系统所有的命令都无法使用

今天突然接到用户反馈，无法连接工作站，想用telnet连接，拒绝后断开，跑到机房，用终端连，发现所有的命令都无法使用。提示fork什么，忘记记下来，从message看到这段信息
> Jul 24 10:35:35 V490 nfs: [ID 626546 kern.notice] NFS write error on
> host 10.1.1.1: Stale NFS file handle.
> Jul 24 10:35:35 V490 nfs: [ID 702911 kern.notice] (file handle: 800026
> 2 a0000 2486 4582d344 a0000 2 3e50646
> Jul 24 10:35:48 V490 nfs: [ID 626546 kern.notice] NFS write error on
> host 10.254.100.35: Stale NFS file handle.
> Jul 24 10:35:48 V490 nfs: [ID 702911 kern.notice] (file handle: 800026
> 2 a0000 221410 75154305 a0000 2 3e50646
> Jul 24 10:50:04 V490 /usr/dt/bin/ttsession[23319]: [ID 862433
> daemon.error] child (2333 exited due to signal 1
> Jul 24 12:46:19 V490 inetd[178]: [ID 667328 daemon.error]
> rquotad/rpc/udp server failing (looping), service termina
> ted
> Jul 24 13:08:16 V490 /usr/dt/bin/ttsession[25158]: [ID 862433
> daemon.error] child (1450) exited due to signal 1

很有可能是文件系统错误