Hi, The following definition of PMD_SHIFT is from include/asm-i386/page.h of the kernel version 2.6.11 #define LARGE_PAGE_SIZE (1UL << PMD_SHIFT) But, there is no the definition of PMD_SHIFT at all in page.h, and also no other header files included by it. How does this work? -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ