43 ntpd[1523]: running as uid(74)/gid(65534) euid(74)/egid(65534).
10 Dec 23:49:07 ntpd[1523]: time set 0.000000 s
10 Dec 23:49:07 ntpd[1523]: synchronisation lost
12 Dec 10:20:41 ntpd[1523]: ntpd exiting on signal 15
12 Dec 10:22:57 ntpd[1525]: running as uid(74)/gid(65534) euid(74)/egid(65534).
12 Dec 10:26:22 ntpd[1525]: time set 0.000000 s
12 Dec 10:26:22 ntpd[1525]: synchronisation lost
12 Dec 11:04:15 ntpd[1525]: ntpd exiting on signal 15
12 Dec 11:06:22 ntpd[1569]: running as uid(74)/gid(65534) euid(74)/egid(65534).
12 Dec 11:09:46 ntpd[1569]: time set 0.000000 s
12 Dec 11:09:46 ntpd[1569]: synchronisation lost
12 Dec 20:50:23 ntpd[1569]: ntpd exiting on signal 15
14 Dec 12:04:55 ntpd[1539]: running as uid(74)/gid(65534) euid(74)/egid(65534).
14 Dec 12:08:12 ntpd[1539]: time set 0.000000 s
14 Dec 12:08:12 ntpd[1539]: synchronisation lost
14 Dec 16:34:02 ntpd[4414]: ntpd exiting on signal 2
16 Dec 16:36:21 ntpd[1539]: ntpd exiting on signal 15
16 Dec 16:38:36 ntpd[11654]: ntpd exiting on signal 15
16 Dec 16:43:48 ntpd[11700]: time correction of -115138 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
16 Dec 17:08:16 ntpd[11762]: time correction of -115138 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
16 Dec 17:25:33 ntpd[11876]: running as uid(74)/gid(65534) euid(74)/egid(65534).
16 Dec 17:29:02 ntpd[11876]: time correction of -115138 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
16 Dec 18:25:31 ntpd[1725]: running as uid(74)/gid(65534) euid(74)/egid(65534).
16 Dec 18:29:52 ntpd[1725]: time correction of -115139 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
18 Dec 18:38:28 ntpd[1621]: running as uid(74)/gid(65534) euid(74)/egid(65534).
18 Dec 18:41:49 ntpd[1621]: time correction of -115139 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
18 Dec 23:28:05 ntpd[1585]: running as uid(74)/gid(65534) euid(74)/egid(65534).
18 Dec 23:31:34 ntpd[1585]: time correction of -115139 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
18 Dec 23:36:28 ntpd[1597]: running as uid(74)/gid(65534) euid(74)/egid(65534).
18 Dec 23:39:53 ntpd[1597]: time correction of -115139 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
19 Dec 10:07:30 ntpd[1619]: running as uid(74)/gid(65534) euid(74)/egid(65534).
19 Dec 10:11:52 ntpd[1619]: time correction of -115140 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
19 Dec 17:12:02 ntpd[1587]: running as uid(74)/gid(65534) euid(74)/egid(65534).
19 Dec 17:15:23 ntpd[1587]: time correction of -115140 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
20 Dec 09:20:06 ntpd[8286]: running as uid(74)/gid(65534) euid(74)/egid(65534).
20 Dec 09:23:31 ntpd[8286]: time correction of -86340 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
20 Dec 09:26:39 ntpd[9138]: running as uid(74)/gid(65534) euid(74)/egid(65534).
20 Dec 09:29:56 ntpd[9138]: time correction of -86340 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
20 Dec 09:39:01 ntpd[1754]: running as uid(74)/gid(65534) euid(74)/egid(65534).
20 Dec 09:42:26 ntpd[1754]: time correction of -86340 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time.
as1:/var/log #

为什么老是出现同步丢失的情况，现在的时间是不是被设为CMOS时间了？
但 ntpq -p 的输出又没有问题，请问这到底是什么造成的呢？