This summer, I am trying out a flipped classroom format. Discussion sections in this class has always been recorded, so there's nothing new there, and we will stick to that. Please check out the information about DEN lectures and discussion sections videos to see how to gain access to recorded lecture and discussion section videos. For discussion sections, a video will be posted on D2L and Blackboard before 6pm on Thursday and your assignment is to watch the video by the end of that day. The TA will hold a Zoom meeting during live discussion section time on Friday starting at 10:00am and this meeting is only for questions and answers about the discussion video and programming assignments. This live meeting will end when no one has any more questions.

During a discussion section, the TA will present information regrading up-coming programming assignments. If you have a particular question that you would like the TA to answer on Friday's live session, you should send e-mail to the TA before 5PM on Thursday. The TA will try his best to cover such requests.

Please note that programming assignments are due on Tuesdays (except for Kernel Assignment 3) and you are expected to have finished the an assignment before its due date.

• Week 1 (PDF) (6-up PDF) (5/22) - gdb, warmup #1
  • video - 60 minutes (audio transcript if you are watching this video on D2L)
  • recording of live discussion section - 36 minutes (nothing much went on at the beginning of this video since we sent out the wrong Zoom ID)
• Week 2 (PDF) (6-up PDF) (5/29) - C, Unix, brief warmup #2 introduction
  • video - 54 minutes (audio transcript if you are watching this video on D2L)
  • recording of live discussion section - 17 minutes
• Week 3 (PDF) (6-up PDF) (6/5) - warmup #2, multiple processes and multiple threads
  • video - 61 minutes (audio transcript if you are watching this video on D2L)
  • recording of live discussion section - 11 minutes
• Week 4 (PDF) (6-up PDF) (6/12) - warmup #2, multiple processes and multiple threads, introduction to kernel assignments
  • video - 58 minutes (audio transcript if you are watching this video on D2L)
  • recording of live discussion section - 29 minutes
• Week 5 (PDF) (6-up PDF) (6/19) - introduction to kernel assignments, kernel 1
  • video - 64 minutes (audio transcript if you are watching this video on D2L)
  • recording of live discussion section - 20 minutes
• Week 6 (PDF) (6-up PDF) (6/26) - reading kernel 1 source code
  • video - 61 minutes (audio transcript if you are watching this video on D2L)
  • recording of live discussion section - 16 minutes
• Week 7 (PDF) (6-up PDF) (7/3) - introduction to kernel 2
  • video - 60 minutes (audio transcript if you are watching this video on D2L)
  • No live dicsussion (university holiday).
• Week 8 (TXT) (7/10) - kernel 2 polymorphism
  • video - 57 minutes (audio transcript if you are watching this video on D2L)
  • recording of live discussion section - 13 minutes
• Week 9 (PDF) (6-up PDF) (7/17) - introduction to kernel 3
  • video - 58 minutes (audio transcript if you are watching this video on D2L)
  • recording of live discussion section - 21 minutes
• Week 10 (TXT) (7/24) - objdump, address space implementation (vmarea, mmobj, pframe, page table), page fault handling
  • video - 61 minutes (audio transcript if you are watching this video on D2L)
  • recording of live discussion section - 41 minutes

• Week 1 (PDF) (6-up PDF) (5/22) - gdb, warmup #1
• Week 2 (PDF) (6-up PDF) (5/29) - C, Unix, brief warmup #2 introduction
• Week 3 (PDF) (6-up PDF) (6/5) - warmup #2, multiple processes and multiple threads

  Code in slides:

  • defs.h
  • fork-wait.c
  • cat.c
  • redirect.c
  • thr-term.c
  • busywait.c
  • join.c
  • deadlock.c
  • trylock.c

• Week 4 (PDF) (6-up PDF) (6/12) - warmup #2, Unix signals, introduction to kernel assignments

  Code in slides:

  • whoopee.c
  • status-update.c
  • sigblock.c
  • sigwait.c
  • direct.c
  • cancel.c
  • three-threads.c

• Week 5 (PDF) (6-up PDF) (6/19) - introduction to kernel assignments, kernel 1
• Week 6 (PDF) (6-up PDF) (6/26) - reading kernel 1 source code

  Code in slides:

  • kmain.c
  • faber_test.c

• Week 7 (PDF) (6-up PDF) (7/3) - introduction to kernel 2

  Code in slides (these files are in the "kernel/include/fs" directory):

  • dirent.h
  • fcntl.h
  • file.h
  • lseek.h
  • open.h
  • stat.h
  • vfs.h
  • vfs_syscall.h
  • vnode.h
  • ramfs/ramfs.h
  • s5fs/s5fs.h
  • s5fs/s5fs_subr.h

• Week 8 (TXT) (7/10) - kernel 2 polymorphism

  Code:

  • vfs.c
  • ramfs.c
  • vnode.c

• Week 9 (PDF) (6-up PDF) (7/17) - introduction to kernel 3

  Code (kernel):

  • elf32.c
  • access.c

• Week 10 (TXT) (7/24) - objdump, address space implementation (vmarea, mmobj, pframe, page table), page fault handling

  Code (kernel):

  • vn_mmobj_ops.c - code for the mmobj inside a vnode

  Code (user):

  • hello.c
  • syscall.c (user space)

  Kernel 3 FAQ:

  • handle the first page fault
  • meaning of pagenum
  • page faults

  Useful Linux commands:

      objdump --disassemble --section=".text" user/usr/bin/hello.exec
      objdump --disassemble --section=".text" -S user/usr/bin/hello.exec
      objdump --headers user/usr/bin/hello.exec
      xxd -g 1 user/usr/bin/hello.exec

  Useful GDB commands:

      add-symbol-file user/usr/bin/hello.exec 0x08048094
      b __libc_static_entry
      b main
      b *0x12345678
      layout asm
      layout next
      si
      info registers
      kernel info vmmap_mapping_info curproc->p_vmmap

• Week 11 (7/31) - (no discussion section this week)

  Code (user):

  • fork-and-wait.c
  • memtest.c
  • eatmem.c
  • forkbomb.c

  Kernel 3 FAQ:

  • do_fork()
  • "/sbin/init" not working
  • do_brk()

Week #	Date	Topics	Comments
1	5/22	gdb, warmup #1 intro
2	5/29	C, Unix
3	6/5	warmup #2 intro	(warmup #1 due on Tuesday)
4	6/12	multithreading, Unix signals
5	6/19	intro to kernel assignments	(warmup #2 due on Tuesday)
6	6/26	kernel #1
7	7/3	intro to kernel 2	(kernel 1 due on Tuesday)
8	7/10	kernel 2 tests
9	7/17	intro to kernel 3	(kernel 2 due on Tuesday)
10	7/24	objdump, debugging user space processes
11	7/31	(no discussion section this week)	(kernel 3 due on Thursday)