On Fri, 22 Feb 2013 08:14:44 -0600 (CST)
"Robert J. Hendelman Jr" <rob@xxxxxxxxxxxxx> wrote:
> I'm getting some strange error messages in /var/log/kern.log.
>
> kernel: [66276.873095] CIFS VFS: Send error in Flush = -9
> kernel: [66287.828329] CIFS VFS: Send error in Flush = -9
> kernel: [66287.829180] CIFS VFS: Send error in Flush = -9
> kernel: [66289.243979] CIFS VFS: Send error in Flush = -9
>
> My desktop is Ubuntu 12.10 and has kernel 3.5.0-24-generic w/ cifs module version 1.78 (as per modinfo cifs).
>
> I've mounted a test server share (Ubuntu 12.04) with the following options as per "cat /etc/fstab"
>
> //cifserver/data /data cifs noauto,strictcache,sec=krb5i,multiuser,acl,username=MYDESKTOP$ 0 2
>
> Other than this, the share seems to work fine.
>
> Is this something I should be concerned with or is it more informational?
>
> Robert
-9 is EBADF. I suspect that means that the server is returning an error
that got translated to that, which probably means it didn't like the
file-id (FID) that the client sent for some reason. This request is for
a SMB_COM_FLUSH which is something like an fsync() in POSIX-land. It
tells the server to commit outstanding data for this open file to
stable storage.
It might be interesting to see a capture of the data between client and
server when you get this, so we can see what error the server is
actually returning.
https://wiki.samba.org/index.php/LinuxCIFS_troubleshooting#Wire_Captures
If you do that, it might be best to open a bug at bugzilla.samba.org so
we have a place to track this info. Feel free to CC me on that bug if
you do so.
Thanks,
--
Jeff Layton <jlayton@xxxxxxxxx>
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