where can I see the improvement/differences between the two kernels??
You can find info on kernel 3.3.1 here: http://www.kernel.org/pub/linux/kernel/v3.0/ChangeLog-3.3.1
thanks, I was looking for news on dmar/intel_iommu=off error but seems not resolved
A search did not turn up anything definitive, but kernel 3.4-rc1 is out, so perhaps it will be placed into there, but don’t know that for sure.