Readlink: permission denied

[JD]

fc16 - with latest updates.

Running lsof, I see a plethora of output like:

systemd       1         root  cwd   unknown    /proc/1/cwd (readlink: 
Permission denied)
systemd       1         root  rtd   unknown    /proc/1/root (readlink: 
Permission denied)
systemd       1         root  txt   unknown    /proc/1/exe (readlink: 
Permission denied)
systemd       1         root NOFD              /proc/1/fd (opendir: 
Permission denied)
kthreadd      2         root  cwd   unknown    /proc/2/cwd (readlink: 
Permission denied)
kthreadd      2         root  rtd   unknown    /proc/2/root (readlink: 
Permission denied)
kthreadd      2         root  txt   unknown    /proc/2/exe (readlink: 
Permission denied)
kthreadd      2         root NOFD              /proc/2/fd (opendir: 
Permission denied)
ksoftirqd     3         root  cwd   unknown    /proc/3/cwd (readlink: 
Permission denied)
ksoftirqd     3         root  rtd   unknown    /proc/3/root (readlink: 
Permission denied)
ksoftirqd     3         root  txt   unknown    /proc/3/exe (readlink: 
Permission denied)
ksoftirqd     3         root NOFD              /proc/3/fd (opendir: 
Permission denied)
migration     6         root  cwd   unknown    /proc/6/cwd (readlink: 
Permission denied)
migration     6         root  rtd   unknown    /proc/6/root (readlink: 
Permission denied)
migration     6         root  txt   unknown    /proc/6/exe (readlink: 
Permission denied)
migration     6         root NOFD              /proc/6/fd (opendir: 
Permission denied)
watchdog/     7         root  cwd/proc/6/cwd (readlink: Permission denied)
....etc

The full output of lsof | sort | uniq  is at
http://www.sendspace.com/file/0v2lgb

what is the consequence of these failures on the rest of the system?