Today another strange problem occured on our central mail server. The machine had a pop and imap induced load of more than 50. Even new login processes consumed more than 20% of system time (popd or imapd running under uid 0!). No kernel oops or syslog messages for this problem. Please note that nearly all CPU time was spent for system time. The reboot of the server failed when it came to the afs shutdown. So we had to power cycle our box. After the reboot everything is running fine again, hmmmm........!?
Could it be that this behaviour is more or less some variant of the problem which caused a kernel oops last Friday? Regards Herbert
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