This sounds similar to kernel debugging- is that what you have in mind? Windows (the OS I'm most familiar with) has a couple different styles of kernel debuggin

This sounds similar to kernel debugging- is that what you have in mind? Windows (the OS I'm most familiar with) has a couple different styles of kernel debugging, which allows you to introspect various levels of system state: https://msdn.microsoft.com/en-us/library/windows/hardware/ff553382(v=vs.85).aspx https://msdn.microsoft.com/en-us/library/windows/hardware/ff... https://msdn.microsoft.com/en-us/library/windows/hardware/hh451161(v=vs.85).aspx https://msdn.microsoft.com/en-us/library/windows/hardware/hh...