服务器日志一直出现这个错误
kernel: [2494507.154077] lo: Disabled Privacy Extensions
网上说这个是因为IPV6引起的，请问是这样的吗？
而且会引起死机。
Received disconnect from （某监控中心IP）: 11: Closed due to user request.
而且这个IP登录退出后就会出现直接宕机情况。

kernel: [2498795.049441] hrtimer: interrupt took 1005127564 ns
Apr 12 14:32:14  [20154]: (root) CMD (/usr/sbin/ntpdate asia.pool.ntp.org >> /var/log/ntpdate.log)
Apr 12 14:34:23  sshd[19358]: Received disconnect from 某IP: 11: Closed due to user request.
Apr 12 14:36:00  sshd[20166]: Did not receive identification string from 某IP
Apr 12 14:36:00  sshd[20156]: Did not receive identification string from 某IP

Apr 12 14:32:47  kernel: imklog 5.4.0, log source = /proc/kmsg started.