I am confused. Does this only affect people with older cpus that do not support SSE2?

I am not affected by the bug, yet am on a 32 bit CPU and PHP 5.2.16 was compiled with -O2.

uname -a:

Linux www 2.6.9-67.0.22.ELsmp #1 SMP Fri Jul 11 10:38:12 EDT 2008 i686 i686 i386 GNU/Linux

Running the test script outlined above comes back immediately. No hang.

CPU is Intel(R) Xeon(R) CPU E5430 @ 2.66GHz which support SSE2.

Since my CPU supports SSE2, would I not be affected by this?