[Bug 952315] [NEW] root filesystem not cleanly unmounted on reboot

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12.04 beta, updated as of 11March2012.

The message "mount: / busy" is seen as the system is shut down.   During
the reboot, messages from fsck regarding recovery of orphaned inodes are
seen in the console.   These messages appear in kern.log:

steve at precise:~$ grep -i orphan /var/log/kern.log
Mar 11 09:29:00 precise kernel: [   12.398913] EXT4-fs (sda1): orphan cleanup on readonly fs
Mar 11 09:29:00 precise kernel: [   12.399492] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 141316
Mar 11 09:29:00 precise kernel: [   12.409021] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 267343
Mar 11 09:29:00 precise kernel: [   12.409450] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 267325
Mar 11 09:29:00 precise kernel: [   12.410062] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 267319
Mar 11 09:29:00 precise kernel: [   12.410111] EXT4-fs (sda1): 4 orphan inodes deleted

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: upstart 1.4-0ubuntu8
ProcVersionSignature: Ubuntu 3.2.0-18.28-generic 3.2.9
Uname: Linux 3.2.0-18-generic i686
ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
Date: Sun Mar 11 09:23:29 2012
ExecutablePath: /sbin/init
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
SourcePackage: upstart
UpgradeStatus: Upgraded to precise on 2012-03-02 (8 days ago)

** Affects: upstart (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 precise
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root filesystem not cleanly unmounted on reboot
https://bugs.launchpad.net/bugs/952315
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