error

mv: error reading '//proc/12228/task/12228/mem': Input/output error
mv: failed to extend '/data/av/scan/proc/12228/task/12228/mem': Input/output error
mv: error reading '//proc/12228/task/12228/clear_refs': Invalid argument
mv: failed to extend '/data/av/scan/proc/12228/task/12228/clear_refs': Invalid argument
mv: cannot stat '//proc/12228/fd/3': No such file or directory
mv: cannot stat '//proc/12228/fdinfo/3': No such file or directory
mv: will not create hard link '/data/av/scan/proc/12228/net/stat' to directory '/data/av/scan/proc/1/task/1/net/stat'
mv: will not create hard link '/data/av/scan/proc/12228/net/netfilter' to directory '/data/av/scan/proc/1/task/1/net/netfilter'
mv: will not create hard link '/data/av/scan/proc/12228/net/rpc' to directory '/data/av/scan/proc/1/task/1/net/rpc'
mv: will not create hard link '/data/av/scan/proc/12228/net/nfsfs' to directory '/data/av/scan/proc/1/task/1/net/nfsfs'
mv: will not create hard link '/data/av/scan/proc/12228/net/dev_snmp6' to directory '/data/av/scan/proc/1/task/1/net/dev_snmp6'
mv: error reading '//proc/12228/mem': Input/output error
mv: failed to extend '/data/av/scan/proc/12228/mem': Input/output error
mv: error reading '//proc/12228/clear_refs': Invalid argument
mv: failed to extend '/data/av/scan/proc/12228/clear_refs': Invalid argument

https://askubuntu.com/questions/604918/cp-problems-with-copying-root