linux-kernel - Re: 2.6.23-rc8-mm2: problems on HP nx6325

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Date:	Thu, 27 Sep 2007 17:49:26 +0200
From:	Thomas Gleixner <tglx@...utronix.de>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.23-rc8-mm2: problems on HP nx6325

On Thu, 2007-09-27 at 17:59 +0200, Rafael J. Wysocki wrote:
> > 2) CPU hotplug is busted (onlining of CPU1 kills the kernel), probably due to
> >    the same issue that I'm having with the -hrt version of 2.6.23-rc8 (we're
> >    debugging it right now)
> 
> This one is fixed by the following patch:
> 
> ---
> From: Rafael J. Wysocki <rjw@...k.pl>
> 
> Fix CPU hotplug breakage on HP nx6325 and similar boxes caused by a reference
> to disable_apic_timer (labeled as __initdata) from the CPU initialization code.
> 
> Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>

Doh, I knew I blew it.

Good catch, thanks,

	tglx

> ---
>  arch/x86_64/kernel/apic.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Index: linux-2.6.23-rc8-mm2/arch/x86_64/kernel/apic.c
> ===================================================================
> --- linux-2.6.23-rc8-mm2.orig/arch/x86_64/kernel/apic.c
> +++ linux-2.6.23-rc8-mm2/arch/x86_64/kernel/apic.c
> @@ -42,7 +42,7 @@
>  
>  int apic_verbosity;
>  static int apic_calibrate_pmtmr __initdata;
> -int disable_apic_timer __initdata;
> +int disable_apic_timer __cpuinitdata;
>  
>  /* Local APIC timer works in C2? */
>  int local_apic_timer_c2_ok;

-
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