2.6.17.8 - do_vfs_lock: VFS is out of sync with lock manager!

6 messages, 2 authors, 2006-08-13 · open the first message on its own page

2.6.17.8 - do_vfs_lock: VFS is out of sync with lock manager!

From: Jesper Juhl <hidden>
Date: 2006-08-08 14:39:57

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?

-- 
Jesper Juhl [off-list ref]
Don't top-post  http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please      http://www.expita.com/nomime.html

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Re: 2.6.17.8 - do_vfs_lock: VFS is out of sync with lock manager!

From: Grant Coady <hidden>
Date: 2006-08-09 05:53:52

On Tue, 8 Aug 2006 16:39:54 +0200, "Jesper Juhl" [off-list ref] 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.

Grant.

-------------------------------------------------------------------------
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http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
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Re: 2.6.17.8 - do_vfs_lock: VFS is out of sync with lock manager!

From: Jesper Juhl <hidden>
Date: 2006-08-09 08:07:43

On 09/08/06, Grant Coady [off-list ref] wrote:
On Tue, 8 Aug 2006 16:39:54 +0200, "Jesper Juhl" [off-list ref] wrote:
quoted
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 [off-list ref]
Don't top-post  http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please      http://www.expita.com/nomime.html

-------------------------------------------------------------------------
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

Re: 2.6.17.8 - do_vfs_lock: VFS is out of sync with lock manager!

From: Jesper Juhl <hidden>
Date: 2006-08-10 22:37:38

On 09/08/06, Jesper Juhl [off-list ref] wrote:
On 09/08/06, Grant Coady [off-list ref] wrote:
quoted
On Tue, 8 Aug 2006 16:39:54 +0200, "Jesper Juhl" [off-list ref] wrote:
quoted
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.
Today 3 more of my webservers running 2.6.17.8 reported this message.
The machines all seem to be running fine still, so it doesn't seem to
be a serious problem, but it would still be nice to get it fixed ;)


-- 
Jesper Juhl [off-list ref]
Don't top-post  http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please      http://www.expita.com/nomime.html

-------------------------------------------------------------------------
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

Re: 2.6.17.8 - do_vfs_lock: VFS is out of sync with lock manager!

From: Grant Coady <hidden>
Date: 2006-08-11 00:30:32

On Fri, 11 Aug 2006 00:37:35 +0200, "Jesper Juhl" [off-list ref] wrote:
On 09/08/06, Jesper Juhl [off-list ref] wrote:
quoted
On 09/08/06, Grant Coady [off-list ref] wrote:
quoted
On Tue, 8 Aug 2006 16:39:54 +0200, "Jesper Juhl" [off-list ref] wrote:
quoted
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.
Today 3 more of my webservers running 2.6.17.8 reported this message.
The machines all seem to be running fine still, so it doesn't seem to
be a serious problem, but it would still be nice to get it fixed ;)
Do you have some test case other than web server that triggers it?  
I can try it here, recently did much NFS testing reported under 
2.4.33-rc1 or -rc2 on lkml to try sort a vfs_unlink issue.

My web server here is low volume, not a good test situation -- plus 
it no longer runs under 2.6 and I don't want to take it down too often 
to sort out why.  Once it could dual boot 2.4 or 2.6 without trouble, 
but that option fell apart when 2.6.16 came out.

Grant.

-------------------------------------------------------------------------
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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
_______________________________________________
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Re: 2.6.17.8 - do_vfs_lock: VFS is out of sync with lock manager!

From: Grant Coady <hidden>
Date: 2006-08-13 23:08:55

On Fri, 11 Aug 2006 00:37:35 +0200, "Jesper Juhl" [off-list ref] wrote:
On 09/08/06, Jesper Juhl [off-list ref] wrote:
quoted
On 09/08/06, Grant Coady [off-list ref] wrote:
quoted
On Tue, 8 Aug 2006 16:39:54 +0200, "Jesper Juhl" [off-list ref] wrote:
quoted
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.
Today 3 more of my webservers running 2.6.17.8 reported this message.
The machines all seem to be running fine still, so it doesn't seem to
be a serious problem, but it would still be nice to get it fixed ;)
I'm running continuous kernel 2.4.33 rebuild from make mrproper plus 
another console extracting tarball, diff tree against last_extracted, 
on pair of 2.6.17.8 boxen overnight with NFS TCP support, no problems, 
now testing without TCP support.  Report again only if I see problems.  

Let me know if you want to see test scripts.

Grant.

-------------------------------------------------------------------------
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
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