Leitura de [ 1 ]
None of the files in /proc are really there--they're all, "pretend," files made up by the kernel, to give you information about the system and don't take up any hard disk space.
/proc/kcore is like an "alias" for the memory in your computer. Its size is the same as the amount of RAM you have, and if you read it as a file, the kernel does memory reads.
Além disso, é relatado para mostrar um tamanho maior do que a memória física instalada no computador e (é relatado para ser capaz de) chegar a resultar tão grande quanto a memória endereçável (128TB!). [ 2 ]
I have seen a few places on the web that say it is actually the size of the maximum memory mapping of the system, so for my arch-64 system it is 128TB! Of course, it really isn't a "size", just a view.
parece que você realmente precisa pular em um backup: -)