not really. this machine it's pretty busy and the php log is dumped in the syslog too. there are no other system messages - except php warnings.
i do have a pre-problem image of this machine which i did put up and now monitoring too. but there has been a lot of work done since then and i rather resolve this because moving everything over will be a very problematic at this point....
the strange thing is that it always happens pretty much exactly at the same time. and there are no cron jobs that are scheduled for that time. but it's always a few minutes before the default daily cron at 3:15. like i said it doesn't happened every day but this week happened twice and it gets to be annoying since i don't get to know about it until later in the morning...
thanks...