Something accessing hard drive

Hi

I have set my hard drive to standby after a given time through laptopmode.  The hd actually passes to standby mode but only for half a second or so after which it spins up again. If I issue hdparm -y /dev/ hda the same behaviour is observed.

I checked the logs inmediatly after this happens but found nothing meaningful to me. As far as I can tell I have configured syslog.conf in a way that log daemons will not sync after each minor event. I deactivated some daemons to check whether they could be the cause (lpd, cron, hal) but the problem persists.

Is there a way to track down what is accessing the drive? I found a program called blktrace which seems to be useful in this situation, but I'd like to hear from any other suggestions.

System is running sid with 2.6.23 custom kernel.

Thanks

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