(I had not seen Kees Cook's failure to reproduce before I posted my last message.)
I have just reproduced the problem with a fresh install of 9.04 on an X86 box. (I do not have a fresh 8.04 install at the moment.)
I am at a loss to explain why Kees Cook could not reproduce the problem. I wonder whether he was using a fresh install of an LTS version, or some other configuration.
I request that this bug be reopened.