linux-kernel - Re: Common boot/shutdown issues with the latest 2.6.37 (Mostly Asus laptops)

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Date:	Mon, 31 Jan 2011 10:50:49 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Ozan Çağlayan <ozan@...dus.org.tr>
Cc:	Lionel Debroux <lionel_debroux@...oo.fr>,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	platform-driver-x86@...r.kernel.org, colin.king@...onical.com
Subject: Re: Common boot/shutdown issues with the latest 2.6.37 (Mostly Asus laptops)

On Monday, January 31, 2011, Ozan Çağlayan wrote:
> On 31.01.2011 00:48, Rafael J. Wysocki wrote:
> 
> > Does booting with "nolapic" help on all of the affected systems?
> >
> > Also, does disabling the CPUidle during boot help?
> >
> > Finally, is the problem reproducible with CONFIG_NO_HZ unset?
> 
> Well on two machines, nolapic cures the boot hang and on one machine it 
> cures the random shutdown hangs.
> 
> I'll compile a kernel with CONFIG_NO_HZ to see what happens but how do I 
> disable cpuidle during boot? I've checked the kernel-parameters.txt but 
> there's no cpuidle related boot parameter there.

Booting with intel_idle.max_cstate=0 should do the trick.

Thanks,
Rafael
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