From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761467AbXGVRdO (ORCPT ); Sun, 22 Jul 2007 13:33:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755653AbXGVRc5 (ORCPT ); Sun, 22 Jul 2007 13:32:57 -0400 Received: from homer.mvista.com ([63.81.120.158]:50815 "EHLO gateway-1237.mvista.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755530AbXGVRc5 (ORCPT ); Sun, 22 Jul 2007 13:32:57 -0400 Subject: [PATCH -rt] drop spurious rcu unlock From: Daniel Walker To: mingo@elte.hu Cc: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Content-Type: text/plain Date: Sun, 22 Jul 2007 10:22:37 -0700 Message-Id: <1185124958.2573.13.camel@imap.mvista.com> Mime-Version: 1.0 X-Mailer: Evolution 2.10.3 (2.10.3-1.fc7) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Strange rcu_read_unlock() which causes a imbalance, and boot hang.. I didn't notice a reason for it, and removing it allows my system to make progress. This should go into the preempt-realtime-sched.patch Signed-Off-By: Daniel Walker Index: linux-2.6.22.1/kernel/sched.c =================================================================== --- linux-2.6.22.1.orig/kernel/sched.c 2007-07-22 16:47:37.000000000 +0000 +++ linux-2.6.22.1/kernel/sched.c 2007-07-22 16:16:48.000000000 +0000 @@ -4900,7 +4900,6 @@ asmlinkage long sys_sched_yield(void) * no need to preempt or enable interrupts: */ spin_unlock_no_resched(&rq->lock); - rcu_read_unlock(); __schedule();