This sequence of events resulted in the webac agent going down. I've started using a program called Monit to monitor the agent's PID. If it does not exist, it restarts it. Still would like to know why this might be happening. Happens pretty frequently.

/var/log/messages:

Apr 5 17:31:00 gw2 syslog-ng[2036]: STATS: dropped 0
Apr 5 18:31:00 gw2 syslog-ng[2036]: STATS: dropped 0
Apr 5 19:31:00 gw2 syslog-ng[2036]: STATS: dropped 0
Apr 5 20:15:42 gw2 kernel: gwdca[4034]: segfault at 00000000ebd06058 rip 000000
000804a90c rsp 00000000ff826460 error 4
Apr 5 20:15:55 gw2 kernel: gwdca[1643]: segfault at 00000000ebe20058 rip 000000
000804a90c rsp 00000000ffe8f010 error 4
Apr 5 20:31:00 gw2 syslog-ng[2036]: STATS: dropped 0
Apr 5 20:31:20 gw2 kernel: gwdca[2144]: segfault at 00000000ebe24058 rip 000000
000804a90c rsp 00000000fff40260 error 4
Apr 5 21:31:01 gw2 syslog-ng[2036]: STATS: dropped 0
Apr 5 22:31:01 gw2 syslog-ng[2036]: STATS: dropped 0
Apr 5 23:01:39 gw2 zmd: NetworkManagerModule (WARN): Failed to connect to Netwo
rkManager
Apr 5 23:01:40 gw2 kernel: ISO 9660 Extensions: Microsoft Joliet Level 3
Apr 5 23:01:40 gw2 kernel: ISO 9660 Extensions: RRIP_1991A
Apr 5 23:02:01 gw2 zmd: ServiceManager (ERROR): Service Refresh Failed: Failed
to parse XML metadata: Error: ConnectFailure
Apr 5 23:02:03 gw2 zmd: Daemon (WARN): Not starting remote web server
Apr 5 23:07:09 gw2 kernel: gwinter[3644]: segfault at 0000000054465a54 rip 0000
0000f73f5baa rsp 00000000f4defb88 error 4
Apr 5 23:07:22 gw2 kernel: gwdva[3671] general protection rip:8049e50 rsp:fff0c
e50 error:0