udev 031 is broken
Today I uploaded a new udev package, but sadly after the katie run I noticed that it's a bit toxic (as in may eat your disks). There is a bug in the new udevstart implementation, which now passes the wrong arguments to the script called with the PROGRAM statements and in some situations you may end up with devices having the wrong major/minor numbers or symlinks pointing to the wrong device.
So, do not upgrade udev today. If you already did, but have not rebooted yet, please downgrade the package to the version in testing (0.030). If you have rebooted and you are reading this then probably you only had minor troubles (if you have only one hard disk nothing too bad should happen. Maybe). If some process has written over the wrong file system then I'm sorry, this is why we call it unstable. :-)
I also uploaded a new module-init-tools package with some bug fixes and two bugs left (patches will be appreciated).