Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750768AbWHTNV7 (ORCPT ); Sun, 20 Aug 2006 09:21:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750773AbWHTNV7 (ORCPT ); Sun, 20 Aug 2006 09:21:59 -0400 Received: from nf-out-0910.google.com ([64.233.182.186]:21487 "EHLO nf-out-0910.google.com") by vger.kernel.org with ESMTP id S1750768AbWHTNV7 (ORCPT ); Sun, 20 Aug 2006 09:21:59 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=mH+PM/Jf49U0CK4/1GzhXsep+zJJMlMaOoInvetqZ7sQHd2M41D120LGiyq5yhmpmFLwM7WU1M/EkF3F62i1n4b9B+SRG2VwmfAu889xwP8ag3HZnDoGciSH8wHAzS4biYJEiHJeqRe8hELI5PcWVXe878mvRNcCyZ+PiJy80nA= Message-ID: <44E8621B.3040705@gmail.com> Date: Sun, 20 Aug 2006 15:22:35 +0200 From: Michal Piotrowski User-Agent: Thunderbird 1.5.0.5 (X11/20060808) MIME-Version: 1.0 To: Andrew Morton CC: linux-kernel@vger.kernel.org, Hans Reiser , reiserfs-list@namesys.com, reiserfs-dev@namesys.com Subject: Re: 2.6.18-rc4-mm2 References: <20060819220008.843d2f64.akpm@osdl.org> In-Reply-To: <20060819220008.843d2f64.akpm@osdl.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4933 Lines: 123 Andrew Morton wrote: > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc4/2.6.18-rc4-mm2/ > Reiser4 bug? ======================================================= [ INFO: possible circular locking dependency detected ] 2.6.18-rc4-mm2 #106 ------------------------------------------------------- umount/2571 is trying to acquire lock: (&txnh->hlock){--..}, at: [] commit_txnh+0x3a/0xad [reiser4] but task is already holding lock: (&atom->alock){--..}, at: [] txnh_get_atom+0x1c/0x78 [reiser4] which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&atom->alock){--..}: [] add_lock_to_list+0x22/0x39 [] check_prev_add+0x103/0x1b4 [] check_prevs_add+0x4d/0xaf [] __lock_acquire+0x8a1/0x93c [] lock_acquire+0x6f/0x8f [] _spin_lock+0x23/0x2f [] atom_begin_and_assign_to_txnh+0xdd/0x17a [reiser4] [] try_capture_block+0x77/0x2f9 [reiser4] [] reiser4_try_capture+0x9e/0xf8 [reiser4] [] longterm_lock_znode+0x168/0x266 [reiser4] [] get_uber_znode+0x17/0x1c [reiser4] [] reiser4_capture_super_block+0x24/0x5e [reiser4] [] release_format40+0x1c/0xdc [reiser4] [] reiser4_put_super+0x8f/0xc5 [reiser4] [] generic_shutdown_super+0x67/0xdf [] kill_block_super+0x20/0x32 [] deactivate_super+0x5d/0x6f [] mntput_no_expire+0x52/0x85 [] path_release_on_umount+0x15/0x18 [] sys_umount+0x69/0x71 [] sys_oldumount+0xd/0xf [] sysenter_past_esp+0x56/0x8d [] 0xb7f3c410 [] 0xffffffff -> #0 (&txnh->hlock){--..}: [] print_circular_bug_tail+0x30/0x62 [] check_prev_add+0x2b/0x1b4 [] check_prevs_add+0x4d/0xaf [] __lock_acquire+0x8a1/0x93c [] lock_acquire+0x6f/0x8f [] _spin_lock+0x23/0x2f [] commit_txnh+0x3a/0xad [reiser4] [] reiser4_txn_end+0x1a/0x28 [reiser4] [] reiser4_txn_restart+0xb/0x1a [reiser4] [] reiser4_txn_restart_current+0x17/0x19 [reiser4] [] txnmgr_force_commit_all+0x29/0x114 [reiser4] [] release_format40+0x66/0xdc [reiser4] [] reiser4_put_super+0x8f/0xc5 [reiser4] [] generic_shutdown_super+0x67/0xdf [] kill_block_super+0x20/0x32 [] deactivate_super+0x5d/0x6f [] mntput_no_expire+0x52/0x85 [] path_release_on_umount+0x15/0x18 [] sys_umount+0x69/0x71 [] sys_oldumount+0xd/0xf [] sysenter_past_esp+0x56/0x8d [] 0xb7f3c410 [] 0xffffffff other info that might help us debug this: 3 locks held by umount/2571: #0: (&type->s_umount_key#20){--..}, at: [] deactivate_super+0x58/0x6f #1: (&type->s_lock_key#12){--..}, at: [] mutex_lock+0x1c/0x1f #2: (&atom->alock){--..}, at: [] txnh_get_atom+0x1c/0x78 [reiser4] stack backtrace: [] dump_trace+0x70/0x1ad [] show_trace_log_lvl+0x12/0x22 [] show_trace+0xd/0xf [] dump_stack+0x17/0x19 [] print_circular_bug_tail+0x59/0x62 [] check_prev_add+0x2b/0x1b4 [] check_prevs_add+0x4d/0xaf [] __lock_acquire+0x8a1/0x93c [] lock_acquire+0x6f/0x8f [] _spin_lock+0x23/0x2f [] commit_txnh+0x3a/0xad [reiser4] [] reiser4_txn_end+0x1a/0x28 [reiser4] [] reiser4_txn_restart+0xb/0x1a [reiser4] [] reiser4_txn_restart_current+0x17/0x19 [reiser4] [] txnmgr_force_commit_all+0x29/0x114 [reiser4] [] release_format40+0x66/0xdc [reiser4] [] reiser4_put_super+0x8f/0xc5 [reiser4] [] generic_shutdown_super+0x67/0xdf [] kill_block_super+0x20/0x32 [] deactivate_super+0x5d/0x6f [] mntput_no_expire+0x52/0x85 [] path_release_on_umount+0x15/0x18 [] sys_umount+0x69/0x71 [] sys_oldumount+0xd/0xf [] sysenter_past_esp+0x56/0x8d [] 0xb7f3c410 ======================= config & dmesg -> http://www.stardust.webpages.pl/files/mm/2.6.18-rc4-mm2/ Regards, Michal -- Michal K. K. Piotrowski LTG - Linux Testers Group (http://www.stardust.webpages.pl/ltg/wiki/) - 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/