Description of problem:
When issuing a reboot, or halt the system kills the S01reboot process and never completes a reboot or shutdown.

Version-Release number of selected component (if applicable):
initscripts-9.03.38-1.el6_4.2.x86_64

How reproducible:
Reboot a nfsroot system, bind mounts for RW parts of the FS may or may not be required to reproduce.

Steps to Reproduce:
1. reboot
2.
3.

Actual results:
system hangs after trying to umount filesystems

Expected results:
system reboots or halts

Additional info:
The issue appears to be in /etc/init.d/functions in the __umount_loop() function.

This line appears to be the culprit that kills S01reboot:
fstab-decode /sbin/fuser -m $remaining 2>/dev/null  | sed -e "s/\b$$\b//" | xargs kill $sig >/dev/null

fstab-decode /sbin/fuser -m $remaining reports back two copies of the scripts PID and the sed command only removes the first. Changing the regex for sed to "s/\b$$\b//g" resolves the issue, but there may be other issues in the function that are resulting in this being a problem.