From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754452AbYIXSjp (ORCPT ); Wed, 24 Sep 2008 14:39:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752112AbYIXSje (ORCPT ); Wed, 24 Sep 2008 14:39:34 -0400 Received: from rv-out-0506.google.com ([209.85.198.229]:23972 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751550AbYIXSjc convert rfc822-to-8bit (ORCPT ); Wed, 24 Sep 2008 14:39:32 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type :content-transfer-encoding:content-disposition; b=PnDsdF6Z1H4jJwq5SmfqfZgXqwHTj/asI3shQZ0unhlKIPOVXtf1VVqtvT0O514ZQd huHRBMAJGzEcbinKPYyg71JIo3wDcYBVLz4SSy3WUCZhdWbKXQ9xmju3X3nqDOCIEE4w 26fUCmnWPvwAj1R5jWlKtCBVk/xrPhb4wUpuo= Message-ID: <4807377b0809241139x18ea8ce4x7dbc66ba680be3e7@mail.gmail.com> Date: Wed, 24 Sep 2008 11:39:31 -0700 From: "Jesse Brandeburg" To: linux-kernel , "Ingo Molnar" , arjan@linux.intel.com, reiserfs-devel@vger.kernel.org, peterz@infradead.org Subject: [LOCKDEP linux-2.6.27-rc7] reiserfs circular locking MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org while debugging another issue and just using git I got: Sep 23 23:23:25 jbrandeb-bw kernel: [ INFO: possible circular locking dependency detected ] Sep 23 23:23:26 jbrandeb-bw syslog-ng[3750]: new configuration initialized Sep 23 23:23:25 jbrandeb-bw kernel: 2.6.27-rc7-jesse-00036-g146761c #4 Sep 23 23:23:26 jbrandeb-bw syslog-ng[3750]: Changing permissions on special file /dev/xconsole Sep 23 23:23:26 jbrandeb-bw syslog-ng[3750]: Changing permissions on special file /dev/tty10 Sep 23 23:23:26 jbrandeb-bw kernel:· Sep 23 23:23:26 jbrandeb-bw kernel: -> #2 (&REISERFS_SB(s)->xattr_dir_sem){----}: Sep 23 23:23:26 jbrandeb-bw kernel: [] validate_chain+0x946/0xbe6 Sep 23 23:23:26 jbrandeb-bw kernel: [] __lock_acquire+0x6a5/0x70e Sep 23 23:23:26 jbrandeb-bw kernel: [] lock_acquire+0x55/0x71 Sep 23 23:23:26 jbrandeb-bw kernel: [] down_read+0x50/0x80 Sep 23 23:23:26 jbrandeb-bw kernel: [] reiserfs_listxattr+0x85/0x152 Sep 23 23:23:26 jbrandeb-bw kernel: [] vfs_listxattr+0x50/0x82 Sep 23 23:23:26 jbrandeb-bw kernel: [] listxattr+0x61/0xb9 Sep 23 23:23:26 jbrandeb-bw kernel: [] sys_llistxattr+0x46/0x5f Sep 23 23:23:26 jbrandeb-bw kernel: [] system_call_fastpath+0x16/0x1b Sep 23 23:23:26 jbrandeb-bw kernel: [] 0xffffffffffffffff Sep 23 23:23:26 jbrandeb-bw kernel:· Sep 23 23:23:26 jbrandeb-bw kernel: -> #1 (&REISERFS_I(inode)->xattr_sem){----}: Sep 23 23:23:26 jbrandeb-bw kernel: [] validate_chain+0x946/0xbe6 Sep 23 23:23:26 jbrandeb-bw kernel: [] __lock_acquire+0x6a5/0x70e Sep 23 23:23:26 jbrandeb-bw kernel: [] lock_acquire+0x55/0x71 Sep 23 23:23:26 jbrandeb-bw kernel: [] down_read+0x50/0x80 Sep 23 23:23:26 jbrandeb-bw kernel: [] reiserfs_cache_default_acl+0x46/0xcd Sep 23 23:23:26 jbrandeb-bw kernel: [] reiserfs_create+0x53/0x1dd Sep 23 23:23:26 jbrandeb-bw kernel: [] vfs_create+0xa7/0x11d Sep 23 23:23:26 jbrandeb-bw kernel: [] do_filp_open+0x219/0x7de Sep 23 23:23:26 jbrandeb-bw kernel: [] do_sys_open+0x58/0xd8 Sep 23 23:23:26 jbrandeb-bw kernel: [] sys_open+0x20/0x22 Sep 23 23:23:26 jbrandeb-bw kernel: [] system_call_fastpath+0x16/0x1b Sep 23 23:23:26 jbrandeb-bw kernel: [] 0xffffffffffffffff Sep 23 23:23:26 jbrandeb-bw kernel:· Sep 23 23:23:26 jbrandeb-bw kernel: -> #0 (&type->i_mutex_dir_key#4){--..}: Sep 23 23:23:26 jbrandeb-bw kernel: [] validate_chain+0x62e/0xbe6 Sep 23 23:23:26 jbrandeb-bw kernel: [] __lock_acquire+0x6a5/0x70e Sep 23 23:23:26 jbrandeb-bw kernel: [] lock_acquire+0x55/0x71 Sep 23 23:23:26 jbrandeb-bw kernel: [] mutex_lock_nested+0xfe/0x28b Sep 23 23:23:26 jbrandeb-bw kernel: [] vfs_rmdir+0x5f/0xe8 Sep 23 23:23:26 jbrandeb-bw kernel: [] reiserfs_delete_xattrs+0x110/0x171 Sep 23 23:23:26 jbrandeb-bw kernel: [] reiserfs_delete_inode+0x46/0xc9 Sep 23 23:23:26 jbrandeb-bw kernel: [] generic_delete_inode+0x88/0x108 Sep 23 23:23:26 jbrandeb-bw kernel: [] generic_drop_inode+0x1c/0x174 Sep 23 23:23:26 jbrandeb-bw kernel: [] iput+0x66/0x6a Sep 23 23:23:26 jbrandeb-bw kernel: [] do_unlinkat+0xff/0x176 Sep 23 23:23:26 jbrandeb-bw kernel: [] sys_unlink+0x16/0x18 Sep 23 23:23:26 jbrandeb-bw kernel: [] system_call_fastpath+0x16/0x1b Sep 23 23:23:26 jbrandeb-bw kernel: [] 0xffffffffffffffff Sep 23 23:23:26 jbrandeb-bw kernel:· Sep 23 23:23:26 jbrandeb-bw kernel: other info that might help us debug this: Sep 23 23:23:26 jbrandeb-bw kernel:· Sep 23 23:23:26 jbrandeb-bw kernel: 1 lock held by git-merge-recur/5032: Sep 23 23:23:26 jbrandeb-bw kernel: #0: (&REISERFS_SB(s)->xattr_dir_sem){----}, at: [] reiserfs_delete_xattrs+0x104/0x171 Sep 23 23:23:26 jbrandeb-bw kernel:· Sep 23 23:23:26 jbrandeb-bw kernel: stack backtrace: Sep 23 23:23:26 jbrandeb-bw kernel: Pid: 5032, comm: git-merge-recur Not tainted 2.6.27-rc7-jesse-00036-g146761c #4 Sep 23 23:23:26 jbrandeb-bw kernel:· Sep 23 23:23:26 jbrandeb-bw kernel: Call Trace: Sep 23 23:23:26 jbrandeb-bw kernel: [] print_circular_bug_tail+0xba/0xc5 Sep 23 23:23:26 jbrandeb-bw kernel: [] ? print_circular_bug_entry+0x48/0x4f Sep 23 23:23:26 jbrandeb-bw kernel: [] validate_chain+0x62e/0xbe6 Sep 23 23:23:26 jbrandeb-bw kernel: [] __lock_acquire+0x6a5/0x70e Sep 23 23:23:26 jbrandeb-bw kernel: [] lock_acquire+0x55/0x71 Sep 23 23:23:26 jbrandeb-bw kernel: [] ? vfs_rmdir+0x5f/0xe8 Sep 23 23:23:26 jbrandeb-bw kernel: [] mutex_lock_nested+0xfe/0x28b Sep 23 23:23:26 jbrandeb-bw kernel: [] ? vfs_rmdir+0x5f/0xe8 Sep 23 23:23:26 jbrandeb-bw kernel: [] ? vfs_rmdir+0x5f/0xe8 Sep 23 23:23:26 jbrandeb-bw kernel: [] vfs_rmdir+0x5f/0xe8 Sep 23 23:23:26 jbrandeb-bw kernel: [] ? reiserfs_delete_xattrs+0x104/0x171 Sep 23 23:23:26 jbrandeb-bw kernel: [] reiserfs_delete_xattrs+0x110/0x171 Sep 23 23:23:26 jbrandeb-bw kernel: [] reiserfs_delete_inode+0x46/0xc9 Sep 23 23:23:26 jbrandeb-bw kernel: [] ? reiserfs_delete_inode+0x0/0xc9 Sep 23 23:23:26 jbrandeb-bw kernel: [] generic_delete_inode+0x88/0x108 Sep 23 23:23:26 jbrandeb-bw kernel: [] generic_drop_inode+0x1c/0x174 Sep 23 23:23:26 jbrandeb-bw kernel: [] iput+0x66/0x6a Sep 23 23:23:26 jbrandeb-bw kernel: [] do_unlinkat+0xff/0x176 Sep 23 23:23:26 jbrandeb-bw kernel: [] ? trace_hardirqs_on_thunk+0x3a/0x3f Sep 23 23:23:26 jbrandeb-bw kernel: [] ? trace_hardirqs_on_caller+0xf1/0x115 Sep 23 23:23:26 jbrandeb-bw kernel: [] ? trace_hardirqs_on_thunk+0x3a/0x3f Sep 23 23:23:26 jbrandeb-bw kernel: [] sys_unlink+0x16/0x18 Sep 23 23:23:26 jbrandeb-bw kernel: [] system_call_fastpath+0x16/0x1b Sep 23 23:23:26 jbrandeb-bw kernel:· may be related to http://bugzilla.kernel.org/show_bug.cgi?id=9136 .config or other questions gladly answered.