From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757141Ab2DTD4V (ORCPT ); Thu, 19 Apr 2012 23:56:21 -0400 Received: from shards.monkeyblade.net ([198.137.202.13]:56785 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757049Ab2DTD4U (ORCPT ); Thu, 19 Apr 2012 23:56:20 -0400 Date: Thu, 19 Apr 2012 23:56:02 -0400 (EDT) Message-Id: <20120419.235602.266003767868541080.davem@davemloft.net> To: yong.zhang0@gmail.com Cc: sam@ravnborg.org, konrad@gaisler.com, a.p.zijlstra@chello.nl, mingo@elte.hu, linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, daniel@gaisler.com Subject: Re: [PATCH 1/1] sparc: task_cpu() for stopper thread on sparc32 returns 0 From: David Miller In-Reply-To: <20120420033634.GA13068@zhy> References: <1334827362-3434-1-git-send-email-konrad@gaisler.com> <20120419153428.GB1120@merkur.ravnborg.org> <20120420033634.GA13068@zhy> X-Mailer: Mew version 6.4 on Emacs 23.3 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.6 (shards.monkeyblade.net [198.137.202.13]); Thu, 19 Apr 2012 20:56:04 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yong Zhang 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 :-)