Actually I have been noticing frequent crashes (kernel panic) although I am not certain if this is directly attributed to the Virtual Machines / backports. Does anyone else experience this problem?
Off topic: Never saw a kernel panic using Linux ever fingers crossed.
I am not sure of your reasons for this. More information is needed to know why.
I have confirmed that this is not directly attributed to KVM or KVM backports. Will report back when I learn more
EDIT: this seems to have to do with grsecurity patched kernel