Something just rattled the disk for several minutes in a row. I don't know what it was. I have some cron jobs, but those don't take more than a few seconds, except the nightly hammer run, and I know when that is. I ended up killing the process taking up the most memory, which turned out to be a Konqueror window where I was shopping for some solar stuff. I tried with top and systat to figure out the culprit, but did not succeed.
Pierre -- li ze te'a ci vu'u ci bi'e te'a mu du li ci su'i ze te'a mu bi'e vu'u ci