Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265234AbUJNOh4 (ORCPT ); Thu, 14 Oct 2004 10:37:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265331AbUJNOdx (ORCPT ); Thu, 14 Oct 2004 10:33:53 -0400 Received: from mx1.elte.hu ([157.181.1.137]:38824 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S265234AbUJNOau (ORCPT ); Thu, 14 Oct 2004 10:30:50 -0400 Date: Thu, 14 Oct 2004 16:31:31 +0200 From: Ingo Molnar To: linux-kernel@vger.kernel.org Cc: Lee Revell , Rui Nuno Capela , Mark_H_Johnson@Raytheon.com, "K.R. Foley" , Daniel Walker , Bill Huey , Andrew Morton , Adam Heath , Lorenzo Allegrucci , Dipankar Sarma Subject: [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U1 Message-ID: <20041014143131.GA20258@elte.hu> References: <20041011215909.GA20686@elte.hu> <20041012091501.GA18562@elte.hu> <20041012123318.GA2102@elte.hu> <20041012195424.GA3961@elte.hu> <20041013061518.GA1083@elte.hu> <20041014002433.GA19399@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041014002433.GA19399@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: 2218 Lines: 55 i have released the -U1 PREEMPT_REALTIME patch: http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc4-mm1-U1 this is a strict bugfixes-only release. With -U1 i cannot reproduce any of the bugs on my testsystems anymore, but take care nevertheless, this is still experimental code. Changes since -U0: - bugfix: fixed the highmem related crash reported by Adam Heath and i think this could also fix the crash reported by Mark H Johnson. - bugfix: fixed a number of networking related soft-lockups, caused by a deadlock scenarios in the ipv4, netfilter and net-xmit locking code. This could fix the lockup reported by Lorenzo Allegrucci. - bugfix: enable interrupts in the int3 handler - gdb will otherwise trigger a kernel debug message. - cleanup: reworked the RCU API wrappers, we now have the following variants: rcu_read_[un]lock_spin(&spinlock) rcu_read_[un]lock_bh_spin(&spinlock) rcu_read_[un]lock_sem(&semaphore) this change was necessary for the network locking fixes. - debugging helper: SysRq-T will now print the stacktrace of currently running tasks too. (They might be a bit unreliable occasionally but very useful to debug deadlocks.) - configurability fix: disabled the /proc/kernel/softirq_preemption and hardirq_preemption runtime flags (and the softirq-preempt= and hardirq-preempt= boot flags) if PREEMPT_REALTIME is enabled - in the fully preemptible model these must always be on. there are no known bugs at this moment, so please re-report any issues you might still encounter. to create a -U1 tree from scratch the patching order is: http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.8.tar.bz2 + http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.9-rc4.bz2 + http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc4/2.6.9-rc4-mm1/2.6.9-rc4-mm1.bz2 + http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc4-mm1-U1 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/