Package: util-linux Version: 2.5-5 If clock is invoked with the -u flag and the kernel has the real time clock enabled, it causes a segmentation fault. omitting the -u flag or running a kernel with the real time clock disabled will not cause the problem. I don't have the strace handy, but I can provide it if needed. Debian version: rex-current uname -a: Linux pinky 2.0.13 #13 Sun Aug 25 09:59:02 CDT 1996 i486 libc: 5.2.18 -Larry