linux-kernel - Re: [PATCH 1/1] sparc: task_cpu() for stopper thread on sparc32 returns 0

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Message-Id: <20120419.235602.266003767868541080.davem@davemloft.net>
Date:	Thu, 19 Apr 2012 23:56:02 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	yong.zhang0@...il.com
Cc:	sam@...nborg.org, konrad@...sler.com, a.p.zijlstra@...llo.nl,
	mingo@...e.hu, linux-kernel@...r.kernel.org,
	sparclinux@...r.kernel.org, daniel@...sler.com
Subject: Re: [PATCH 1/1] sparc: task_cpu() for stopper thread on sparc32
 returns 0

From: Yong Zhang <yong.zhang0@...il.com>
Date: Fri, 20 Apr 2012 11:36:34 +0800

> diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
> index 1210fde..bb017e7 100644
> --- a/arch/sparc/kernel/leon_smp.c
> +++ b/arch/sparc/kernel/leon_smp.c
> @@ -78,6 +78,8 @@ void __cpuinit leon_callin(void)
>  	local_flush_tlb_all();
>  	leon_configure_cache_smp();
>  
> +	notify_cpu_starting(cpuid);
> +

This is the most reasonable theory I've seen for this
problem :-)

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