Ubuntu 12.04 hangs during shut down

[jsmanian]

Hello,

     Yesterday I installed ubuntu 12.04 64bit version. I updated all packages up to date. I have an issue during shut down. It hangs on during shut down by showing this message.

Last few lines:
*All processes ended within 2 seconds [OK]
Modem-manager[715]: <info> Caught signal 15, shutting down...
Modem-manager[715]: <info> Modem /org/freedesktop/Modem-Manager/modems/1: state changed (registered ->disabled)
Modem-manager[715]: <info> (ttyACM0) closing serial port
Modem-manager[715]: <info> (ttyACM0) serial port closed
Modem-manager[715]: <info> Modem /org/freedesktop/Modem-Manager/modems/1: state changed (disabling -> disabling)

*Deconfiguring network interfaces ... [OK]
*Deactivating swap ... [OK]
umount: /run/lock: not mounted
*will now halt
[786:148677] power down

I am using internet through my mobile GPRS modem. It might be related to network manager.
Note: There is no issues in restarting the system. System hangs only on shut down.
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu15.1
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: subramanian 1576 F.... xfce4-volumed
                      subramanian 1618 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xa3220000 irq 48'
   Mixer name : 'Realtek ALC888'
   Components : 'HDA:10ec0888,80860002,00100001'
   Controls : 39
   Simple ctrls : 22
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=8c6f6b23-33c9-4b86-8381-dabe7c54c20e
InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3)
MarkForUpload: True
NonfreeKernelModules: nvidia
Package: modemmanager 0.5.2.0-0ubuntu2
PackageArchitecture: i386
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-35-generic root=UUID=71e2f686-8431-4428-bb50-f43a81e6a317 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-35-generic N/A
 linux-backports-modules-3.2.0-35-generic N/A
 linux-firmware 1.79.1
RfKill:

StagingDrivers: mei
Tags: precise staging precise
Uname: Linux 3.2.0-35-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 02/18/2008
dmi.bios.vendor: Intel Corp.
dmi.bios.version: DPP3510J.86A.0407.2008.0218.0923
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DG33FB
dmi.board.vendor: Intel Corporation
dmi.board.version: AAD81072-307
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrDPP3510J.86A.0407.2008.0218.0923:bd02/18/2008:svn:pn:pvr:rvnIntelCorporation:rnDG33FB:rvrAAD81072-307:cvn:ct3:cvr:

[jsmanian (jsmanian79)]

This is my first but report in launchpad. If any additional information is required, let me know. I will post it.
Thanks

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1024868/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[jsmanian (jsmanian79)]

By seeing the syslog, I selected modem manager that might be reason for hanging issue.

Thanks for pointing out the procedure to file the bug.

[jsmanian (jsmanian79)]

I tried the workarounds mentioned in this bug report.

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/985471 - coment #25

But none of them helped me to solve hanging issue.

Please let me know if any workaround to solve temporarily.

[Mathieu Trudel-Lapierre (cyphermox)]

How is it hanging? Is "power down" the last message you see on the screen? If so, then this would be a bug in the kernel that renders the code that is supposed to allow the system to power off by itself not working...

[jsmanian (jsmanian79)]

Yes. System is hanging by showing "power down" message. After that there is no response and hangs. I need to switch off the system by pressing power button only.

    If it is the kernel issue means, how it could be solved? I tried fresh installation of Mint 13 and xubuntu 12.04.1 also. Same issue happening.

Note: Now I am using xubuntu 12.04.1. But hanging issue is not solved.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[dino99 (9d9)]

on RR i386, i was having that hang due to : modem-manager "caught signal 15, shutting down ..."

As wicd is now installed by myself (tired of n-m), i've purged network-manager & network-manager-gnome; and now ubuntu can close without hanging.

[jsmanian (jsmanian79)]

I am using network manager for connecting through GSM mobile. I could not uninstall network manager.

 Is there any work around for issue?

[Marius B. Kotsbak (mariusko)]

Is it working better if you manually disconnect and disable mobile broadband in network manager menu before shutting down?

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1024868

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[jsmanian (jsmanian79)]

Hi Marius Kotsbak (mariusko) ,

    I tried all possible workarounds. I properly disconnect and removed the mobile from computer also. Still I am getting this hanging issue. But there is no issue in restart the machine.
 For your information, Now I am using Xubuntu 32bit version. But hanging issue is not solved.

[jsmanian (jsmanian79)]

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[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.8 kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc2-raring/

[dino99 (9d9)]

Have tested again with the latest kernel (3.8 from trunck) and get the same issue: hang a few seconds on modemmanager.

[jsmanian (jsmanian79)]

I updated my BIOS version to latest one. Luckily I can shut down the system without hanging issue. There is no hanging issue for last two days. I think that it might be specific hardware issue. But let me check for some time to find out hanging issue is coming back or not.

[dino99 (9d9)]

That issue still exist on RR i386 & network-manager, but not with wicd

see other related report:
https://bugs.launchpad.net/ubuntu/oneiric/+source/network-manager/+bug/869635

[penalvch (penalvch)]

jsmanian, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1024868/comments/39 regarding this being fixed with a BIOS update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.