>The glibc issue is interesting... it seems its a regression from F-13,
>we had to apply a patch for F-13 but even with all that in place I
>still get some failures. So it seems to be a regression (and we're
>seeing it on the F-15 glibc one as well. I'll do some more testing and
>follow up with the logs etc so that someone more smart than I am might
>be able to comment and assist :-)
 
Very Good.
maybe you can find info on  this link?
http://armin762.wordpress.com/2010/12/09/arm-hardfloat-and-gentoo/