From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965125AbVHPGgX (ORCPT ); Tue, 16 Aug 2005 02:36:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932607AbVHPGgX (ORCPT ); Tue, 16 Aug 2005 02:36:23 -0400 Received: from 213-239-205-147.clients.your-server.de ([213.239.205.147]:7335 "EHLO mail.tglx.de") by vger.kernel.org with ESMTP id S932605AbVHPGgX (ORCPT ); Tue, 16 Aug 2005 02:36:23 -0400 Subject: Re: [patch] Real-Time Preemption, -RT-2.6.13-rc4-V0.7.53-01, High Resolution Timers & RCU-tasklist features From: Thomas Gleixner Reply-To: tglx@linutronix.de To: george@mvista.com Cc: Ingo Molnar , Lee Revell , Ryan Brown , linux-kernel@vger.kernel.org, "Paul E. McKenney" In-Reply-To: <430127CC.5080102@mvista.com> References: <20050811110051.GA20872@elte.hu> <1c1c8636050812172817b14384@mail.gmail.com> <1123893158.12680.70.camel@mindpipe> <42FD4593.9030702@mvista.com> <20050814021258.GA25877@elte.hu> <20050815062934.GA5915@elte.hu> <430127CC.5080102@mvista.com> Content-Type: text/plain Organization: linutronix Date: Tue, 16 Aug 2005 06:36:35 +0000 Message-Id: <1124174195.23647.121.camel@tglx.tec.linutronix.de> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2005-08-15 at 16:39 -0700, George Anzinger wrote: > I haven't looked at this new code all that closely as yet. One thing I > did notice is that there is an assumption that the "timer being > delivered flag" can be shared between LR timers and HR timers. I > suspect this is wrong as the delivery code is in seperate threads (I > assume). This could lead to del_timer_async missing a timer. You're right, I found this yesterday night. Silly me. This happened when I moved the hr timers into the tvec_t_base_s structure due to Olegs changes to the timer_list and the deletion code. tglx