Latest kernel update locked up some CPUs

[Luya Tshimbalanga]

See https://bugzilla.redhat.com/show_bug.cgi?id=1154276
Some x86-64 processors mostly AMD family and some Intel Xeon cannot boot 
beyond plymouth due to BUG lockup. I had to stay on kernel 3.16 on 
updated Fedora 21. Is there a workaround or fix?

Thanks,

-- 
Luya Tshimbalanga
Graphic & Web Designer
E: luya at fedoraproject.org
W: http://www.coolest-storm.net