I've ran into this during an upgrade of Ubuntu Hardy to Debian testing. Yes, this is not supported, but this might indicate a problem though.
Ubuntu was hit by the same bug for Hardy => Intrepid, see https://launchpad.net/bugs/234345. According to Michael Vogt this is related to glibc [1]. This happened in a OpenVZ container (host system is amd64, guests are i686). 1: https://bugs.launchpad.net/debian/+source/findutils/+bug/234345/comments/10 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org