From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758754Ab3DYOXe (ORCPT ); Thu, 25 Apr 2013 10:23:34 -0400 Received: from relay.medianet-world.de ([213.157.0.172]:27931 "HELO relay.medianet-world.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1758137Ab3DYOXc convert rfc822-to-8bit (ORCPT ); Thu, 25 Apr 2013 10:23:32 -0400 thread-index: Ac5BwE/oNggxLG2tSiu4cOyNxJ2dLQ== Thread-Topic: [ANNOUNCE] 3.4.41-rt55-feat1 Content-Class: urn:content-classes:message Importance: normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.4913 From: "Tim Sander" To: "Sebastian Andrzej Siewior" Cc: "Steven Rostedt" , "LKML" , "RT" , "Thomas Gleixner" , "Carsten Emde" , "John Kacur" Subject: Re: [ANNOUNCE] 3.4.41-rt55-feat1 Date: Thu, 25 Apr 2013 16:22:26 +0200 Message-ID: <3603730.i3rZKahVeu@dabox> Organization: Hottinger Baldwin Messtechnik User-Agent: KMail/4.10.2 (Linux/3.8.0+; KDE/4.10.2; x86_64; ; ) In-Reply-To: <51792277.8000205@linutronix.de> References: <1366760662.9609.176.camel@gandalf.local.home> <2156546.QlsX0XyPQz@dabox> <51792277.8000205@linutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="us-ascii" X-OriginalArrivalTime: 25 Apr 2013 14:22:26.0968 (UTC) FILETIME=[4FDC3180:01CE41C0] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Sebastian > > I just wanted to test this release but it fails to compile with the the > > following error: > > > > kernel/hrtimer.c: In function '__hrtimer_start_range_ns': > > kernel/hrtimer.c:1045:7: error: implicit declaration of function > > 'hrtimer_rt_defer' > > kernel/hrtimer.c: At top level: > > kernel/hrtimer.c:1416:12: error: static declaration of 'hrtimer_rt_defer' > > follows non-static declaration > > kernel/hrtimer.c:1045:10: note: previous implicit declaration of > > 'hrtimer_rt_defer' was here > > > > The kernelconfig is attached. > > You do not have CONFIG_HIGH_RES_TIMERS defined. Is this on purpose? Yes, it's an tradeoff to get lower latencies for our VII (Very Important Interrupt :-). The idea is from Thomas Gleixner: We have an regular interrupt and define our own timer where which we call after we have finished our VII handler. But normally the HR_TIMER is set. So we switched it off on this very purpose. As we also have also PREEMPT_RT_FULL set the proposed solution to allow only PREEMPT_RT_FULL with PREEMPT_RT_FULL set is not an option for us. Best regards Tim Hottinger Baldwin Messtechnik GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany | www.hbm.com Registered as GmbH (German limited liability corporation) in the commercial register at the local court of Darmstadt, HRB 1147 Company domiciled in Darmstadt | CEO: Andreas Huellhorst | Chairman of the board: James Charles Webster Als Gesellschaft mit beschraenkter Haftung eingetragen im Handelsregister des Amtsgerichts Darmstadt unter HRB 1147 Sitz der Gesellschaft: Darmstadt | Geschaeftsfuehrung: Andreas Huellhorst | Aufsichtsratsvorsitzender: James Charles Webster The information in this email is confidential. It is intended solely for the addressee. If you are not the intended recipient, please let me know and delete this email. Die in dieser E-Mail enthaltene Information ist vertraulich und lediglich fur den Empfaenger bestimmt. Sollten Sie nicht der eigentliche Empfaenger sein, informieren Sie mich bitte kurz und loeschen diese E-Mail.