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I have a clean install of 13.10 using the 3.12 kernel. When I shutdown or restart the process hangs. I press a key and I see:

**Killing all remaining processes .......      [fail]** (fail is in red)

This is followed by more info (sometime referring to nmdispatcher or modem and always ends:

mount:/ is busy

will now restart (or halt as the case may be)

Then nothing else happens the process hangs there, power on my PC (Dell 5150 desktop) remains on and I need to do a "hard reset" to turn my PC off.

I have seen relatively similar problems but none match mine exactly, I have attempted using:

sudo shutdown -P now

or

sudo shutdown -H now

But the results are the same.

I am concerned that this unclean shutdown may cause problems and I would like to know how to solve the problem. Can anybody help me? I am not too experienced with Ubuntu and I'm stuck... thanks

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Please see the answer to this question on how to troubleshoot slow shutdowns. Then report back what is that misbehaving application which won't terminate. –  falconer Dec 17 '13 at 18:30
    
Ok, followed the procedures and reading through the crash report I see pci_devices does not terminate at computer shutdown –  welfare Dec 17 '13 at 20:22
    
That looks like hardware/kernel related. Have you tried this ? –  falconer Dec 17 '13 at 21:31
    
Yes I tried the GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force" part of that solution, I don't have an NVIDIA card so didn't follow the rest of it: no change. I even did some reading around and thought it might be a kernel issue so I only updated to the 3.12 kernel yesterday before posting but still made no difference. –  welfare Dec 18 '13 at 16:40

1 Answer 1

You probably have tried this one but, since you haven't mentioned that - try sudo reboot?

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Thanks for the suggestion but, yes when I tried it I got the same result. –  welfare Dec 17 '13 at 20:04

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