It's been a while since I got this problem too. But if I remember
correctly, this is caused by a wtmp that's too large.
Try find the wtmp file (usually in /var/log), and delete or move it.
On Wed, 13 Jan 1999, Chien-Yu Chen wrote:
>I been having problem with my who command and I know that's due to one of
>my user account (for bbs user to log in). the login shell modify the utmp
>file and I guess it's not handled well. however, I usually just get a core
>dump. but now I am seeing this error message
>
>who: Memory exhausted
>
>does anyone has some idea so I can save myself a few minutes. of course I
>check the paging space already....thanks
>
>Momma always said: life is like
> `. a box of 95;
> .__ o __. you never know
> |__/|\__| if you're gonna
> /\ < > /\ crash ...
>
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