Links to notes etc. on future days are copies of materials from 2018 6.828. We will update the notes as the course progresses. The lecture notes may help you remember the lecture content, but they are not a replacement for attending lectures.

MondayTuesday WednesdayThursday Friday
sep 2 sep 3
Reg Day		 sep 4
LEC 1 (rtm): Introduction and examples (handouts: xv6 book)
Preparation: Read chapter 1 of the xv6 book (for your amusement: Unix)
Assignment: Lab util: Unix utilities		 sep 5 sep 6
sep 9
LEC 2 (fk): Dynamic memory allocation (allocators)
Preparation: 5.1 (Pointers and addresses) through 5.6 (Pointer arrays) and 6.4 (pointers to structures), and 8.7 (Storage Allocator) by Kernighan and Ritchie (K&R)		 sep 10 sep 11
LEC 3 (TAs): C and gdb (pointers example)
Preparation: Read 2.9 (Bitwise operators) by K&R
Assignment: Lab sh: Simple shell		 sep 12
DUE: Lab util		 sep 13
sep 16
LEC 4 (rtm): Isolation & system call entry/exit
Preparation: Read "Chapter 2: Operating system organization"		 sep 17 sep 18
LEC 5 (fk): Virtual memory (1)
Preparation: Read "Chapter 3: Page Tables"
Assignment: Lab alloc: Memory allocator		 sep 19
DUE: Lab shell
DUE: 6.828: email us a paragraph with project proposal		 sep 20
Student
sep 23
LEC 6 (ab): Virtual memory (2) (slides)		 sep 24 sep 25
LEC 7 (fk): System calls, interrupts, exceptions
Preparation: Read "Traps and device drivers" and the related xv6 source files
Assignment: Lab lazy: Lazy allocation		 sep 26
DUE: Lab alloc		 sep 27
sep 30
LEC 8 (ab): Multiprocessors and locking (slides)
Preparation: Read "Locking" with spinlock.c		 oct 1 oct 2
LEC 9 (rtm): Processes and switching
Preparation: Read "Scheduling" up to "Sleep and wakeup" and proc.c, swtch.S
Assignment: Lab cow: Copy-on-write fork		 oct 3
DUE: Lab lazy
DUE: 6.828: project proposal		 oct 4
ADD DATE
oct 7
LEC 10 (rtm): sleep&wakeup
Preparation: Read remainder of "Scheduling", and corresponding parts of proc.c		 oct 8 oct 9
LEC 11 (TAs): Calling conventions and stack frames RISC-V
Assignment: Lab syscall: Uthread & alarm		 oct 10
DUE: Lab cow		 oct 11
oct 14 - oct 15
Columbus Day		 oct 16
LEC 12 (fk): File systems
Preparation: Read bio.c, fs.c, sysfile.c, file.c and "File system" except for the logging sections		 oct 17
DUE: Lab syscall		 oct 18
oct 21
Quiz #1 open book and notes
scope: Lectures 1 through 11, labs through lab cow
practice: previous years' quizzes.		 oct 22 oct 23
LEC 13 (fk): Crash recovery
Preparation: Read log.c and the logging sections of "File system"
Assignment: Lab lock: Parallelism/locking		 oct 24 oct 25
oct 28
No class; hacking day		 oct 29 oct 30
LEC 14 (rtm): File system performance and fast crash recovery
Preparation: Read Journaling the Linux ext2fs Filesystem (1998)
Assignment: Lab fs: File system		 oct 31 nov 1
DUE: Lab lock
DUE: 6.828: Report project status
nov 4
LEC 15 (ab): Virtual Memory (3) (slides)
Preparation: Read Virtual Memory Primitives for User Programs (1991)		 nov 5 nov 6
LEC 16 (rtm): OS Organization
Preparation: Read Exokernel (1995), FAQ
Homework 1 due: HW exokernel question
Assignment: Lab mmap: Mmap		 nov 7
DUE: Lab fs		 nov 8
nov 11
Veteran's Day		 nov 12 nov 13
LEC 17 (ab): OS and Networking
Preparation: Read Receive Livelock (1996)
Homework 2 due: HW livelock question
Assignment: Lab net: Network stack		 nov 14
DUE: Lab mmap
DUE: 6.828: Report project status		 nov 15
nov 18
LEC 18 (fk): Kernels and HLL
Preparation: Read the Biscuit paper (2018), FAQ
Homework 3 due: HW Biscuit question		 nov 19 nov 20
DROP DATE
LEC 19 (ab): Scalable locks (slides) (code)
Preparation: Read Non-scalable locks paper (2012), FAQ
Homework 4 due: ticket lock question		 nov 21 nov 22
nov 25
LEC 20 (rtm): RCU notes, 2018 slides
Preparation: Read RCU paper (2013), FAQ
Homework 5 due: RCU question		 nov 26 nov 27
No class; hacking day		 nov 28 - nov 29
Thanksgiving
dec 2
LEC 21 (ab): Virtual Machines (1) (slides)
Preparation: Read Software vs Hardware Virtualization (2006) or Disco?
Homework 6 due: VM question		 dec 3 dec 4
No class; hacking day		 dec 5 dec 6
DUE: Lab net
DUE: 6.828: project
dec 9
LEC 22: 6.828 project demos in class		 dec 10 dec 11
LAST DAY OF CLASSES
LEC 23: 6.828 project demos in class		 dec 12 dec 13
dec 16 dec 17 dec 18 dec 19
Quiz #2
Location: 32-123, Time: 1:30-3:30PM
open book, notes, and papers.
scope: Lectures 12 through last lecture (dec 2), labs syscall through mmap.
practice: previous years' quizzes.		 dec 20

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