From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758880AbYD0APk (ORCPT ); Sat, 26 Apr 2008 20:15:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753950AbYD0APb (ORCPT ); Sat, 26 Apr 2008 20:15:31 -0400 Received: from smtp5-g19.free.fr ([212.27.42.35]:32995 "EHLO smtp5-g19.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753618AbYD0APb (ORCPT ); Sat, 26 Apr 2008 20:15:31 -0400 From: Bernard Pidoux To: linux-kernel@vger.kernel.org Subject: Re: spinlock lockup on CPU#0 Date: Sun, 27 Apr 2008 02:15:23 +0200 User-Agent: KMail/1.9.9 References: <200804262333.39383.bpidoux@free.fr> In-Reply-To: <200804262333.39383.bpidoux@free.fr> Cc: Bernard Pidoux MIME-Version: 1.0 Content-Type: Multipart/Mixed; boundary="Boundary-00=_bW8EI8hNfPeF5in" Message-Id: <200804270215.23739.bpidoux@free.fr> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Boundary-00=_bW8EI8hNfPeF5in Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi, cpu_idle bug is also present in 2.6.24.4 kernel. I hope this helps. Bernard Pidoux --Boundary-00=_bW8EI8hNfPeF5in Content-Type: text/plain; charset="utf-8"; name="lockdep-2.6.24.4.idle.cpu" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="lockdep-2.6.24.4.idle.cpu" Apr 27 01:13:36 f6bvp-7 kernel: Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar Apr 27 01:13:36 f6bvp-7 kernel: ... MAX_LOCKDEP_SUBCLASSES: 8 Apr 27 01:13:36 f6bvp-7 kernel: ... MAX_LOCK_DEPTH: 30 Apr 27 01:13:36 f6bvp-7 kernel: ... MAX_LOCKDEP_KEYS: 2048 Apr 27 01:13:36 f6bvp-7 kernel: ... CLASSHASH_SIZE: 1024 Apr 27 01:13:36 f6bvp-7 kernel: ... MAX_LOCKDEP_ENTRIES: 8192 Apr 27 01:13:36 f6bvp-7 kernel: ... MAX_LOCKDEP_CHAINS: 16384 Apr 27 01:13:36 f6bvp-7 kernel: ... CHAINHASH_SIZE: 8192 Apr 27 01:13:36 f6bvp-7 kernel: memory used by lock dependency info: 1712 kB Apr 27 01:13:36 f6bvp-7 kernel: per task-struct memory footprint: 2160 bytes Apr 27 01:13:36 f6bvp-7 kernel: Memory: 1018724k/1047424k available (2307k kernel code, 27920k reserved, 1174k data, 616k init) Apr 27 01:13:36 f6bvp-7 kernel: Calibrating delay using timer specific routine.. 4396.25 BogoMIPS (lpj=8792506) Apr 27 01:13:36 f6bvp-7 kernel: Mount-cache hash table entries: 256 Apr 27 01:13:36 f6bvp-7 kernel: lockdep: not fixing up alternatives. Apr 27 01:13:36 f6bvp-7 kernel: lockdep: not fixing up alternatives. Apr 27 01:13:36 f6bvp-7 kernel: Initializing CPU#1 Apr 27 01:13:36 f6bvp-7 kernel: Calibrating delay using timer specific routine.. 4388.97 BogoMIPS (lpj=8777957) Apr 27 01:13:36 f6bvp-7 kernel: Intel(R) Core(TM)2 Duo CPU E4500 @ 2.20GHz stepping 0d Apr 27 01:13:36 f6bvp-7 kernel: WARNING: at kernel/lockdep.c:2662 check_flags() Apr 27 01:13:36 f6bvp-7 kernel: Pid: 0, comm: swapper Not tainted 2.6.24.4patched #7 Apr 27 01:13:36 f6bvp-7 kernel: Apr 27 01:13:36 f6bvp-7 kernel: Call Trace: Apr 27 01:13:36 f6bvp-7 kernel: [] __atomic_notifier_call_chain+0x0/0xa0 Apr 27 01:13:36 f6bvp-7 kernel: [] check_flags+0x1c2/0x1d0 Apr 27 01:13:36 f6bvp-7 kernel: [] lock_acquire+0x65/0xd0 Apr 27 01:13:36 f6bvp-7 kernel: [] __atomic_notifier_call_chain+0x51/0xa0 Apr 27 01:13:36 f6bvp-7 kernel: [] mwait_idle+0x0/0x60 Apr 27 01:13:36 f6bvp-7 kernel: [] default_idle+0x0/0x60 Apr 27 01:13:36 f6bvp-7 kernel: [] atomic_notifier_call_chain+0x11/0x20 Apr 27 01:13:36 f6bvp-7 kernel: [] __exit_idle+0x29/0x30 Apr 27 01:13:36 f6bvp-7 kernel: [] cpu_idle+0x85/0xd0 Apr 27 01:13:36 f6bvp-7 kernel: [] start_secondary+0x2f8/0x430 Apr 27 01:13:36 f6bvp-7 kernel: Apr 27 01:13:36 f6bvp-7 kernel: possible reason: unannotated irqs-on. Apr 27 01:13:36 f6bvp-7 kernel: irq event stamp: 6 Apr 27 01:13:36 f6bvp-7 kernel: hardirqs last enabled at (5): [] _spin_unlock_irqrestore+0x55/0x60 Apr 27 01:13:36 f6bvp-7 kernel: hardirqs last disabled at (6): [] cpu_idle+0x71/0xd0 Apr 27 01:13:36 f6bvp-7 kernel: softirqs last enabled at (0): [] copy_process+0x2de/0x15d0 Apr 27 01:13:36 f6bvp-7 kernel: softirqs last disabled at (0): [<0000000000000000>] 0x0 --Boundary-00=_bW8EI8hNfPeF5in--