The automount daemon is dying on regular basis. No home directories are available after that. Personal web sites in
/home/*/public_htmlare unreachable and personal file shares through samba are down.
The following messages are logged in /var/log/messages :
automount: set_tsd_user_vars: failed to get passwd info from getpwuid_r automount: get_mnt_list:363: setmntent: Too many open files