I have created a .tar.gz of a freshly built d-i tree. Perhaps this will be useful for further investigation. A "chroot tree bin/sh" causes an immediate segfault.
http://www.mmweg.rwth-aachen.de/~sebastian.ley/d-i/d-i-tree.tar.gz -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]