dereel, my main machine, crashed (or rather, hung) this afternoon. Nothing in the log files, which is normal enough. That's why I log remotely to another machine, in this case cojones, the machine that is connecting me to the Internet until the NBN radiation tower is finally complete. But something went wrong there: syslogd hung itself up a month ago and I didn't notice, so there's no evidence of what caused the hang.
On the bright side, this happens so seldom that it's worth mentioning here. w3.lemis.com has been up for 1318 days (well over 3½ years), and it's still going strong.