Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262547AbUKXJOc (ORCPT ); Wed, 24 Nov 2004 04:14:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262556AbUKXJOO (ORCPT ); Wed, 24 Nov 2004 04:14:14 -0500 Received: from mx1.elte.hu ([157.181.1.137]:36551 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S262547AbUKXJOF (ORCPT ); Wed, 24 Nov 2004 04:14:05 -0500 Date: Wed, 24 Nov 2004 11:16:26 +0100 From: Ingo Molnar To: linux-kernel@vger.kernel.org Cc: Lee Revell , Rui Nuno Capela , Mark_H_Johnson@Raytheon.com, "K.R. Foley" , Bill Huey , Adam Heath , Florian Schmidt , Thomas Gleixner , Michal Schmidt , Fernando Pablo Lopez-Lezcano , Karsten Wiese , Gunther Persoons , emann@mrv.com, Shane Shrybman , Amit Shah , Esben Nielsen Subject: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.30-10 Message-ID: <20041124101626.GA31788@elte.hu> References: <20041111144414.GA8881@elte.hu> <20041111215122.GA5885@elte.hu> <20041116125402.GA9258@elte.hu> <20041116130946.GA11053@elte.hu> <20041116134027.GA13360@elte.hu> <20041117124234.GA25956@elte.hu> <20041118123521.GA29091@elte.hu> <20041118164612.GA17040@elte.hu> <20041122005411.GA19363@elte.hu> <20041123175823.GA8803@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041123175823.GA8803@elte.hu> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2090 Lines: 53 i have released the -V0.7.30-10 Real-Time Preemption patch, which can be downloaded from the usual place: http://redhat.com/~mingo/realtime-preempt/ this is a fixes-only release. the most important fixes are the ones to the priority inheritance logic (affecting the latency of RT tasks), discovered and reported by Esben Nielsen. I also found two more PI bugs running the new pi_test2 code from Esben. Changes since -V0.7.30-9: - PI fixes: - the waiter->prio field caused wrong priority settings upon unlock, resulting in PI bugs in the nested-locking case. - use rt_task() when determining PI tasks, not p->policy. - in the blocking-on-blocked-task nesting case both promote now-RT tasks to the pi_waiters list and queue them to the head of the wait list, and demote now-non-RT tasks from the pi_waiters list and queue them to the tail of the wait list. - PI-debugging blocker device update from Esben Nielsen - module build fix: export user_trace_stop symbol, this fixes the error reported by Florian Schmidt - tracer fix: in the default !freerunning tracing mode, if the trace buffer overflows (this is relatively rare, but can happen) then the tracer overwrote kernel memory that leads to lockups/kernel crashes. Maybe this bug was also the source of the truncated trace bug reported by Mark H. Johnson? - reduce tracing overhead within schedule() when !tracing_enabled. to create a -V0.7.30-10 tree from scratch, the patching order is: http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.9.tar.bz2 http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.10-rc2.bz2 http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc2/2.6.10-rc2-mm2/2.6.10-rc2-mm2.bz2 http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.10-rc2-mm2-V0.7.30-10 Ingo - 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/