Originally Posted by asymptote
What was the series of events that lead to this happening - do you remember?
Yes. I was trying to install Alfresco but was running into problems. I couldn't find a log being updated, so I tried to make some changes to syslogd, sshd, etc. using Webmin. I'm sure one of Webmin's scripts overwrote a config file somewhere activating this feature, but I can't find it.
The suggestion above about man dmesg -n 1 doesn't seem to affect it.