Strange error message

[killermonkey]

Hi guys,
This error message has shown up a few times at the bottom of my default.php

Warning: write failed: No space left on device (2 in Unknown on line 0

Warning: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0

Just wondering if anyone could explain this error for me and how I can sort it.
Thanks

[michael_s]

This means the /tmp partition on your hard drive is full. You can either change the /tmp dir, delete all the files in the /tmp dir or store your sessions in the database.

The easiest is to clear all the files in the /tmp dir...