Server 10.5.8 crashes with stuck processes, no log entries

[gwoods]

Hi All,

I’ve been struggling with this for a while and really need some help. I have an os x server 10.5.8 running on an imac 8,1. It provides all the services for our small business. Since Sept 2009 it has been crashing every once in a while (once a month or so). Since Feb however it has become much more frequent, sometimes a couple of times a day!

Symptoms
The server stops responding and the clock in the upper right of the logged in session shows the time of the crash. I don’t see any strange log messages using the console app and all messages. Messages just stop at the time of the crash. The mouse still operates and I can usually do one thing on the GUI before it freezes completely. top -o cpu shows the cpu is basically idle and there are many (around 20) stuck processes. Crashes occur regardless of whether or not someone is logged in

Anytime the server crashes, I reboot into safe mode twice before booting again in standard mode. I then run repair file permissions. Repair file permissions always notes a number of things, but they are always the same and it never seems to change them. I don’t think they are an issue.

I have run memtest from single user mode for 10 iterations with no errors reported.

I have turned the error reporting to its highest level for all services on server admin. The server is running AFP, DHCP, DNS, Firewall, iCal, Mail, MySQL, Open Directory (Master), SMB, VPN, Web (internal network access only).

Any suggestions on how to proceed with the debug?
Thanks in advance!

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