Server Locks Up

[Shannon Scott]

Hello,
I have a webserver ( Apache 1.3.20 with Tomcat 4.0.4 :: RedHat 7.2 ) that
keeps locking up.  The clock doesn't change, and if the screensaver is on,
it freezes. It began yesterday, and has happened 3 times within the last 24
hours.  I am thinking that it may be a hardware problem, but I don't know
how to diagnose this problem.  I reboot... then everything works fine for
several hours.  Pieces of the messages file after a reboot are attached.  I
don't know if it is significant.
Any pointers or advice on what to look for or docs to check out is greatly
appreciated.
Thank You
Shannon
-------------- next part --------------
Dec  5 13:50:01 saco kernel: ENOMEM in journal_get_undo_access_R3681ed4a, retrying.
Dec  5 13:55:09 saco kernel: ENOMEM in journal_get_undo_access_R3681ed4a, retrying.
Dec  5 13:55:15 saco kernel: ENOMEM in do_get_write_access, retrying.
Dec  5 13:55:20 saco kernel: ENOMEM in do_get_write_access, retrying.
Dec  5 13:57:01 saco kernel: ENOMEM in journal_get_undo_access_R3681ed4a, retrying.
Dec  5 13:57:27 saco kernel: ENOMEM in journal_get_undo_access_R3681ed4a, retrying.


Dec  5 14:08:03 saco kernel: ENOMEM in journal_get_undo_access_R3681ed4a, retrying.
Dec  5 14:08:17 saco sshd(pam_unix)[2263]: session opened for user klam by (uid=0)
Dec  5 14:08:55 saco kernel: ENOMEM in journal_get_undo_access_R3681ed4a, retrying.
Dec  5 14:09:56 saco last message repeated 2 times
Dec  5 14:11:54 saco last message repeated 3 times
Dec  5 14:12:13 saco last message repeated 2 times
Dec  5 14:12:23 saco kernel: ENOMEM in do_get_write_access, retrying.
Dec  5 14:13:06 saco sshd(pam_unix)[2262]: session closed for user dlum
Dec  5 14:13:19 saco kernel: ENOMEM in journal_get_undo_access_R3681ed4a, retrying.
Dec  5 14:13:24 saco kernel: ENOMEM in do_get_write_access, retrying.
Dec  5 14:13:41 saco last message repeated 3 times
Dec  5 14:13:49 saco su(pam_unix)[2324]: session opened for user root by klam(uid=603)
Dec  5 14:26:20 saco syslogd 1.4.1: restart.