Monday	Tuesday	Wednesday	Thursday	Friday
aug 25 week 1	aug 26 LEC 1: Introduction, slides, and Xv6 book Preparation: Read Xv6: Ch 2 OS Organization (for your amusement: Unix) Assignment: Lab shell: Unix shell	aug 27	aug 28 LEC 2: C Programming, slides, and examples Preparation: Read Introduction in Lab firstlab: C Programming, Pointers: 5.1- 5.6, and Structures: 6.1-6.4 in Kernighan & Ritchie Assignment: Lab firstlab: C Programming	aug 29
sep 1 week 2 Labor Day	sep 2 LEC 3: C Programming - Xv6 API, slides, and examples Preparation: Read Xv6: Ch 1 OS Interfaces	sep 3	sep 4 DUE at 8AM: Lab firstlab: C Programming LEC 4: C Programming - Xv6 API, slides, and examples Preparation: Read Bitwise Operators: 2.9, Pointers: 5.1- 5.6, and Structures: 6.1-6.4 in Kernighan & Ritchie Assignment: Lab util: Unix utilities	sep 5
sep 8 week 3	sep 9 LEC 5: OS Design, slides Preparation: Read Xv6: Ch 2 OS Organization and xv6 code: kernel/proc.h, kernel/defs.h, kernel/entry.S, kernel/main.c, user/initcode.S, user/init.c, and skim kernel/proc.c and kernel/exec.c	sep 10	sep 11 DUE at 8AM: Lab util: Unix utilities LEC 6: RISC-V Calling conventions, slides Preparation: Read RISC-V Calling Convention	sep 12 DROP w/o W
sep 15 week 4	sep 16 LEC 7: System Call Entry/Exit and Traps, slides Preparation: Read Xv6 Ch 4 Traps, except 4.6 and kernel/riscv.h, kernel/trampoline.S, and kernel/trap.c Assignment: Lab syscall: System calls	sep 17	sep 18 LEC 8: Virtual Addressing Preparation: Read OSTEP: Ch 15: Address Translation, Ch 16: Segmentation, and Ch 18:Intro to Paging.	sep 19
sep 22 week 5	sep 23 DUE at 8AM: Lab syscall: System calls LEC 7: Page Tables Preparation: Read Xv6: Ch 3 Page Tables and kernel/memlayout.h, kernel/vm.c, kernel/kalloc.c, kernel/riscv.h, and kernel/exec.c	sep 24	sep 25 LEC 8: Page Faults, slides Preparation: Read Xv6: Section 4.6 Page Faults Assignment: Lab pgtbl: Page Tables	sep 26
sep 29 week 6	sep 30 LEC 9: Device drivers, slides Preparation: Read Xv6: Ch 5 Interrupts and kernel/kernelvec.S, kernel/plic.c, kernel/console.c, kernel/uart.c, kernel/printf.c	oct 1	oct 2 DUE at 8AM: Lab pgtbl: Page Tables LEC 10: Locking, slides Preparation: Read Xv6: Ch 6 Locking with kernel/spinlock.h and kernel/spinlock.c Assignment: Lab traps: Traps	oct 3
oct 6 week 7	oct 7 Review Material from First Half of Class Prepare for Midterm Exam Discuss Second Half Material	oct 8	oct 9 Midterm Exam	oct 10
oct 13 week 8 Fall Break	oct 14 Fall Break	oct 15	oct 16 Review Midterm Exam Begin Second Half of Material	oct 17 Emily and Devin Wedding Weekend
oct 20 week 9	oct 21 DUE at 8AM: Lab traps: Traps LEC 11: Scheduling Basics Preparation: Read OSTEP: Ch 6: Direct Execution and Ch 7: Scheduling.	oct 22	oct 23 LEC 12: Scheduling Fair Preparation: Read OSTEP: Ch 8: MLFQ and Ch 9: Lottery.	oct 24
oct 27 week 10	oct 28 LEC 13: Scheduling Details, Scheduling Coordination, code, slides Preparation: Read Xv6: Ch 7 Scheduling at least through Section 7.6, and kernel/proc.c, kernel/swtch.S, kernel/sleeplock.c Assignment: Lab scheduling: Scheduling	oct 29	oct 30 LEC 14: File systems, slides Preparation: Read Xv6: Ch 8 File system (except for logging sections) and kernel/bio.c, kernel/fs.c, kernel/sysfile.c, kernel/file.c	oct 31 DROP w/o F
nov 3 week 11	nov 4 DUE at 8AM: Lab scheduling: Scheduling LEC 15: Crash recovery, slides Preparation: Read Xv6: Ch 8 logging sections and kernel/log.c	nov 5	nov 6 LEC 17: File system performance and fast crash recovery Preparation: Read Journaling the Linux ext2fs Filesystem (1998) Assignment: Lab fs: File Systems	nov 7
nov 10 week 12	nov 11 LEC 18: Concurrency - Threads Intro Preparation: Read OSTEP: Ch 26: Concurrency Intro and Ch 27: Threads API.	nov 12	nov 13 DUE at 8AM: Lab fs: File Systems LEC 19: Concurrency - Locks Preparation: Read OSTEP: Ch 28: Locks	nov 14
nov 17 week 13	nov 18 LEC 20: Concurrency - Condition Variables, Semaphores Preparation: Read OSTEP: Ch 30: Condition Variables Ch 31: Semaphores. Assignment: Lab thread: Multithreading	nov 19	nov 20 Special Lab Day - Security Lab. Preparation: Read and answer the questions in Lab Security. Assignment: Lab security: Security	nov 21
nov 24 week 14	nov 25 Special Lecture Topic Day - Bitcoin and Blockchains, slides	nov 26	nov 27 Thanksgiving Break	nov 28 Thanksgiving Break
dec 1 week 15	dec 2 DUE at 8AM: Lab thread: Multithreading Review Material from Entire Class Prepare for Final Exam	dec 3	dec 4 DUE at 8AM: Lab shell: Unix shell Free Day - Ask questions about Final Exam as needed	dec 5
dec 8 week 16 - Exams	dec 9 Final Exam: 8:30-11	dec 10 Exam Week	dec 11 Exam Week	dec 12 Exam Week

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Questions or comments regarding CPSC 405? Send e-mail to Gusty at ecooper@umw.edu.

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