Comment 21 for bug 799141

Aha! It's a Faucet Networking bug, and it seems to happen when the networking connection is lost for a short time. That causes the TcpAcceptor to error out and stop accepting new connections.

I had assumed when writing the code that the TcpAcceptor would only receive errors if there was a critical problem, but apparently it can also get an error if e.g. a connection attempt is interrupted because the link goes down. I'll fix this and run a new test.