Lecture Recordings and Reading Assignments

#	Date	Topic	Suggested Reading
1	1/10	Intro to CS385
2	1/12	BIOS routines and the boot sector	bootasm.S and bootmain.c in source code. OSPP 2.9.
3	1/17	hw2, boot sector programming, gdb, segmented addressing	memory addressing modes in OSPP, Ch. 8
4	1/19	xv6 initialization, interrupt handling	main(), trap() and functions called by these. OSPP 2.2-2.5
5	1/24	drivers and system calls	in the xv6 booklet, follow the code from a userspace printf() all the way to the first character of the string appearing on the screen. system calls start in trapasm.S. OSPP 2.6
6	1/26	executable, object files, linking review. intro to virtual memory	try your own objdump --disassemble and readelf -a on files, try to understand the details. OSPP on page tables and memory management OSPP Ch 8
7	1/31	virtual memory contd.	OSPP Ch 8
8	2/2	mmap, hw4 and virtual memory stack recap	OSPP Ch 8
9	2/7	modes of mmap operation, and page replacement	"man mmap()", OSPP on page replacement
10	2/9	dynamic linking	this page, Bryant & O'Hallaron (from CS361) 7.10, 7.12
11	2/14	hw5 discussion, process switching intro	OSPP 4.6
12	2/16	first process and fork()	userinit, sys_fork()
13	2/21	detailed process switching run-through	scheduler(), sched(), swtch.S
14	2/23	midterm discussion, process scheduling
15	2/28	intro to threads vs. processes
16	3/2	midterm review and hw6	see above
17	3/28	signals
18	3/30	hw7, and synchronization
19	4/4	synchronization wrap-up
20	4/6	intro to file systems	OSPP on file systems
21	4/11	lec21
22	4/13	lec22
23	4/18	lec23
24	4/20	lec24
25	4/25	lec25
26	4/27	lec26
27	??	lec27
28	??	lec28

notes from the screen

These are the notes written on the screen during lecture. Hardly lecture notes, but somebody asked for them.

future reading

To read ahead of lecture and be a little better prepared, read the (OSPP) textbook sections in the order below.

• S 2-2.6
• S 8-8.3
• S 9-9.7
• TBA

Most lectures will be recorded and posted here.

Literature references
OSPP: Operating Systems - Principles and Practice 2/e, Anderson and Dahlin
xv6 rev 8 source code
xv6 commentary

Below is a list of topics to be covered, in tentative order.

Boot, BIOS and Real Mode

OS Initialization and Protected Mode

Processes and Threads

Interrupts / Exceptions and System Calls

Virtual Memory

Context Switching and Scheduling

Concurrency in the Kernel

File Systems and Permanent Storage

Authentication and Access Control

Virtualization