Linux VM high CPU usage


I have a linux VM (Mandriva 2006) that was built from scratch (not P2V).  Every Sunday at 04:00 AM the X process starts to use 90% or more of the CPU.  There is no crontab for root (it's the only user of the machine). What can cause that ?  I  reboot he VM and it's normal till the next Sunday.
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colinvannConnect With a Mentor Commented:
Hi there,

This sounds like a systemwide cron entry that is set to run weekly.

The system wide crontab file is /etc/crontab. Within this file (if it is still the default) you will see a line:
 22 4 * * 0 root run-parts /etc/cron.weekly

This is telling the system to go through the /etc/cron.weekly directory and run each script it finds within it.

So it's probably one of the scripts in there.

A good candidate to look at disabling is the 00-makewhatis script. This app, reads all the man pages and updates the whatis database. the whatis database is there to you can search the man pages quickly.

So unless you have installed anything new on your system, the man pages will not have changed and it is there for a waist to run this.

If you like this feature, you can just run
  makewhatis &
after you install something.

Sounds like some kind of 'maintenance' . See if you can set up a Process logger for around that time.
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