linux-kernel - Re: mtrr failure, 3.1-rc1

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Message-ID: <4E56A6D7.2060603@fastmail.fm>
Date:	Thu, 25 Aug 2011 21:47:35 +0200
From:	anders eriksson <aeriksson@...tmail.fm>
To:	Tejun Heo <tj@...nel.org>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Peter Anvin <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>,
	Sergei Shtylyov <sshtylyov@...mvista.com>,
	linux-kernel@...r.kernel.org
Subject: Re: mtrr failure, 3.1-rc1

On 2011-08-25 18:46, Tejun Heo wrote:
> Anders, if your kernel didn't have SMP turned on, can you please
> verify the following patch fixes the problem?
>
> Thanks.
>
> diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
> index 08119a3..6b96110 100644
> --- a/arch/x86/kernel/cpu/mtrr/main.c
> +++ b/arch/x86/kernel/cpu/mtrr/main.c
> @@ -149,7 +149,6 @@ struct set_mtrr_data {
>    */
>   static int mtrr_rendezvous_handler(void *info)
>   {
> -#ifdef CONFIG_SMP
>   	struct set_mtrr_data *data = info;
>
>   	/*
> @@ -171,7 +170,6 @@ static int mtrr_rendezvous_handler(void *info)
>   	} else if (mtrr_aps_delayed_init || !cpu_online(smp_processor_id())) {
>   		mtrr_if->set_all();
>   	}
> -#endif
>   	return 0;
>   }
>
Tested. Works as expected. Thanks!

-A
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