linux-kernel - Re: how to debug a kernel that does not power off?

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Date:	Fri, 26 Mar 2010 20:56:10 +0100
From:	Arnout Vandecappelle <arnout@...d.be>
To:	Ákos Maróy <akos@...oy.hu>
Cc:	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: how to debug a kernel that does not power off?

 Take a look at the pm_power_off functions in arch/x86/kernel/apm_32.c

 Regards,
 Arnout

On Wednesday 24 March 2010 00:44:30, Ákos Maróy wrote:
> Hi,
> 
> This might be a lame question, but: how would I debug a kernel that
> simply does not power off a machine? When powering off, on the console I
> get to the message: [...] Poweroff.
> 
> but then, the machine actually does not power off. This is an HP Envy 15
> laptop using an intel i7 CPU, and kernel 2.6.32.9.
> 
> I tried to read up on all sorts of documentation, but could not get more
> debug info out of the kernel :(
> 
> any pointers would be welcome..
> 
> 
> Akos
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Arnout Vandecappelle                               arnout at mind be
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