The solution in the other topic.
In brief: install latest rsyslog from
http://koji.fedoraproject.org/koji/buildinfo?buildID=155653
If you need to boot in OS, then:
1. Catch grub menu
2. Edit kernel string and add "single" or "1" to the end of the string
3. Press "b" to boot in to 1-st level
4. Switch off this service "chkconfig rsyslog off"
5. Continue to boot to necessary level "init 3" or "init 5"
6. Get latest rsyslog package and install it "yum --nogpgcheck localinstall ./rsyslog...."
7. Switch on "rsyslog" service "su -c "chkconfig rsyslog on" and "su -c service rsyslog start"
That's all