Comment 2 for bug 1061639

On last shutdown in verbose mode, i've seen one more issue:

During the last part of the shutdown process, a comment is written and says:
- trying to retrieve the remaining processes
- then, strangely, modemmanager is restarted and load its dozen drivers (got a modemmanager daily update "0.6.0.0.really-0ubuntu1). I've already seen randomly that drivers reload on shutdown in the past.
- and get : mount / is busy

With the next reboot, the booted partition has broken inodes:

oem@dub:~$ dmesg | grep orphan
[ 8.812542] EXT4-fs (sdb5): orphan cleanup on readonly fs
[ 8.819511] EXT4-fs (sdb5): ext4_orphan_cleanup: deleting unreferenced inode 400809
[ 8.819581] EXT4-fs (sdb5): 1 orphan inode deleted