From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752805Ab1ARQTM (ORCPT ); Tue, 18 Jan 2011 11:19:12 -0500 Received: from mail-ew0-f46.google.com ([209.85.215.46]:65056 "EHLO mail-ew0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752079Ab1ARQTK convert rfc822-to-8bit (ORCPT ); Tue, 18 Jan 2011 11:19:10 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:reply-to:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; b=Jb3EROtM/mcerScM+3uyj5Rl1PKYWUjltWMZne5fl+FO7qN7E8u0D4KgpnjUei2wIx eMqz9rYn2hH1Chx0aQdNp6cXBM5rv8+bsYBaHCwVZic6JHurbUIW2+7Sef5Ob/5CVOkU ExeSMF7J7dizI81kLtGV2eKBc7QdncLid1NNc= From: Maciej Rutecki Reply-To: maciej.rutecki@gmail.com To: Santosh Shilimkar Subject: Re: [REPORT] BUG: spinlock recursion on CPU#0, init/1 Date: Tue, 18 Jan 2011 17:19:05 +0100 User-Agent: KMail/1.13.5 (Linux/2.6.37; KDE/4.4.5; i686; ; ) Cc: linux-kernel@vger.kernel.org References: In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Message-Id: <201101181719.05608.maciej.rutecki@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I created a Bugzilla entry at https://bugzilla.kernel.org/show_bug.cgi?id=27022 for your bug report, please add your address to the CC list in there, thanks! On poniedziałek, 10 stycznia 2011 o 16:21:59 Santosh Shilimkar wrote: > 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 > -- > 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/ -- Maciej Rutecki http://www.maciek.unixy.pl