Date: Sat, 21 Oct 2000 09:20:07 -0700 (PDT) From: Jack Howarth <howarth@bromo.med.uc.edu> I believe they should be able to get PAGE_SIZE from the _getpagesize() call declared in sys/shm.h however I am unclear how to back calculate PAGE_SHIFT. The asm/page.h header contains... It's simple math, PAGE_SHIFT == log2(PAGE_SIZE); Later, David S. Miller davem@redhat.com