[Homework 6] program stopped after scope

[leesecre]

Hello,

I got stucked in counter test in hazard_pointers.rs

The problem is the test program is just stop (At first, I thought it was infinite loop).
(The test program do nothing : no error message, no progress)

I used print function to find where the program goes down.

And I found that the program stopped in scope after for loop in fn counter.

Weird thing is that when I put print code on drop for Shield, it passed the test.

The last thing that program do was calling drop for RetiredSet and do collect. (It ends well).

asan, tsan does not give me information about why the program goes down.
Can you give me some hints to solve the problem?
(single thread does not make a problem)

The code in hazard_pointers.rs
`

    scope(|s| {
        for _ in 0..THREADS {
            s.spawn(|| {
                for _ in 0..ITER {
                    ...
                }
            });
        }
       // <----- here stop the program after call Drop for RetiredSet
    });

[tomtomjhj]

cs431/homework/src/hazard_pointer/retire.rs

Line 79 in 518270e

self.collect();

Maybe your solution is looping here. If that's the case, try fixing Shield::drop.

[leesecre]

Thank you for answering.

I checked, that collect function returned and while loop is ended.

I put print after while loop and It printed the lines. Does it mean that loop ended well?

[Lee-Janggun]

Yes, that means the loop ended. That is very weird then...

[leesecre]

Oh, I think it is same problem, my program was stucked in protect too.

Thanks for your help