[Sunhelp] Server Reboot

[Nabeel Ahmed]

Hi,
After I added in the memory yesterday, my system rebooted itself last night.
This I looked into at /var/adm/messages.
Then today afternoon, it was giving an error 'VFork Error' while issuing any
command.
Finally the server had to be rebooted and after that its working for the
last 1hr now.
There are no other messages which give any clue as to why the server
rebooted or why the error came up today.
Any ideas?
TIA,
Nabeel