On 09/08/06, Grant Coady <[email protected]> wrote:
On Tue, 8 Aug 2006 16:39:54 +0200, "Jesper Juhl" <[email protected]> wrote:
>I have some webservers that have recently started reporting the
>following message in their logs :
>
> do_vfs_lock: VFS is out of sync with lock manager!
>
>The serveres kernels were upgraded to 2.6.17.8 and since the upgrade
>the message started appearing.
>The servers were previously running 2.6.13.4 without experiencing this problem.
>Nothing has changed except the kernel.
>
>I've googled a bit and found this mail
>(http://lkml.org/lkml/2005/8/23/254) from Trond saying that
>"The above is a lockd error that states that the VFS is failing to track
>your NFS locks correctly".
>Ok, but that doesn't really help me resolve the issue. The servers are
>indeed running NFS and access their apache DocumentRoots from a NFS
>mount.
>
>Is there anything I can do to help track down this issue?
I don't have an answer, but offer this observation: five boxen running
2.6.17.8 doing six simultaneous
bzcat /home/share/linux-2.6/patch-2.6.18-rc4.bz2|patch -p1
didn't burp. The /home/share/ is an NFS export from another box running
2.4.33-rc3a, me not sure if this was exercising any NFS locking as the
NFS source file was only opened for non-exclusive read-only.
The NFS server here is running 2.6.11.11 and doesn't seem to be
reporting any problems. But I now have two more of my webservers (both
running 2.6.17.8) that have started to complain about "do_vfs_lock:
VFS is out of sync with lock manager!"
I've not found a way to cause the message to be repported at will unfortunately.
--
Jesper Juhl <[email protected]>
Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html
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