Did you ever find a resolution to this? I'm looking to drive an Adafruit LCD panel while I have the camera connected as well, but am running into what looks like this same issue.

Thread resurrection. I was interested in doing something similar to pick up when/if my dog was barking. Absolute and precise sound measuring wasn't important, just picking up spike events. Ended up cobbling together a small Python script on top of http://people.csail.mit.edu/hubert/pyaudio/ to do th...

Not a solution (sorry), but I see these too. Not just for particular jobs, but all over the place when the Pi has been up for a while. The system seems to generally keep working well enough when this is going on, but it isn't clear what's triggering the messages. RAM and load look fine, and there ar...