Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262700AbVDAKsH (ORCPT ); Fri, 1 Apr 2005 05:48:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262699AbVDAKsH (ORCPT ); Fri, 1 Apr 2005 05:48:07 -0500 Received: from mx2.elte.hu ([157.181.151.9]:55996 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S262700AbVDAKsD (ORCPT ); Fri, 1 Apr 2005 05:48:03 -0500 Date: Fri, 1 Apr 2005 12:47:24 +0200 From: Ingo Molnar To: linux-kernel@vger.kernel.org Cc: Lee Revell , Rui Nuno Capela , Steven Rostedt Subject: [patch] Real-Time Preemption, -RT-2.6.12-rc1-V0.7.43-00 Message-ID: <20050401104724.GA31971@elte.hu> References: <20050325145908.GA7146@elte.hu> <20050331085541.GA21306@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050331085541.GA21306@elte.hu> User-Agent: Mutt/1.4.2.1i 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: 1666 Lines: 36 i have released the -V0.7.43-00 Real-Time Preemption patch, which can be downloaded from the usual place: http://redhat.com/~mingo/realtime-preempt/ this release too is a step towards more robustness. I found a bug that caused an infinite recursion and subsequent spontaneous reboot. The bug was once again related to lock->debug locks, so i decided to get rid of them altogether: from now on every lock in the -RT domain is debugged. To be able to use code that relies on incompatible properties of stock Linux semaphores (and rwsems), i've added a new compile-time semaphore-type mechanism that enables the easy switching from RT semaphores to stock semaphores. I've done this conversion for all subsystems that needed it - e.g. XFS, firewire, USB and SCSI. XFS seems to be working much better with this approach - BYMMV. but an unavoidable side-effect is that the whole codebase got turned upside down once again, so be careful and expect a few rough edges. In particular keep an eye on new compile-time warnings related to semaphores - code that gives a warning might build but it will almost certainly not work. to create a -V0.7.43-00 tree from scratch, the patching order is: http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.11.tar.bz2 http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.12-rc1.bz2 http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.12-rc1-V0.7.43-00 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/