The things you mention cause "freezing" by asking the kernel to do too much so that it doesn't have time to deal with other stuff. Those issues are unfortunate,

The things you mention cause "freezing" by asking the kernel to do too much so that it doesn't have time to deal with other stuff. Those issues are unfortunate, but really hard to completely avoid. The interesting thing here is that the described bug isn't just overloading the kernel with work or starving it of resources, it's something which seems completely innocent.