> Why is kernel restricted to use virtual addresses of only 1 GB? Or > what is the need to split up the virtual address space into user > addresses and kernel addresses? We can have 4GB for kernel and 4GB for userspace but this has a overhead of flushing of tlb for every syscall. You can also make the split 2/2GB but this has a problem of having less user address space. 3/1 is a better choice. -- Vivek Kutal -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
