Computer Science 322 Operating Systems Mount Holyoke College Spring 2008

Agenda

• Announcements
  • Lecture assignment note (see below)
• Hopefully, account issues can all be solved today. Please finish up Lab 0 by Friday.
• Lab 1 continues. You should know how to do it all today.
• The Kernel
• More on Processes
  • fork(2)
  • Shared Memory
• Threads
  • Thread concept
  • POSIX threads

Lecture Assignment

There is no new lecture assignment, but now that everyone has books and accounts, the previous lecture assignments will all be due on Friday. Starting with Friday's lecture assignment, they will once again be due on the next day after they're assigned.

Examples

• forking
• forkbomb
• FreeBSD fork code: /usr/src/sys/kern/kern_fork.c
• FreeBSD run/ready queues: /usr/src/sys/kern/kern_switch.c
• FreeBSD context switch: /usr/src/sys/i386/i386/swtch.s
• pthreadhello
• what_shared
• proctree_threads