Server hung, wiki and blogs not available after restart

The server was completely frozen today, web services were still working for the end user though. I could not connect through the admin panel or through screen share. I noticed there were some kernel errors in the system log before I lost the admin panel.

After a hard boot, /groups and /users are not accessible.

I'm getting a slew of errors in the system log:

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May 26 15:58:26 podcast com.apple.wikid[188]: Removing stale pidfile /var/run/wikid.pid
May 26 15:58:28 podcast com.apple.launchd[1] (com.apple.wikid[188]): Exited with exit code: 1
May 26 15:58:28 podcast com.apple.launchd[1] (com.apple.wikid): Throttling respawn: Will start in 7 seconds
May 26 15:58:36 podcast com.apple.wikid[202]: Removing stale pidfile /var/run/wikid.pid
May 26 15:58:37 podcast com.apple.KerberosAutoConfig[205]: Kerberos configuration is up to date
May 26 15:58:38 podcast com.apple.launchd[1] (com.apple.wikid[202]): Exited with exit code: 1
May 26 15:58:38 podcast com.apple.launchd[1] (com.apple.wikid): Throttling respawn: Will start in 7 seconds
May 26 15:58:46 podcast com.apple.wikid[209]: Removing stale pidfile /var/run/wikid.pid
May 26 15:58:48 podcast com.apple.launchd[1] (com.apple.wikid[209]): Exited with exit code: 1
May 26 15:58:48 podcast com.apple.launchd[1] (com.apple.wikid): Throttling respawn: Will start in 7 seconds
May 26 15:58:56 podcast com.apple.wikid[215]: Removing stale pidfile /var/run/wikid.pid
May 26 15:58:58 podcast com.apple.launchd[1] (com.apple.wikid[215]): Exited with exit code: 1
May 26 15:58:58 podcast com.apple.launchd[1] (com.apple.wikid): Throttling respawn: Will start in 8 seconds
May 26 15:59:07 podcast com.apple.wikid[217]: Removing stale pidfile /var/run/wikid.pid
May 26 15:59:09 podcast com.apple.launchd[1] (com.apple.wikid[217]): Exited with exit code: 1
May 26 15:59:09 podcast com.apple.launchd[1] (com.apple.wikid): Throttling respawn: Will start in 8 seconds
May 26 15:59:18 podcast com.apple.wikid[219]: Removing stale pidfile /var/run/wikid.pid
May 26 15:59:20 podcast com.apple.launchd[1] (com.apple.wikid[219]): Exited with exit code: 1
May 26 15:59:20 podcast com.apple.launchd[1] (com.apple.wikid): Throttling respawn: Will start in 7 seconds
May 26 15:59:28 podcast com.apple.wikid[227]: Removing stale pidfile /var/run/wikid.pid
May 26 15:59:30 podcast com.apple.launchd[1] (com.apple.wikid[227]): Exited with exit code: 1
May 26 15:59:30 podcast com.apple.launchd[1] (com.apple.wikid): Throttling respawn: Will start in 8 seconds
May 26 15:59:39 podcast com.apple.wikid[237]: Removing stale pidfile /var/run/wikid.pid
May 26 15:59:41 podcast com.apple.launchd[1] (com.apple.wikid[237]): Exited with exit code: 1
May 26 15:59:41 podcast com.apple.launchd[1] (com.apple.wikid): Throttling respawn: Will start in 8 seconds
May 26 15:59:44 podcast authorizationhost[157]: MechanismInvoke 0x120450 retainCount 2
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This repeats over and over again.

Any thoughts?