[CentOS] swap_free messages in log

This morning I noticed the following message in my log file.

swap_free: bad swap file entry 10000000 swap_free: bad swap file entry 20000000 swap_free: bad swap file entry 10000000 swap_free: bad swap file entry 20000000 a few more times...

After rebooting I no longer see it. I have an intel 865 motherboard, 2.4 celeron, 2 - 300GIG seagate sata drives as software RAID-1.

I have had to reboot the machine sometimes but there were never any messages on the console or the log files.

Before my 300GIG drives I used to run 2-120GIG drives and had the same problem. An occasional reboot fixed it. I got new drives and I still have some issue?

Any thoughts on something to try? Thanks.

Jerry