on boot, access beyond end of device

[Mike -- EMAIL IGNORED]

My minimal FC7 box has 125M ram, 20G hard drive, 400 MHZ. I have been 
successfully using it for a web server. Recently it has been generating
a huge number of:

   attempt to access beyond end of device

Below are some messages produced on a reboot showing the problems.  I
note that df shows no sda2.  After suggestions on a previous thread,
I ran memory and disk tests, and found no problems.

Thanks for your assistance.

Mike.

--

Feb 25 16:39:54 mbrc20 kernel:  sda: sda1 sda2
Feb 25 16:39:54 mbrc20 kernel:  sda: p2 exceeds device capacity
Feb 25 16:39:54 mbrc20 kernel: sd 0:0:0:0: [sda] Attached SCSI disk
Feb 25 16:39:54 mbrc20 kernel: scsi 0:0:1:0: Direct-Access     IOMEGA   
ZIP 100          14.A PQ: 0 ANSI: 5
Feb 25 16:39:54 mbrc20 kernel: sd 0:0:1:0: [sdb] Attached SCSI removable 
disk
Feb 25 16:39:54 mbrc20 kernel: scsi 1:0:0:0: CD-ROM            PLEXTOR  
CD-R   PX-W2410A 1.02 PQ: 0 ANSI: 5
Feb 25 16:39:54 mbrc20 kernel: scsi 1:0:1:0: CD-ROM            NEC      
CD-ROM DRIVE:28D 3.04 PQ: 0 ANSI: 5
Feb 25 16:39:54 mbrc20 kernel: device-mapper: ioctl: 4.11.0-ioctl 
(2006-10-12) initialised: dm-devel at redhat.com
Feb 25 16:39:54 mbrc20 kernel: attempt to access beyond end of device
Feb 25 16:39:54 mbrc20 kernel: sda: rw=0, want=40017743, limit=39062500
Feb 25 16:39:54 mbrc20 kernel: attempt to access beyond end of device
Feb 25 16:39:54 mbrc20 kernel: sda: rw=0, want=40017743, limit=39062500
Feb 25 16:39:54 mbrc20 kernel: attempt to access beyond end of device
Feb 25 16:39:54 mbrc20 kernel: sda: rw=0, want=39923925, limit=39062500
Feb 25 16:39:54 mbrc20 kernel: Buffer I/O error on device dm-1, logical 
block 131056
Feb 25 16:39:54 mbrc20 kernel: attempt to access beyond end of device
Feb 25 16:39:54 mbrc20 kernel: sda: rw=0, want=39923925, limit=39062500
Feb 25 16:39:54 mbrc20 kernel: Buffer I/O error on device dm-1, logical 
block 131056