From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754240Ab1AJPWS (ORCPT ); Mon, 10 Jan 2011 10:22:18 -0500 Received: from na3sys009aog109.obsmtp.com ([74.125.149.201]:56478 "EHLO na3sys009aog109.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752316Ab1AJPWO (ORCPT ); Mon, 10 Jan 2011 10:22:14 -0500 From: Santosh Shilimkar MIME-Version: 1.0 X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Thread-Index: Acuw2h/2UfcNWK5vQyin+ahQsBtg2w== Date: Mon, 10 Jan 2011 20:51:59 +0530 Message-ID: Subject: [REPORT] BUG: spinlock recursion on CPU#0, init/1 To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On latest mainline commit I seeing a regression when rootfs is mounted on NFS. Not sure if it's already known regression. Anybody is aware of this one ? -------------------------------------- Uncompressing Linux... done, booting the kernel. Linux version 2.6.37-03766-g0390214 (a0393909@a0393909-desktop) (gcc version 4.4.1 (Sourcery G++ Lite 2010q1-202) ) #44 SMP Mon Jan 10 20:41:27 IST 2011 [....] VFS: Mounted root (nfs filesystem) on device 0:13. Freeing init memory: 296K BUG: spinlock recursion on CPU#0, init/1 lock: ef5a1e0c, .magic: dead4ead, .owner: init/1, .owner_cpu: 0 [] (unwind_backtrace+0x0/0xe4) from [] (do_raw_spin_lock+0x48/0x158) [] (do_raw_spin_lock+0x48/0x158) from [] (nameidata_dentry_drop_rcu+0x84/0x17c) [] (nameidata_dentry_drop_rcu+0x84/0x17c) from [] (d_revalidate+0x30/0x58) [] (d_revalidate+0x30/0x58) from [] (link_path_walk+0xb44/0xb64) [] (link_path_walk+0xb44/0xb64) from [] (do_path_lookup+0x44/0xcc) [] (do_path_lookup+0x44/0xcc) from [] (do_filp_open+0xc8/0x56c) [] (do_filp_open+0xc8/0x56c) from [] (do_sys_open+0x58/0xe4) [] (do_sys_open+0x58/0xe4) from [] (ret_fast_syscall+0x0/0x3c) BUG: spinlock lockup on CPU#0, init/1, ef5a1e0c [] (unwind_backtrace+0x0/0xe4) from [] (do_raw_spin_lock+0x13c/0x158) [] (do_raw_spin_lock+0x13c/0x158) from [] (nameidata_dentry_drop_rcu+0x84/0x17c) [] (nameidata_dentry_drop_rcu+0x84/0x17c) from [] (d_revalidate+0x30/0x58) [] (d_revalidate+0x30/0x58) from [] (link_path_walk+0xb44/0xb64) [] (link_path_walk+0xb44/0xb64) from [] (do_path_lookup+0x44/0xcc) [] (do_path_lookup+0x44/0xcc) from [] (do_filp_open+0xc8/0x56c) [] (do_filp_open+0xc8/0x56c) from [] (do_sys_open+0x58/0xe4) [] (do_sys_open+0x58/0xe4) from [] (ret_fast_syscall+0x0/0x3c) BUG: spinlock lockup on CPU#1, kworker/u:2/499, c05d3c80 [] (unwind_backtrace+0x0/0xe4) from [] (do_raw_spin_lock+0x13c/0x158) [] (do_raw_spin_lock+0x13c/0x158) from [] (exit_fs+0x2c/0x84) [] (exit_fs+0x2c/0x84) from [] (do_exit+0x254/0x674) [] (do_exit+0x254/0x674) from [] (kthread+0x88/0x8c) [] (kthread+0x88/0x8c) from [] (kernel_thread_exit+0x0/0x8) -------------------------------------- Regards, Santosh