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).
Best regards,
Marco Schwarz
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On Wed, 2006-11-08 at 15:49 +0100, Marco Schwarz wrote:
> 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
-------------------------------------------------------------------------
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_______________________________________________
NFS maillist - [email protected]
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> > 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:[<c041e445>] 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: [<c041d116>] __rpc_execute+0x46/0x1d0
Nov 8 16:24:55 linux kernel: [<c041825c>] rpc_call_sync+0x8c/0xb0
Nov 8 16:24:55 linux kernel: [<c01ec175>] nfs_proc_symlink+0xd5/0x140
Nov 8 16:24:55 linux kernel: [<c0111a80>] do_page_fault+0x0/0x540
Nov 8 16:24:55 linux kernel: [<c01e4f34>] nfs_symlink+0x84/0x160
Nov 8 16:24:55 linux kernel: [<c0166689>] dput+0x99/0x140
Nov 8 16:24:55 linux kernel: [<c01e3d32>] nfs_lookup_revalidate+0x172/0x450
Nov 8 16:24:55 linux kernel: [<c0166d3b>] d_alloc+0x1b/0x170
Nov 8 16:24:55 linux kernel: [<c016728b>] d_lookup+0x1b/0x40
Nov 8 16:24:55 linux kernel: [<c01666b5>] dput+0xc5/0x140
Nov 8 16:24:55 linux kernel: [<c016a6a3>] mntput_no_expire+0x13/0x60
Nov 8 16:24:55 linux kernel: [<c015db90>] __link_path_walk+0x3e0/0xd30
Nov 8 16:24:55 linux kernel: [<c01e55c2>] nfs_permission+0xf2/0x120
Nov 8 16:24:55 linux kernel: [<c01e54d0>] nfs_permission+0x0/0x120
Nov 8 16:24:55 linux kernel: [<c015d25a>] permission+0xba/0xe0
Nov 8 16:24:55 linux kernel: [<c015db35>] __link_path_walk+0x385/0xd30
Nov 8 16:24:55 linux kernel: [<c016a6a3>] mntput_no_expire+0x13/0x60
Nov 8 16:24:55 linux kernel: [<c015e549>] link_path_walk+0x69/0xd0
Nov 8 16:24:55 linux kernel: [<c01e54d0>] nfs_permission+0x0/0x120
Nov 8 16:24:55 linux kernel: [<c015d25a>] permission+0xba/0xe0
Nov 8 16:24:55 linux kernel: [<c01601e1>] vfs_symlink+0x91/0x100
Nov 8 16:24:55 linux kernel: [<c01602c7>] sys_symlinkat+0x77/0xc0
Nov 8 16:24:55 linux kernel: [<c0160321>] sys_symlink+0x11/0x20
Nov 8 16:24:55 linux kernel: [<c0102d1d>] 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 <ff> 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: [<c041e445>] 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
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_______________________________________________
NFS maillist - [email protected]
https://lists.sourceforge.net/lists/listinfo/nfs
> On Wed, 2006-11-08 at 15:49 +0100, Marco Schwarz wrote:
> > 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
I tried to mount my nfs root with NOLOCK, shouldnt this also make those messages disappear ?
host btest.fds{
hardware ethernet 00:17:31:37:A9:CF;
fixed-address 192.168.4.39;
filename "/tftpboot/pxelinux.0";
option root-path "/netclients/192.168.4.39_sles9,nolock,rsize=4096,wsize=4096";
}
It doesnt look like anything changed with NOLOCK, still lots of do_vfs_lock
while booting up ...
Best regards,
Marco
-------------------------------------------------------------------------
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 - [email protected]
https://lists.sourceforge.net/lists/listinfo/nfs