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#1 2011-02-08 00:57:02

Registered: 2011-01-11
Posts: 12

Power off occasinally freezes

I'm not sure if this is the right place to put it, but I think it is a kernel problem.

Sometimes, when I turn off my laptop, it freezes during power-off.  I see the usual messages about stopping daemons and other processes, and then when it displays the [Power Off] message (I think that is what it says), it just hangs until I force a power down (by holding down the power button).  This is terribly annoying, and I would really like to fix it.  I am willing to recompile the kernel, but all my previous attempts have been unbootable (probably because I accedently removed a module I needed).  My uname command gives:
Linux [hostname] 2.6.37-ARCH #1 SMP PREEMPT [DATE] x86_64 Intel(R) Core(TM)2 Duo CPU T5800 @ 2.00GHz GenuineIntel GNU/Linux


#2 2011-02-08 08:14:57

From: Bristol, UK
Registered: 2009-08-29
Posts: 63

Re: Power off occasinally freezes

I have also been experiencing strange shutdown issues since 2.6.37. If I leave it long enough it gives me a message something like this:


note: migration/1[8] exited with preempt_count 2

WARNING: at kernel/watchdog.c:227 watchdog_overflow_callback+0x...

Hardware name: Aspire 1420p

Watchdog detected hard LOCKUP on cpu 0

Modules: ...<all modules listed here>"


I would appreciate any input on this issue. Thanks.


#3 2011-02-08 14:13:33

From: Brisbane, Australia
Registered: 2010-02-14
Posts: 1,337

Re: Power off occasinally freezes
I have 2.6.37 installed on 5 machines -- shutdown works fine on 4 of them but always hangs on a dell inspiron 1525


#4 2011-02-08 22:18:38

From: Poland
Registered: 2010-10-11
Posts: 19

Re: Power off occasinally freezes

Same problem with my ThinkPad R61 - CPU icon disappears and it hangs.


#5 2011-02-10 18:02:32

Registered: 2009-01-18
Posts: 33

Re: Power off occasinally freezes

I used to have the same problem on my Atom 330 machine. Turning off hyper-threading in BIOS did the trick for me. Not a long-term solution, but at least my server reboots properly now smile


#6 2011-02-10 20:41:06

Registered: 2009-10-13
Posts: 19

Re: Power off occasinally freezes

skunktrader wrote:

but always hangs on a dell inspiron 1525

Yep, I have the same problem on my dell inspiron 1525.


#7 2011-02-10 22:12:30

From: Aethyr
Registered: 2009-03-22
Posts: 994

Re: Power off occasinally freezes

Hmm, I haven't observed it yet on an Core2 duo P7350. Here is some additional info, suggesting that it's a problem with putting CPU offline: I wonder what happens if one disables the CONFIG_LOCKUP_DETECTOR parameter.

Arch Linux is more than just GNU/Linux -- it's an adventure
pkill -9 systemd


#8 2011-02-12 07:06:36

Registered: 2011-02-12
Posts: 38

Re: Power off occasinally freezes

Hi there, I got exactly the same problem with my laptop. running with root "shutdown -h now" freezes during the Power Off output 99% of the time. Checked the loggs and dmesg but cannot find anything.
Running with Arch Linux 2.6.37-ARCH   (64bit) 
x86_64 Intel(R) Core(TM)2 Duo CPU T7100 @ 1.80GHz (HP Compaq 6501b)
Running with slim and openbox
lshw =

Did wait and got a traceback log.
First pic is a bit blurry could not get so much text =
Second pic whole traceback log =

My friend running same computer with Arch and Openbox have exactly same issues.

Last edited by Commander (2011-02-12 07:27:16)


#9 2011-02-12 22:28:25

Registered: 2010-11-06
Posts: 41

Re: Power off occasinally freezes

I am the "friend", and I'm getting the very same error (with the same hardware).
Tried without any modules, and without any daemons.

- I can now confirm that the problem disappears when using "nomodeset", although this kills Intel drivers.

Last edited by Glaucous (2011-02-12 22:35:23)


#10 2011-02-13 18:39:37

Forum Fellow
Registered: 2008-08-01
Posts: 5,026

Re: Power off occasinally freezes

Please continue here:

Closing to avoid duplication.

ᶘ ᵒᴥᵒᶅ


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