[Newbies] Semaphore problems

Hello,

I'm trying to get this code run, but I'm not getting the results I expect. I running on a 3.10beta image.

semA := Semaphore new. semB := Semaphore new.

[Transcript show: 'b1'; cr. semB signal. semA wait. Transcript show: 'b2'; cr.] fork. [Transcript show: 'a1'; cr. semA signal. semB wait. Transcript show: 'a2'; cr.] fork.

results:

b1

a2

That's all. If I hit cmd-doIt rapidly I do begin to see a1 and b2 as well. The process browser doesn't seem to show anything waiting.

I'm on a amd64, in a 32bit chroot. I'm in Gentoo Linux, so the VM was built from source.

Thanks for any clues,

JTS