LEC #	TOPICS AND ASSOCIATED FILES
1	Shell Exercises (PDF) sh.c (C)
2	Boot xv6 (PDF)
3	Trace System Calls, Add Halt (PDF)
4	Lazy Page Allocation (PDF)
5	xv6 CPU Alarm (PDF)
6	Locks (PDF) ph.c (C)
7	Uthreads (PDF) uthread_switch.S (S) uthread.c (C)
8	Barrier (PDF) barrier.c (C)
9	Big Files (PDF) big.c (C) Inode Diagram (PDF)
10	Crash (PDF)
11	Journaling (PDF)
13	OS Organization (PDF)
18	Spin Lock Alternatives (PDF)
21	Lock-free Coordination (PDF)
22	Virtual Machines (PDF)