Is UN state and D state in Linux processes are same?

I want to understand is the UN and D process state is the same? During the analysis of vmcore (crash dump) I have found lots of UN state processes. And when I googled it I hardly found any document on the UN state but found D state document. Can someone please let me know if UN and D state is the same? OS is Redhat 7 104 2 6 ffff8817ee65a400 **UN** 0.0 0 0 [sync_supers] 14678 1 9 ffff8810854d8440 **UN** 0.1 535472 157188 ohasd.bin 14803 1 20 ffff8828b6ebe5c0 **UN** 0.0 372100 34420 evmd.bin