FW: [Samba] Strange locking errors with LabView under Samba 2.2.7 and HP-UX 11.11

[Windsor Dave (AdW/MOE2.1)]

I've had the chance to give 2.2.7a a try, with no change in behavior.
LabView still takes several minutes to load, and disk utilization shoots way
up.

Just to see what would happen, I tried Samba 2.2.5 and got the same results.
I then dropped back to 2.2.4, and everything works fine.  LabView loads in
about 12 seconds, disk utilization stays low during the load, no locking
errors appear in the log, and nmbd/smbd processes seem to cause less disk
utilization as well.  What could have changed between 2.2.4 and 2.2.5 to
cause this?

If anyone has any suggestions, I have plenty of system time in the next two
weeks to experiment (but I probably won't start until Monday).

Best Regards,

Dave Windsor 
AdW/MOE2.12 
Team Leader, Test Systems Engineering 
Robert Bosch Corporation 
Anderson, SC, USA 
Voice: (864) 260-8459 
Fax:   (864) 260-8142 
email: mailto:Dave.Windsor at us.bosch.com
 


-----Original Message-----
From: Windsor Dave (AdW/MOE2.1) 
Sent: Thursday, December 19, 2002 6:32 PM
To: 'John H Terpstra'
Cc: 'samba at lists.samba.org'
Subject: RE: [Samba] Strange locking errors with LabView under Samba
2.2.7 and HP-UX 1 1.11


Hmmmm....that sounds reasonable.  I have 2.2.7a compiled up and ready to
install as soon as our production test equipment shuts down, hopefully
tomorrow.  I'll post my results as soon as I get the chance.

Thanks!

Dave Windsor 
email: <mailto:Dave.Windsor at us.bosch.com> 

-----Original Message-----
From: John H Terpstra [mailto:jht at samba.org]
Sent: Thursday, December 19, 2002 6:24 PM
To: Windsor Dave (AdW/MOE2.1)
Cc: 'samba at lists.samba.org'
Subject: Re: [Samba] Strange locking errors with LabView under Samba
2.2.7 and HP-UX 1 1.11


Dave,

Samba-2.2.7a was released to fix 64bit file access issues. Strongly
suggest you update.

- John T.

On Thu, 19 Dec 2002, Windsor Dave (AdW/MOE2.1) wrote:

> Hello All,
>
> I recently upgraded one of my HP-UX servers from Samba 2.2.4 to 2.2.7.
> Since that time, I have noticed that disk activity on the file system
where
> the Samba var directory is kept seems to be higher than I would expect.
We
> have now begun to experience a problem with PC clients running National
> Instruments' LabView software, installed on a Samba share.  When any PC
> client tries to execute it, disk utilization goes to 100% according to
HP's
> Glance performance monitor, with nearly all activity being in the
> aforementioned file system containing the Samba var files and being caused
> by the smbd for the client running LabView.  Using Glance to look at open
> files, I found that the only open file located in the Samba var file
system
> is the smbd log file, and it is filled with messages like this:
>
> [2002/12/19 17:47:17, 0] locking/posix.c:(660)
>
>   posix_fcntl_lock: WARNING: lock request at offset 0, length
> 9223372036854779000 returned
>
> [2002/12/19 17:47:17, 0] locking/posix.c:(662)
>
>   an Invalid argument error. This can happen when using 64 bit lock
offsets
>
> [2002/12/19 17:47:17, 0] locking/posix.c:(663)
>
>   on 32 bit NFS mounted file systems.
>
> [2002/12/19 17:47:17, 0] locking/posix.c:(677)
>
>   Count greater than 31 bits - retrying with 31 bit truncated length.
>
> [2002/12/19 17:47:17, 0] locking/posix.c:(660)
>
>   posix_fcntl_lock: WARNING: lock request at offset 0, length
> 9223372036854779000 returned
>
> [2002/12/19 17:47:17, 0] locking/posix.c:(662)
>
>   an Invalid argument error. This can happen when using 64 bit lock
offsets
>
> [2002/12/19 17:47:17, 0] locking/posix.c:(663)
>
>   on 32 bit NFS mounted file systems.
>
> [2002/12/19 17:47:17, 0] locking/posix.c:(677)
>
> over and over again.  I have log level set to 1, with a different log for
> each client.  After several minutes, LabView finally loads and things
settle
> back down.  Any ideas as to what is happening?  The log mentions NFS, but
> the directories containing LabView are local to my system and are exported
> by Samba only, not NFS.
>
> My copy of Samba was compiled here using HP's ANSI C compiler under HP-UX
> 11.11.  I ran configure with very few options, just to set the prefix and
to
> set "--with-utmp".  None of these problems occurred under Samba 2.2.4, and
I
> haven't yet had a chance to try out 2.2.7a to see if there's any
difference.
> The problem occurs when running LabView with both NT4 and W2K clients.
With
> our holiday shutdown almost here, I hope to get a chance to try 2.2.7a
> sometime tomorrow.
>
> Thanks in advance for any assistance!
>
> Dave Windsor
> AdW/MOE2.12
> Team Leader, Test Systems Engineering
> Robert Bosch Corporation
> Anderson, SC, USA
> email: <mailto:Dave.Windsor at us.bosch.com>
>
>
>

-- 
John H Terpstra
Email: jht at samba.org