Hi, I am going through the memory management code for x86, and found that pmd (page middle directory, i know in x86 this should be NULL) value is calculated from the pud. Theoretically pmd value is found from pgd value. So what is the significance of pud, and what is the function pud_offset actually does. Regards, Shameem -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ