[coreboot] Buildrom breaks with 2.6.25.4 or 2.6.24.7 kernel source

[bari]

I tried building LAB for the Tyan s-2891 using buildrom and 2.6.25.4 
kernel source.

debug output:

/home/ly/buildrom/buildrom-devel/work/busybox/busybox-1.1.3/libbb/procps.c:15:22: 
error: asm/page.h: No such file or directory
make[2]: *** 
[/home/ly/buildrom/buildrom-devel/work/busybox/busybox-1.1.3/libbb/procps.o] 
Error 1
make[1]: *** [all] Error 2

The kernel was built just fine. It just breaks during the build of busybox.

Also breaks with 2.6.24.7 kernel, 2.6.22.2 or 2.6.22.5 kernel is fine.

Any ideas why?

-Bari