From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932755Ab2LFOle (ORCPT ); Thu, 6 Dec 2012 09:41:34 -0500 Received: from lnx141.hrz.tu-darmstadt.de ([130.83.156.236]:40370 "EHLO lnx141.hrz.tu-darmstadt.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932736Ab2LFOlc (ORCPT ); Thu, 6 Dec 2012 09:41:32 -0500 X-Greylist: delayed 352 seconds by postgrey-1.27 at vger.kernel.org; Thu, 06 Dec 2012 09:41:32 EST From: Tim Sander Organization: Integrierte Schaltungen und Systeme To: Thomas Gleixner Subject: Re: [ANNOUNCE] 3.6.9-rt21 Date: Thu, 6 Dec 2012 15:35:35 +0100 User-Agent: KMail/1.13.5 (Linux/2.6.32-5-amd64; KDE/4.4.5; x86_64; ; ) Cc: LKML , "linux-rt-users" References: In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201212061535.37585.tstone@iss.tu-darmstadt.de> X-PMX-TU: seen v1.2 by 5.6.1.2065439, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2012.12.6.142718 X-PMX-RELAY: outgoing Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thomas > I'm pleased to announce the 3.6.9-rt21 release. 3.6.7-rt18, 3.6.8-rt19 > and 3.6.9-rt20 are not announced updates to the respective 3.6.y > stable releases without any RT changes There is some progress here. It boots but sometimes i see the backtrace below. Also: Has s.th. changed in respect to the modules. I have one module wich goes on an endless interrupt loop freezing the device. The driver works fine for 3.0 - 3.4 preempt rt kernels? This is a miscdev based driver. If someone is interested i can post the source over here. But unfortunatly i have not figured out why this thing goes to an endless interrupt. The identical driver works flawless on 3.4. As always i have some platform adaptation code applied but nothing serious/different from the 3.4 patches which work fine. Backtrace: [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0x18/0x1c) r6:c0327ca9 r5:00000da5 r4:00000000 r3:c7846080 [] (dump_stack+0x0/0x1c) from [] (warn_slowpath_common+0x54/0x6c) [] (warn_slowpath_common+0x0/0x6c) from [] (warn_slowpath_null+0x24/0x2c) r8:c03b0bc8 r7:c03c5f38 r6:c784e000 r5:60000013 r4:00000000 r3:00000009 [] (warn_slowpath_null+0x0/0x2c) from [] (check_flags+0xcc/0x12c) [] (check_flags+0x0/0x12c) from [] (lock_is_held+0x3c/0xb4) [] (lock_is_held+0x0/0xb4) from [] (__might_sleep+0x40/0x1d0) r8:c03b2440 r7:c03c5f38 r6:00000000 r5:c0327ce1 r4:00000481 r3:00000000 [] (__might_sleep+0x0/0x1d0) from [] (rt_mutex_lock+0x20/0x40) r7:c784ff24 r6:c08c0e80 r5:c784e000 r4:c784ff20 [] (rt_mutex_lock+0x0/0x40) from [] (rcu_kthread+0x100/0x198) r4:c784ff20 r3:c784ff40 [] (rcu_kthread+0x0/0x198) from [] (kthread+0x90/0x9c) [] (kthread+0x0/0x9c) from [] (do_exit+0x0/0x2f0) r7:00000013 r6:c00218e8 r5:c003bd84 r4:c782becc ---[ end trace 0000000000000002 ]--- possible reason: unannotated irqs-on. irq event stamp: 87282 hardirqs last enabled at (87281): [] _raw_spin_unlock_irqrestore+0x44/0x80 hardirqs last disabled at (87282): [] debug_check_no_locks_freed+0x44/0x154 softirqs last enabled at (0): [] copy_process+0x1f4/0xb78 softirqs last disabled at (0): [< (null)>] (null) Best regards Tim