Hi, I managed to get atop-1.23 to build on GNU/Hurd. Any interest to finish the patch, there is top already? atop works except for network interfaces, since we don't have /proc/net/dev. I can modify the code to at least list the interfaces using 'inetutils-ifconfig -as'. And when starting it complains on: open semaphore-group: Function not implemented warning: no process exit detection Svante