From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751052AbZG2EZ3 (ORCPT ); Wed, 29 Jul 2009 00:25:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750974AbZG2EZ2 (ORCPT ); Wed, 29 Jul 2009 00:25:28 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.125]:53903 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750872AbZG2EZ1 (ORCPT ); Wed, 29 Jul 2009 00:25:27 -0400 Message-Id: <20090729042121.727652581@goodmis.org> User-Agent: quilt/0.46-1 Date: Wed, 29 Jul 2009 00:21:21 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Thomas Gleixner , Peter Zijlstra , Gregory Haskins Subject: [PATCH 0/2] [GIT PULL] sched: fixes for rt-migration-test failures Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ingo, We've been experiencing rt-migration-test failures http://rostedt.homelinux.com/code/rt-migrate-test.c Gregory Haskins and myself have been debugging this for several days. We found three bugs so far in the code that causes the failure of this test. The failure is that an RT task may not migrate properly and may wait behind a lower RT prio task for the migration. These two patches solve two of the bugs. There's also a bug that is triggered with RT_GROUP scheduling that we will look at later. The test can still fail after a long time running and we are still looking into other issues. But for now this solves two of those issues. Please pull the latest update tree, which can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git update Steven Rostedt (2): sched: check for pushing rt tasks after all scheduling sched: add new prio to cpupri before removing old prio ---- kernel/sched.c | 38 +++++++++++++++++++++++++++----------- kernel/sched_cpupri.c | 30 ++++++++++++++++-------------- 2 files changed, 43 insertions(+), 25 deletions(-) --