Description of problem:
tried to mount an nfs share like this:
sudo mount -t nfs nas:/data/ ~/nas/
SELinux is preventing rpc.statd from 'write' accesses on the file rpc.statd.pid.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that rpc.statd should be allowed write access on the rpc.statd.pid file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep rpc.statd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:rpcd_t:s0
Target Context                unconfined_u:object_r:var_run_t:s0
Target Objects                rpc.statd.pid [ file ]
Source                        rpc.statd
Source Path                   rpc.statd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-116.fc22.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.0.0-0.rc2.git0.1.fc22.x86_64 #1
                              SMP Tue Mar 3 21:24:17 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-03-11 15:10:28 CET
Last Seen                     2015-03-11 15:10:28 CET
Local ID                      fdd59843-44d4-43de-8fc4-e7e25608aad4

Raw Audit Messages
type=AVC msg=audit(1426083028.493:843): avc:  denied  { write } for  pid=7101 comm="rpc.statd" name="rpc.statd.pid" dev="tmpfs" ino=102698 scontext=system_u:system_r:rpcd_t:s0 tcontext=unconfined_u:object_r:var_run_t:s0 tclass=file permissive=0


Hash: rpc.statd,rpcd_t,var_run_t,file,write

Version-Release number of selected component:
selinux-policy-3.13.1-116.fc22.noarch

Additional info:
reporter:       libreport-2.4.0
hashmarkername: setroubleshoot
kernel:         4.0.0-0.rc2.git0.1.fc22.x86_64
type:           libreport

Potential duplicate: bug 750103