Top command crashing with floating point exception!

Peter Smith peter.smith at
Tue Mar 5 10:56:00 CST 2002

It would be a good idea to verify that binary first.

rpm -vVf $(which top) && echo OK || echo FAILED


Basil Hussain wrote:

>Just today, whilst winging my way around a command-line session on one of my
>Linux servers (Dell-installed RH7.0, 2.2.16-enterprise) I ran the 'top'
>command and receieved, much to my puzzlement, the following error:
> 12:09pm  up 252 days, 20:29,  1 user,  load average: 0.00, 0.00, 0.00
>51 processes: 50 sleeping, 1 running, 0 zombie, 0 stopped
>Floating point exception (core dumped)
>Why on earth would top crash with such an error? Any specific reasons this
>would happen? I've tried using 'ps', which seems to work fine.
>By the way, before anyone talks about intrusions, I've already had that
>thought (with top being trojanised, albeit malfunctioning). I've checked all
>the usuals - checksums for the binary, syslogs (or lack of), unusual
>listening ports, etc. and nothing is out of the ordinary. So, this doesn't
>appear to be the case. Must be just something ordinary like a bug...
>Basil Hussain
>Internet Developer, Kodak Weddings
>E-Mail: basil.hussain at
>Linux-PowerEdge mailing list
>Linux-PowerEdge at
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