From: "Marco Schwarz" Subject: Re: do_vfs_lock Messages Date: Thu, 09 Nov 2006 10:06:52 +0100 Message-ID: <20061109090652.18840@gmx.net> References: <20061108144900.241780@gmx.net> <1163007231.5712.42.camel@lade.trondhjem.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: nfs@lists.sourceforge.net Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list2-new.sourceforge.net with esmtp (Exim 4.43) id 1Gi5yg-0001r4-BV for nfs@lists.sourceforge.net; Thu, 09 Nov 2006 01:13:42 -0800 Received: from mail.gmx.net ([213.165.64.20]) by mail.sourceforge.net with smtp (Exim 4.44) id 1Gi5ye-0000BF-Oy for nfs@lists.sourceforge.net; Thu, 09 Nov 2006 01:13:43 -0800 In-Reply-To: <1163007231.5712.42.camel@lade.trondhjem.org> To: Trond Myklebust List-Id: "Discussion of NFS under Linux development, interoperability, and testing." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfs-bounces@lists.sourceforge.net Errors-To: nfs-bounces@lists.sourceforge.net > > Hi, > > > > I am getting A LOT of messages like > > > > Nov 8 15:34:56 linux kernel: do_vfs_lock: VFS is out of sync with lock > manager! > > Nov 8 15:35:06 linux last message repeated 156 times > > > > on a discless client system (root on NFS) with Kernel 2.6.18 > > > > Is this critical ? If not, can I supress it somehow ? It doesnt happen > with the same server and my older clients (running 2.4.something). > > It isn't critical. Usually it just means that someone is interrupting > NFS lock calls. You can suppress it by changing the 'console_loglevel' > field in /proc/sys/kernel/printk. Use something like > > echo "3 3 1 7" > /proc/sys/kernel/printk > > Cheers, > Trond Maybe these message are somehow related to the kernel error message that I get when doing heavy IO ? Here's one of them: Nov 8 16:24:55 linux kernel: BUG: unable to handle kernel paging request at virtual address 6e696c43 Nov 8 16:24:55 linux kernel: printing eip: Nov 8 16:24:55 linux kernel: c041e445 Nov 8 16:24:55 linux kernel: *pde = 00000000 Nov 8 16:24:55 linux kernel: Oops: 0000 [#1] Nov 8 16:24:55 linux kernel: Modules linked in: Nov 8 16:24:55 linux kernel: CPU: 0 Nov 8 16:24:55 linux kernel: EIP: 0060:[] Not tainted VLI Nov 8 16:24:55 linux kernel: EFLAGS: 00010246 (2.6.18.2 #9) Nov 8 16:24:55 linux kernel: EIP is at rpcauth_refreshcred+0x15/0x50 Nov 8 16:24:55 linux kernel: eax: df082c80 ebx: df082c80 ecx: 00000001 edx: 6e696c2f Nov 8 16:24:55 linux kernel: esi: d9266000 edi: df082ce8 ebp: dd905d20 esp: dd905d04 Nov 8 16:24:55 linux kernel: ds: 007b es: 007b ss: 0068 Nov 8 16:24:55 linux kernel: Process ln (pid: 11347, ti=dd904000 task=df332560 task.ti=dd904000) Nov 8 16:24:55 linux kernel: Stack: df082c80 00000000 c041d116 df082c80 00000000 dd905d48 c041825c 00000000 Nov 8 16:24:55 linux kernel: 00000000 d9266000 dee303e0 dd905d58 00000006 c01ec175 d78ad270 dee302d0 Nov 8 16:24:55 linux kernel: dee302c8 c04ead60 dd905d68 00000006 d9266000 00000017 dd905ed8 00000001 Nov 8 16:24:55 linux kernel: Call Trace: Nov 8 16:24:55 linux kernel: [] __rpc_execute+0x46/0x1d0 Nov 8 16:24:55 linux kernel: [] rpc_call_sync+0x8c/0xb0 Nov 8 16:24:55 linux kernel: [] nfs_proc_symlink+0xd5/0x140 Nov 8 16:24:55 linux kernel: [] do_page_fault+0x0/0x540 Nov 8 16:24:55 linux kernel: [] nfs_symlink+0x84/0x160 Nov 8 16:24:55 linux kernel: [] dput+0x99/0x140 Nov 8 16:24:55 linux kernel: [] nfs_lookup_revalidate+0x172/0x450 Nov 8 16:24:55 linux kernel: [] d_alloc+0x1b/0x170 Nov 8 16:24:55 linux kernel: [] d_lookup+0x1b/0x40 Nov 8 16:24:55 linux kernel: [] dput+0xc5/0x140 Nov 8 16:24:55 linux kernel: [] mntput_no_expire+0x13/0x60 Nov 8 16:24:55 linux kernel: [] __link_path_walk+0x3e0/0xd30 Nov 8 16:24:55 linux kernel: [] nfs_permission+0xf2/0x120 Nov 8 16:24:55 linux kernel: [] nfs_permission+0x0/0x120 Nov 8 16:24:55 linux kernel: [] permission+0xba/0xe0 Nov 8 16:24:55 linux kernel: [] __link_path_walk+0x385/0xd30 Nov 8 16:24:55 linux kernel: [] mntput_no_expire+0x13/0x60 Nov 8 16:24:55 linux kernel: [] link_path_walk+0x69/0xd0 Nov 8 16:24:55 linux kernel: [] nfs_permission+0x0/0x120 Nov 8 16:24:55 linux kernel: [] permission+0xba/0xe0 Nov 8 16:24:55 linux kernel: [] vfs_symlink+0x91/0x100 Nov 8 16:24:55 linux kernel: [] sys_symlinkat+0x77/0xc0 Nov 8 16:24:55 linux kernel: [] sys_symlink+0x11/0x20 Nov 8 16:24:55 linux kernel: [] sysenter_past_esp+0x56/0x79 Nov 8 16:24:55 linux kernel: Code: e8 21 91 cf ff 83 c4 10 eb a2 8d b6 00 00 00 00 8d bf 00 00 00 00 56 53 8b 70 28 89 c3 f6 05 a8 27 63 c0 10 75 16 8b 56 08 89 d8 52 14 8 5 c0 78 04 5b 5e c3 90 89 43 18 5b 5e c3 56 8b 40 10 Nov 8 16:24:55 linux kernel: EIP: [] rpcauth_refreshcred+0x15/0x50 SS:ESP 0068:dd905d04 They are quite annoying, and even worse sometimes the whole machine stops working - it looks like it looses its NFS root and can no longer access it ... Best regards, Marco Schwarz ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs