Why some cifs shares were lost showing the message "CIFS VFS: Unexpected lookup error -512" on RHEL 6.4?
Issue
cifsshares got unmounted with the messages.
kernel: CIFS VFS: Unexpected lookup error -512
kernel: CIFS VFS: No task to wake, unknown frame received! NumMids 0
kernel: CIFS VFS: Unexpected SMB signature
Environment
- Red Hat Enterprise Linux 6.4
- kernel versions earlier than
2.6.32-408
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