From: utzoo!decvax!cca!jfw@mit-ccc@sri-unix
Newsgroups: net.unix-wizards
Title: 4.1BSD paging
Article-I.D.: sri-unix.4799
Posted: Sat Dec 11 10:38:58 1982
Received: Sun Dec 12 09:15:25 1982

Date: 8 Dec 1982 15:47:42-EST
I have a question about how 4.1bsd handles page faults (I have studied
the code somewhat, but I do not yet understand it).  My question is as follows:
suppose a kernel routine wishes to examine a page in a process's address space.
Will the kernel become upset if that page is not in core at that time?  If not,
would such a page need to be in the address space of the running process, or is
there a way for the kernel to intelligently poke through the swap space for that
page?

Thanks in advance,
John Woods
jfw@mit-ccc@mit-mc
...!decvax!genradbo!mitccc!jfw