SELinux is preventing systemd-readahe from 'write' accesses on the file /usr/bin/Xorg.

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

If you believe that systemd-readahe should be allowed write access on the Xorg 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 systemd-readahe /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:readahead_t:s0
Target Context                system_u:object_r:xserver_exec_t:s0
Target Objects                /usr/bin/Xorg [ file ]
Source                        systemd-readahe
Source Path                   systemd-readahe
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           xorg-x11-server-Xorg-1.9.99.1-4.20101201.fc15
Policy RPM                    selinux-policy-3.9.14-2.fc15
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 2.6.38-0.rc4.git0.2.fc15.x86_64 #1
                              SMP Tue Feb 8 04:08:32 UTC 2011 x86_64 x86_64
Alert Count                   5
First Seen                    Tue 15 Feb 2011 09:55:02 AM EST
Last Seen                     Tue 15 Feb 2011 11:38:07 AM EST
Local ID                      2dd509ad-6e3f-42d3-9cd7-cbb96e22dbdc

Raw Audit Messages
type=AVC msg=audit(1297787887.552:337): avc:  denied  { write } for  pid=599 comm="systemd-readahe" path="/usr/bin/Xorg" dev=dm-3 ino=369705 scontext=system_u:system_r:readahead_t:s0 tcontext=system_u:object_r:xserver_exec_t:s0 tclass=file


Hash: systemd-readahe,readahead_t,xserver_exec_t,file,write

audit2allow

#============= readahead_t ==============
allow readahead_t xserver_exec_t:file write;

audit2allow -R

#============= readahead_t ==============
allow readahead_t xserver_exec_t:file write;