My NFS server is up and other clients can access x. One particular client can’t. I tried to unmount the NFS share:
[root@nfsclient ~]# umount -f /disk/x umount2: Device or resource busy umount.nfs: /disk/x: device is busy umount2: Device or resource busy umount.nfs: /disk/x: device is busy
If I use df or lsof to try to figure out what process to kill, they hang. I
am reluctant to just reboot, as many other users are getting stuff done. dmesg doesn’t show anything useful.
How to get unstuck?