Calling spawn too many times crashes the program

[tomaka]

If you use native threads and call spawn() too many times, the program will simply crash with application terminated abnormally with signal 9 (Killed).

Example:

fn main() {
    use std::io::timer;
    use std::iter;

    for i in iter::count(1u, 1) {
        println!("thread num: {}", i);
        spawn(proc() {
            timer::sleep(10000)
        })
    }
}

A try_spawn(proc():Send) -> Result<(), ()> could be a good addition too.

[huonw]

it seems like it could theoretically be -> IoResult<()> (or at least some more descriptive error type).

[alexcrichton]

This is a result of the destructor bomb of Task going off too soon. I believe the correct action is being taken because failing to spawn a thread is indicative of an OOM situation which generally involves failing. This is certainly a bug in that it should not cause the runtime to abort, it should be a proper task failure at the very least.