So my phone (GSM Galaxy Nexus, running 4.4.2, CM11) has been draining on battery pretty fast. Tried figuring out what it was - used the default battery status app - this showed up: Battery Status. That couldn't be normal, and it wasn't. Android OS was keeping the phone awake all the time: Android OS.
Fired up BBS: Kernel Wakelocks. I could use this, I thought. However, as it appears, Partial Wakelocks appears to be near-empty!
So what is causing these ghostly wakelocks? I'm currently flashing to the 23rd of January build, but it has been appearing for quite a while now, so I don't think it's the ROM version. (Running 16th)