Apparently, on Slackware linux (2.2.19 kernel, gcc 2.7.2.3/glibc 2.0) it doesn't update the utmp entries successfully. ie: after exiting from my ssh connection, it leaves a 'ghost' in the utmp file of me being still connected. Apparently the utmp file isn't being properly updated on disconnect. This is with openssh-2.9.9p2