This is very similar to bug #494674, I've done another test on this group of mirrors today. Results: Testing "alsaproject" mirror group... good: ftp://ftp.alsa-project.org/pub bad: ftp://mirrors.go-parts.com/alsa/ bad: ftp://ftp.task.gda.pl/pub/linux/misc/alsa/ bad: ftp://gd.tuwien.ac.at/opsys/linux/alsa/ bad: http://mirrors.zerg.biz/alsa/ bad: http://dl.ambiweb.de/mirrors/ftp.alsa-project.org/ bad: http://alsa.cybermirror.org/ bad: http://alsa.mirror.fr/ bad: http://gd.tuwien.ac.at/opsys/linux/alsa/ 1 of 9 good Upstream has a mirror list here http://alsa-project.org/main/index.php/Download but I don't believe that's up to date either, most of those are not working for me
Fixed here https://gitweb.gentoo.org/repo/gentoo.git/commit/profiles/thirdpartymirrors?id=3a0f002e60985f59c364f1d849383b2114fbf119