portage upgrade today :)

>emerge -uDpv world
These are the packages that I would merge, in order:

Calculating world dependencies ...done!
[ebuild     U ] media-sound/alsa-driver-1.0.9b [1.0.9a] -debug -doc +oss 1,972 kB
[ebuild     U ] sys-apps/util-linux-2.12q-r1 [2.12q] +crypt -debug -nls -old-crypt +pam +perl (-selinux) -static 160 kB

Total size of downloads: 2,132 kB

alsa の音はなんともなかったです。気のせい。