Michael-san,
Please try the patch appended below.
I still would like to know which program triggers this problem as I have not been able to reproduce it.
Even after applying it, the same trouble happened. As my trial, I commented out that assertion in space.cc and the system seemed to work at that time.... However, I missed the important point, which I didn't know until that time.
I used i486 PC-note(old, old note PC) and I set -nopentium to rmgr, it worked... i486 doesn't support a large page, does it ? oh, I'm sorry that you worry about a funny thing and I appreciate your advice because I thought you forgot this.
Regards,
Eiji Ota
PS. Another funny thing. After removing the assertion, it worked even on i486. It might happen to work at that time...