I had a lot of instability until I upgraded to a newer vm kernel. I was on 2.6.38 fedora 64bit vm and it would crash once a day now I am on 2.6.40 and it has

I had a lot of instability until I upgraded to a newer vm kernel. I was on 2.6.38 fedora 64bit vm and it would crash once a day now I am on 2.6.40 and it has been stable for 50 days