Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752567AbZGXOqz (ORCPT ); Fri, 24 Jul 2009 10:46:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752002AbZGXOqz (ORCPT ); Fri, 24 Jul 2009 10:46:55 -0400 Received: from casper.infradead.org ([85.118.1.10]:33742 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751565AbZGXOqz (ORCPT ); Fri, 24 Jul 2009 10:46:55 -0400 Subject: Re: report a bug about sched_rt From: Peter Zijlstra To: sen wang Cc: mingo@elte.hu, akpm@linux-foundation.org, kernel@kolivas.org, npiggin@suse.de, arjan@infradead.org, linux-arm-kernel@lists.arm.linux.org.uk, linux-kernel@vger.kernel.org In-Reply-To: <454c71700907240704o32dcdeb3v57845eb9472dd04c@mail.gmail.com> References: <454c71700907240357l61f5c4fajaca73db0fba7db8@mail.gmail.com> <1248437670.6987.26.camel@twins> <454c71700907240604h4673f117j8ed58b9f2ee54798@mail.gmail.com> <1248441290.6987.52.camel@twins> <454c71700907240626w127fd890ufa91ef90cbcaaa@mail.gmail.com> <1248442415.6987.56.camel@twins> <454c71700907240644h7469e2a5sfcb57f202a2e184d@mail.gmail.com> <1248443656.6987.61.camel@twins> <454c71700907240704o32dcdeb3v57845eb9472dd04c@mail.gmail.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Fri, 24 Jul 2009 16:48:29 +0200 Message-Id: <1248446909.6987.110.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 580 Lines: 14 On Fri, 2009-07-24 at 22:04 +0800, sen wang wrote: > just one question: > if cpu is free and there is running state task, how you do? > schedule the task up? or schedule idle task up? Well, when an RT group is over the bandwidth limit I don't consider them runnable. Therefore, failing to find any other tasks, we run the idle task. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/