[Samba] A samba locking question

Jeremy Allison jra at samba.org
Mon Feb 2 20:08:36 GMT 2004

On Mon, Feb 02, 2004 at 02:12:16PM -0600, Thomas Hannan wrote:
> This is exactly the case -- I want it to NOT pass down a 64 bit lock to
> fcntl but it does. I unfortunately have no alternative but to re-export
> an NFS mount (v3 on linux), and have tried to make it fail the configure
> test for 64 bit fcntl, but have not succeeded. (in the configure script,
> I simply made either result of the conftest for 64 bit fcntl locking set
> samba_cv_HAVE_STRUCT_FLOCK64=no) ...
> even when I compile after telling it that I don't have 64bit locking, i
> still get loads of errors in my syslog from smbd
> locking/posix.c:posix_fcntl_lock(656) an No locks available error. This
> can happen when using 64 bit offsets .... 
> I wish I could find a way to not have to re-export an NFS mount, but
> there's no way around it and I know that when I tested with an old 2.2
> binary that it worked beautifully, but I wasn't able to use any of the
> new features in 3.0, or test out new RC versions...

You could try doing the configure in the NFS mounted directory. I think
configure runs the tests in the current directory. Then the 64-bit locking
tests should fail and Samba should set itself up as only supporting
32-bit signed locks.


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