Hi, with source cvs-updated some minutes ago: making sure the kern library is up to date... `libkern.a' is up to date. link vNB99/netbsd tsc.o: In function `tsc_post_ap': /u/NetBSD/src/sys/arch/x86/x86/tsc.c:253: undefined reference to `atomic_swap_64' *** Failed target: netbsd Kurt