I updated klibc from 1.5 to the Testing 1.5.14. We had to patch 1.5 so heavily to even work and it had evil bugs, so going with 1.5.14 is better. First of all, it won't upgrade smoothly due to a pacman bug. Please do rm /usr/lib/klibc/include/asm to remove a symlink that causes lots of false file conflicts (http://archlinux.org/pipermail/pacman-dev/2008-September/012971.html). After that you can update. If you want to test these, DO NOT OVERWRITE YOUR CURRENT INITRAMFS AND DO NOT WAIT FOR A KERNEL UPDATE TO DO SO. I only ran x86_64 on one machine, i686 is completely untested. Please do the following: mkinitcpio -k 2.6.26-ARCH -g /boot/kernel26.img.newklibc Then boot the kernel26.img.newklibc instead of kernel26.img (that can be done directly from grub). Here is the news: - Removed mknod from klibc-extras, using the klibc one instead - Update to klibc 1.5.14, fixing a memory corruption and probably more - Add resolve-modalias to klibc-extras - Update klibc-udev, it should now be in the same state as our udev package. Module blacklisting with disablemodules= or load_modules=off from the kernel commandline should now behave exactly like in the real system. - Updated v86d, I hope the segfault bug on i686 is now fixed due to the klibc update. Please test thoroughly and sign off.