It appears that a similar bug was encountered by Debian in 2005. See http://lists.debian.org/debian-glibc/2005/08/msg00289.html http://lists.debian.org/debian-glibc/2005/08/msg00311.html http://lists.debian.org/debian-glibc/2005/08/msg00483.html
This would suggest that it might be a problem with OpenBSD's compat_linux.
