The responsibility lies with Red Hat. We pay them for support. Support goes beyond answering phone calls and email. Support includes fixing known bugs (especially those that already have patches available).
We use Red Hat Enterprise Linux at $work because the PHBs get a warm fuzzy feeling deep down inside from knowing that Red Hat is just a phone call away should something go horribly wrong. We use the version of Perl that ships with Red Hat because, once again, the PHBs love that warm fuzzy feeling. If we build Perl ourselves then Red Hat won't support it and the PHBs lose that warm fuzzy feeling.
None of us knew about this problem because we simply have not noticed any performance degradation. Does that mean that are simply going to ignore it? Nope. We are not currently affected by the bug but that does not mean that we will never be affected by it. I will be calling our rep and demanding that they resolve this issue. We pay too much money to Red Hat to do any less.
