Very slow restart/shutdown time at random (but very often)

[Ivan Danov]

When trying to restart, very often the time for shutting down the system goes beyond 10-15 seconds and more. I have tried to go to the menu and press restart again (some seconds after the first pressing), the system restarts immediately. That happens with no pattern occurring.

The only reproducible case is only when I try restarting soon after booting (after all programs seem to be loaded), a window prompting for entering the login keyring password appears and the system does not restart until the password is entered.

I have tried several times to reboot from terminal, but the problem did not appear. However, it might be because of the seemingly random nature of the event, since I could not find any pattern for its occurring.

I have tried to restart after disabling networks couple of times and it restarted on time. However, it needs to be tested more. I have looked at this issue: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1061639 , but it does not provide any solution to my problem. I suspect it might be network-manager related because of the discussion there.

I am using Samsung Series 9 NP900X4C-A04US, Ubuntu 12.10 amd64. I have tried the kernel 3.8-rc1 and the bug appears again. Therefore I have marked it as kernel-bug-exists-upstream.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-25-generic 3.5.0-25.39
ProcVersionSignature: Ubuntu 3.5.0-25.39-generic 3.5.7.4
Uname: Linux 3.5.0-25-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ivan 2220 F.... pulseaudio
Date: Wed Mar 6 21:59:05 2013
HibernationDevice: RESUME=UUID=4def1db0-01fa-4505-8eb6-97442bc58e4a
InstallationDate: Installed on 2013-02-28 (5 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-25-generic root=UUID=4936fe74-689d-4768-951a-d793b24ad3cc ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-3.5.0-25-generic N/A
 linux-backports-modules-3.5.0-25-generic N/A
 linux-firmware 1.95
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/08/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P04AAC
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAC:bd08/08/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 900X3C/900X3D/900X4C/900X4D
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

[Brad Figg (brad-figg)]

This change was made by a bot.

[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 v3.9 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/v3.9-rc1-raring/

[Ivan Danov (danov)]

I have tested it before with 3.8, now I have tested it with 3.9 as suggested in #3 - the problem still remains. The computer waited 20 seconds after the press of the restart button and only then the Ubuntu logo with the dots counting appeared. Until then, the system looked like no restart was invoked.

[penalvch (penalvch)]

Ivan Danov, could you please provide the full computer model as noted on the sticker (ex. 900X3C-A04)?

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]