I installed CentOS 7 on Hyper-V. This is CLI only, no GUI. Here's my question. It happens quite often that I get a random message output to the console while I'm in the middle of doing something. I get a lot of hv_balloon messages, for example. These can occur at any time and make reading the console very difficult. I think these might be some kind of debug messages, but I'm not sure. If so, is there a way to change the debug level of the console, and what debug level would be appropriate?