I'm a Professor at Stanford, and I'm teaching an Operating Systems course that uses Pintos for its class projects. I'm writing because I see that this repository is publicly accessible and appears to contain solutions for the projects. This is a problem for us, because it makes it very easy for students to cheat. Even if they just look at your solution, and don't copy it, that will still reduce the educational experience for them. Would you be willing to take down this repository or at least make it private? If so, that would be a great help for us.

wonder what ‘elem’ represents in this‘
I find no declare of this.

If one process creates one child process. Then it creates one new thread and two threads concurrently wait for child process. There might cause race condition. Thus, I think the struct pcb might need lock, at least for this function.

i heard of this on but dont know to much about it is it like harvered