Re: [PATCH] disable non-boot CPUs before poweroff

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From: Thomas Gleixner <tglx@...>

To: Rafael J. Wysocki <rjw@...>

Cc: Mark Lord <lkml@...>, Len Brown <lenb@...>, Linux Kernel <linux-kernel@...>, <simon.derr@...>

Subject: Re: [PATCH] disable non-boot CPUs before poweroff

Date: Friday, September 28, 2007 - 11:02 am

On Fri, 2007-09-28 at 17:05 +0200, Rafael J. Wysocki wrote:
quoted text> >  	if (pm_power_off_prepare)
> >  		pm_power_off_prepare();
> >  	sysdev_shutdown();
> > +	disable_nonboot_cpus();
> 
> Before sysdev_shutdown(), please.
> 
> sysdev_shutdown() may touch things that belong to CPU0.

Damn, you're right. Missed that.

	tglx




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Messages in current thread:

Problems with SMP & ACPI powering off, Mark Lord, (Thu Sep 27, 5:29 pm)

Re: Problems with SMP & ACPI powering off, Rafael J. Wysocki, (Thu Sep 27, 6:00 pm)

Re: Problems with SMP & ACPI powering off, Len Brown, (Fri Sep 28, 12:57 am)

Re: Problems with SMP & ACPI powering off, Rafael J. Wysocki, (Fri Sep 28, 8:55 am)

Re: Problems with SMP & ACPI powering off, Mark Lord, (Fri Sep 28, 9:22 am)

Re: Problems with SMP & ACPI powering off, Rafael J. Wysocki, (Fri Sep 28, 9:44 am)

Re: Problems with SMP & ACPI powering off, Mark Lord, (Fri Sep 28, 9:46 am)

[PATCH] disable non-boot CPUs before poweroff, Mark Lord, (Fri Sep 28, 9:52 am)

Re: [PATCH] disable non-boot CPUs before poweroff, Thomas Gleixner, (Fri Sep 28, 10:55 am)

[PATCH] (repost) Fix SMP poweroff hangs, Mark Lord, (Fri Sep 28, 3:53 pm)

Re: [PATCH] (repost) Fix SMP poweroff hangs, Santiago Garcia Mantinan, (Sun Sep 30, 5:00 am)

Re: [PATCH] (repost) Fix SMP poweroff hangs, Mark Lord, (Sun Sep 30, 1:21 pm)

Re: [PATCH] (repost) Fix SMP poweroff hangs, Santiago Garcia Mantinan, (Sun Sep 30, 1:54 pm)

Re: [PATCH] (repost) Fix SMP poweroff hangs, Rafael J. Wysocki, (Mon Oct 1, 4:05 pm)

Re: [PATCH] (repost) Fix SMP poweroff hangs, Santiago Garcia Mantinan, (Mon Oct 1, 6:38 pm)

Re: [PATCH] (repost) Fix SMP poweroff hangs, Mark Lord, (Sun Sep 30, 2:47 pm)

Re: [PATCH] (repost) Fix SMP poweroff hangs, Santiago Garcia Mantinan, (Sun Sep 30, 4:03 pm)

Re: 32-bit Athlon X2 won't poweroff (was: Fix SMP poweroff..., Mark Lord, (Sun Sep 30, 6:52 pm)

Re: 32-bit Athlon X2 won't poweroff (was: Fix SMP poweroff..., Santiago Garcia Mantinan, (Mon Oct 1, 12:19 pm)

Re: 32-bit Athlon X2 won't poweroff , Mark Lord, (Mon Oct 1, 12:37 pm)

Re: 32-bit Athlon X2 won't poweroff , Mark Lord, (Sun Sep 30, 6:56 pm)

Re: [PATCH] disable non-boot CPUs before poweroff, Rafael J. Wysocki, (Fri Sep 28, 11:05 am)

Re: [PATCH] disable non-boot CPUs before poweroff, Thomas Gleixner, (Fri Sep 28, 11:02 am)

Re: [PATCH] disable non-boot CPUs before poweroff, Mark Lord, (Fri Sep 28, 10:11 am)

Re: Problems with SMP & ACPI powering off, Mark Lord, (Thu Sep 27, 7:07 pm)

Re: Problems with SMP & ACPI powering off, Mark Lord, (Thu Sep 27, 5:30 pm)

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