by Daniel Kaelin.
I am running Moodle 1.9.10 on a Unix / CENTOS 6 platform.
The PHP version is 5.3.2.
Mine seems to be triggered by adding big blue button rooms to the course but it isn't affecting every course that has rooms in it.
I'm going to try bumping the max allowed packet size a lot higher and see if that addresses the issue. I'll post back here with the outcome.