Zend certified PHP/Magento developer

Cannot login locally on a NFS attached linux server after a NFS hang

I set up a NFS server for a cluster node and i used it for a while.
One day my nodes were unable to mount so i had to reboot the system.
Since, it takes a long time to boot and i’m unable to login on the nodes with any account credentials.

During the boot it gives me this “FS-Cache: Duplicate cookie detected” error.

Here are the error logs, it seems to be related to pam authentication but i don’t know where to look: Error logs

Thanks in advance.