Hi all, Recently one my Centos 5.7 VM just crashes at least once a day randomly (hang). In /var/log/messages there is nothing at all that there is problem (no error, no failure). The log just stops. The only change I did before this crashes is I activated LDAP authentication, and also auditd. But I don't see any evidence relating to it. Any clue where to look for the cause? Thank you. Fajar