linux-kernel - Re: [git] CFS-devel, latest code

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Message-Id: <20070925014806.38b58cb7.akpm@linux-foundation.org>
Date:	Tue, 25 Sep 2007 01:48:06 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	vatsa@...ux.vnet.ibm.com
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Galbraith <efault@....de>,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	Dmitry Adamushko <dmitry.adamushko@...il.com>
Subject: Re: [git] CFS-devel, latest code

On Tue, 25 Sep 2007 14:13:27 +0530 Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com> wrote:

> On Tue, Sep 25, 2007 at 12:41:20AM -0700, Andrew Morton wrote:
> > This doornails the Vaio.  After grub handover the screen remains black
> > and the fan goes whir.
> > 
> > http://userweb.kernel.org/~akpm/config-sony.txt
> 
> This seems to be UP regression. Sorry abt that. I could recreate 
> the problem very easily with CONFIG_SMP turned off.
> 
> Can you check if this patch works? Works for me here.
> 
> --
> 
> Fix UP breakage.
> 
> Signed-off-by : Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
> 
> 
> ---
>  kernel/sched.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Index: current/kernel/sched.c
> ===================================================================
> --- current.orig/kernel/sched.c
> +++ current/kernel/sched.c
> @@ -1029,8 +1029,8 @@ static inline void __set_task_cpu(struct
>  {
>  #ifdef CONFIG_SMP
>  	task_thread_info(p)->cpu = cpu;
> -	set_task_cfs_rq(p);
>  #endif
> +	set_task_cfs_rq(p);
>  }
>  
>  #ifdef CONFIG_SMP

yup, that's a fix.  It was 15 minutes too late for rc8-mm1 though :(
-
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