Hi, as I've been just be bitten by this, I'd like to warn you.
My root partition has an ext4 FS while other partitions use BTRFS. But the bug shown below seems to be related to the ext4 FS on my root partition. I've just tried to install the 12.6.37-gentoo-r2 kernel. make modules_installed told me, some modules were invalid. Stepping back to sys-apps/coretuils-8.9 fixed the problem, though coreutils-8.10 doesn't seem to be buggy. It's related to a bug in btrfs and ext4 which is revealed by sys-apps/coreutils-8.10 While the btrfs bug seems to be fixed in 2.6.38-rc7 the ext4 bug is not fixed, yet (AFAIK) See http://bugs.gentoo.org/show_bug.cgi?id=353907 esp. comments 17 and 22 and http://www.mail-archive.com/bug-coreutils@gnu.org/msg19952.html Be warned, Helmut.
