lam@uicbert.eecs.uic.edu (Michael Lam) (01/09/91)
I have heard that the MACH operating system has an OS feature such that a programmer can set a trap to read/write protect a memory segment: make a system call using a memory address range as argument, then any subsequent read/write operation into that memory range would invoke a trap to call a (probably C written) interrupt handler. Examining/changing a page's dirty bit is another thing I would like to do. I am working on a Sun 4 environment and have heard that Sun 4 has something similiar. Can anyone provide me info on that. Please response by email. Thanks in advance. Michael Lam EECS Dept. University of Illinois at Chicago email address: lam@uicbert.eecs.uic.edu