badblocks reporting different results each run?

[Michael D. Setzer II]

I have a system is showing different badblock reports for each 
run? Not sure why a block would show problem on one run, and 
then fine on another. 

Did a long smartctl selftest on the disk and it complete with no 
errors, but smartctl -l error /dev/sda does show ICRC errors.
badblocks doesn't report any errors on partition /dev/sda1 or 
/dev/sda3, but on the /dev/sda2 which is the LVM with root and 
swap. Also, see badblocks reporting different results on 
/dev/dm-0.

Have an image backup of disk from 12/16 that I have restored to a 
new disk on another machine, but have not yet had a chance to 
try swapping it this system. Full memtest scan shows no errors, 
and disk is only about 1 year old (if memory servers).  1T disk. 

Suggestions on other testing that might be done, or why 
badblocks would be reporting various errors. 

Thanks.

+----------------------------------------------------------+
  Michael D. Setzer II -  Computer Science Instructor      
  Guam Community College  Computer Center                  
  mailto:mikes at kuentos.guam.net                            
  mailto:msetzerii at gmail.com
  http://www.guam.net/home/mikes
  Guam - Where America's Day Begins                        
  G4L Disk Imaging Project maintainer 
  http://sourceforge.net/projects/g4l/
+----------------------------------------------------------+

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