Follow-up Comment #1, bug #19164 (project grub):
This is likely due to the NX bit being used.
I have encountered this problem with gcc 3.2.3 on a RHEL WS release 3 machine
with grub 0.93 and 0.97.
I've determined the thunk / trampoline is generated on the stack,
and if NX is properly used by the kernel, it will most likely
trap the execution of code on the stack.
For your experiment with gcc 4.0.4, was the machine physically
different than the machine with gcc 4.1.2?
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