Hi, Unless I'm doing something stupid, it seems that rtlinux 3.0 final does not define MODVERSIONS and include modversions.h when the kernel is compiled with module versioning on. From the makefile, it looks like this only happens for i386 and the problem is with scripts/cflags.mk or scripts/Makefile? It worked fine for me with pre9 but I noticed there have been some changes since then. Frank