That's not what I was objecting to. You said : "The kernel virtual area (3 - 4 GB address space) maps to the first 1 GB of physical RAM." In fact this is misleading, since it gives the feeling that the whole first GB of physical RAM is reserved for kernel use, which it is certainly not (otherwise a machine with 1.5 GB RAM would only give 512 MB max physical RAM to userspace processes...). The ascii drawing is misleading too.
That's not what I was objecti
That's not what I was objecting to. You said : "The kernel virtual area (3 - 4 GB address space) maps to the first 1 GB of physical RAM." In fact this is misleading, since it gives the feeling that the whole first GB of physical RAM is reserved for kernel use, which it is certainly not (otherwise a machine with 1.5 GB RAM would only give 512 MB max physical RAM to userspace processes...). The ascii drawing is misleading too.