Unable to nfs umount:Device or resource busy
I am trying to unmount an nfs resource that is no longer connected. First my command df -k hangs on mounted nfs which no longer connected and now it appears that I cannot even kill these df -k processes ????
Currently I have few df -k and ls processes that are hanging on this still mounted nfs
When I keep trying to umount /nfs I get resource or device is busy and my commands continue to hang on this disconnected nfs mount...
One thing I don't want to do is reboot..
Thanks for any help