Hi... On Jan 22, 2008 1:19 AM, GoatZilla <goatzilla@xxxxxxxxx> wrote: > I'm having trouble figuring out what this define is really supposed to refer > to. From the comments in the arch files, it seems to indicate a file offset > for pages that aren't present. What I don't understand is the number of > bits it's usually set to -- 28 or 29. This seems to be too many bits to > actually fit in a typical 32-bit PTE along with the type and present bits. After reading http://pdos.csail.mit.edu/6.828/2004/readings/i386/s05_02.htm at a glance, seems like it's possible. Maybe it assumes P=0 (not present), thus the rest of the bits are available. it is used as the indicator for page fault handler...as we all know. People, CMIIW. regards, Mulyadi. -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
