Operating Systems Meetup 2022
https://zoom.us/j/92517386662?pwd=eVVxQjZvbzgvbE5uS2ZRbWxOaDZSUT09
git push
to your repo to submit your lab assignment.8/20/2022 📢 We have extended the deadline for Lab 3 pgtbl to Aug 27th. As usual, we will release the next lab, lab 4 Traps, by EOD today, which is now due at Sep 17th.
8/19/2022 📢 Guest Demo
8/19/2022 📢 Schedule Update
8/11/2022 📢 Guest Demo
8/11/2022 ❓Below are some questions you can think about before the Saturday meetup
trampline
page and trapframe
page?SIE
bit in register sstatus
after SIE
got disabled by CPU?8/04/2022 📢 Guest Talk
7/30/2022 📅 Reminder: Lab 2 Syscalls is due on this Saturday 7/30/2022 at 5:00 P.M. PST. We had canceled today's meetup. Mossaka will hold an 1-hour office hour to answer questions related to lab 2 syscalls.
7/24/2022 📢 Code Sharing Agreement
7/22/2022 ❓Below are some questions you can think about before the Saturday meetup
sfence.vma
and satp
instructions in RISC-V?7/17/2022 Lab 2: Syscalls has been updated. please use this link to clone your private repo. Please remember that NEVER share code publically and NEVER make the repo public. The first lab is due on 📅 Saturday 7/30/2022. You can directly git push
to your repo to submit your lab assignment.
7/17/2022 Thanks for joining our second OS meetup! Here is a brief summary of the post-meetup discussion:
In X86, ebp
is the base pointer for the current stack frame and esp
is is the current stack pointer.
Typically you would see something like
push EBP
mov EBP, ESP
sub ESP, <some_number>
In RISC-V, there are sp
and ra
, which stands for stack pointer and return address. RISC-V stack always grows downwards, and it always points to the last used place on the stack. Push
decrements sp
and pop
increments sp
.
7/15/2022 Wen Lin and Mossaka will hold an office hour for answering lab 1 questions! Come and talk about Xv6! Zoom link.
7/15/2022 ❓Below are some questions you can think about before the Saturday meetup
proc.h
?mret
and sret
instructions in RISC-V?7/14/2022 📅 Reminder: Lab 1 Util is due on this Saturday 7/16/2022 at 5:00 P.M. PST. We will hold a post-lab happy hour 🎉 on Saturday at the end of our meetup.
7/10/2022 Lab 1 Util Github Classroom has been updated. Please click here to get a fork. Please remember that NEVER share code publically and NEVER make the repo public. The first lab is due on 📅 Saturday 7/16/2022. You can directly git push
to your repo to submit your lab assignment.
7/10/2022 Thanks for joining our first OS meetup! Here are the links we shared:
7/5/2022: Our first meetup will be presented by Mossaka and Wen Lin on July 9th, 2022 at 5:00pm PST! We will introduce our org, the os-meetup and the schedule. The second half of the meetup, we will introduce operating systems, and discuss lecture 1 and our reading material chapter 1! We call for vonlunteer meetup presenter signups!
6/27/2022: Our schedule is updated!
5/31/2022: Our first meetup is scheduled to be held on the July 9th, 2022 🎉! We will be learning and discussing MIT 6.S081 Fall 2021 together! The schedule, zoom link and other info will be posted soon.
Note: Starting Fall 2020, MIT 6.828 is offered as two courses: 6.S018 (intro to OS) and 6.828 (research focused).
Datetime: PST & BJ | Presenter | Topic | Material | Slides | Recording |
---|---|---|---|---|---|
07/09/2022 5:00pm 07/10/2022 8:00am Zoom |
Mossaka & Wen | Administrative and Intro to OS | Readings: Chapter1; Lecture: Lec 1 |
Slide Deck | Recording |
07/16/2022 5:00pm 07/17/2022 8:00am Zoom |
Mossaka | OS Organization | Readings: Chapter 2 and xv6 code: kernel/proc.h, kernel/defs.h, kernel/entry.S, kernel/main.c, puser/initcode.S, user/init.c, skim kernel/proc.c, kernel/exec.c; Lecture: Lec 3 🔴 DUE: Lab util |
Slide Deck | Recording |
07/23/2022 5:00pm 07/24/2022 8:00am Zoom |
Mossaka | Page Tables | Readings: Chapter 3 and kernel/memlayout.h, kernel/vm.c, kernel/kalloc.c, kernel/riscv.h, and kernel/exec.c; Lecture: Lec 4 |
Slide Deck | Recording |
07/30/2022 5:00pm 07/31/2022 8:00am Zoom |
Mossaka | Office Hour for Lab Syscalls | Office Hour for Lab syscall & Open discussion on questions left from Page Tables 🔴 DUE: Lab syscall, Please accept the lab using this link | / | / |
08/06/2022 5:00pm 08/07/2022 8:00am Zoom |
Lixiang Ao | FaaSnap: FaaS Made Fast Using Snapshot-based VMs | FaaSnap: FaaS Made Fast Using Snapshot-based VMs Firecracker: Lightweight Virtualization for Serverless Applications |
Slide Deck | Recording |
08/13/2022 5:00pm 08/14/2022 8:00am Zoom |
Fei Hu & Wen | System Call Entry & Exit | Readings: Chapter 4 except 4.6 and kernel/riscv.h, kernel/trampoline.S, and kernel/trap.c; Lecture: Lec 6 |
Slide Deck | Recording |
08/20/2022 5:00pm 08/21/2022 8:00am Zoom |
Michael Qiu & Mossaka | xv6 GDB Demo & Office Hour for Lab Pgtbl | Demo on xv6 in GDB. Office Hour for Lab Pgtbl & Open discussion for tech questions |
/ | Recording |
08/27/2022 5:00pm 08/28/2022 8:00am |
GAP | GAP | 🔴 DUE: Lab pgtbl | / | / |
09/03/2022 5:00pm 09/04/2022 8:00am Zoom |
Wen | Page Fault | Readings: Section 4.6; Lecture: Lec 7 |
Slide Deck | Recording |
09/10/2022 5:00pm 09/11/2022 8:00am Zoom |
Hongwang Li | Interrupts | Readings: Chapter 5 and kernel/kernelvec.S, kernel/plic.c, kernel/console.c, kernel/uart.c, kernel/printf.c Lecture: Lec 9 |
Slide Deck | Recording |
09/17/2022 5:00pm 09/18/2022 8:00am Zoom |
Mossaka | Locking | Readings:"Locking" with kernel/spinlock.h and kernel/spinlock.c, Lecture: Lec 10 🔴 DUE: Lab traps |
Slide Deck | Recording |
09/24/2022 5:00pm 09/25/2022 8:00am Zoom |
Mossaka | Lab 4 and Scheduling I | Readings:"Scheduling" through Section 7.4, and kernel/proc.c, kernel/swtch.S, Lecture: Lec 11 | Slide Deck | Recording |
10/01/2022 5:00pm 10/02/2022 8:00am Zoom |
Mossaka | Readings:remainder of "Scheduling", and corresponding parts of kernel/proc.c, kernel/sleeplock.c, Lecture: Lec 12 | Notes | Recording | |
10/08/2022 5:00pm 10/09/2022 8:00am |
GAP | GAP | / | / | |
10/15/2022 5:00pm 10/16/2022 8:00am Zoom |
Wen | File System I | Readings:kernel/bio.c, kernel/fs.c, kernel/sysfile.c, kernel/file.c and "File system" (except for the logging sections), Lecture: Lec 14 🔴 DUE: Lab cow |
Slide Deck | Recording |
10/22/2022 5:00pm 10/23/2022 8:00am Zoom |
Wen | File System II Crash Recovery | Readings:kernel/log.c and the logging sections of "File system", Lecture: Lec 15 | Slide Deck | Recording |
10/29/2022 5:00pm 10/30/2022 8:00am Zoom |
Mossaka | Linux EXT3 Filesystem | Readings:Journaling the Linux ext2fs Filesystem (1998), Lecture: Lec 16 🔴 DUE: Lab thread |
Slide Deck | Recording |
11/05/2022 5:00pm 11/06/2022 8:00am Zoom |
Mossaka | Guest Talk: A new Kind of Cloud System Interface with WebAssembly | / | Slide Deck | Recording |
11/12/2022 5:00pm 11/13/2022 9:00am Zoom |
Wen | The Virtual Memory Primitives in User Programs | Readings:Virtual Memory Primitives for User Programs (1991), Lecture: Lec 17 🔴 DUE: Lab net |
Slide Deck | Recording |
11/19/2022 5:00pm 11/20/2022 9:00am Zoom |
Mossaka | Microkernels | Readings:The Performance of micro-Kernel-Based Systems (1997), Lecture: Lec 18 | Slide Deck | Recording |
12/03/2022 5:00pm 12/04/2022 9:00am |
Wen | Virtual Machine | Readings:Dune: Safe User-level Access to Privileged CPU Features (2012), Lecture: Lec 19 | Slide Deck | Recording |
12/10/2022 5:00pm 12/11/2022 9:00am |
GAP | GAP | / | / | |
12/17/2022 5:00pm 12/18/2022 9:00am Zoom |
Michael Qiu | Read Copy Update | Readings:RCU paper (2013), Lecture: Lec 23 🔴 DUE: Lab lock |
TBD | TBD |
01/07/2023 5:00pm 01/08/2023 9:00am |
Riff | Introduction to windows performance analysis | TBD | Recording | |
01/14/2023 5:00pm 01/15/2023 9:00am Zoom |
Mossaka | Writing UNIX kernel in a high-level language | Readings:the Biscuit paper (2018), Lecture: Lec 20 | Notes | Recording |
02/04/2023 5:00pm 02/05/2023 9:00am Zoom |
Mossaka | Networking | Readings:Receive Livelock (1996), Lecture: Lec 21 🔴 DUE: Lab fs |
Notes | Recording |
02/11/2023 5:00pm 02/12/2023 9:00am Zoom |
Wen | An Introduction to Service Mesh with Istio | N/A | TBD | Recording |
02/18/2023 5:00pm 02/12/2023 9:00am Zoom |
Meltdown | Readings:Meltdown (2018), Lecture: Lec 22 | TBD | TBD |
The organizers spent a lot of time and effort to make this meetup possible. If you would like to sponsor this meetup, please contact us at
systemsgossip at gmail dot com
We would like to thank the following sponsors for their support:
A: Absolutely yes! you can find all our recordings in this playlist