Re: [PATCH 00/19] lnfs: 3.9-rc5 release

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On Tue, Apr 23, 2013 at 02:04:50PM -0400, Steve Dickson wrote:
> On 23/04/13 13:22, J. Bruce Fields wrote:
> >>> What exactly was failing?
> >> > 
> >> > Sorry I can't find the results right now.  I'll re-run and let you know.
> > The server is returning -EOPNOTSUPP in response to an nfs4 SETATTR which
> > sets a mode.
> > 
> > The operation shouldn't be failing, and if it does it should return an
> > NFS error, not -ERRNO.
> > 
> > I can't reproduce this just by doing chmod on the linux client.  I'm not
> > sure what pynfs is doing differently to trigger the bug.
> thanks for talking a look...  
> 
> Hmm... I wonder if the fact nfsd4_set_nfs4_label() is returning 
> -EOPNOTSUPP instead of something like nfserr_attrnotsupp when 
> labels are not configured... Something you've pointed out 
> twice now... 
>     http://www.spinics.net/lists/linux-nfs/msg36104.html
> 
> If it is this problem I wonder why a chmod would not trigger it...

It could happen if sa_label isn't initialized.  Not sure why it would
consistently be NULL in one case but not the other.

--b.
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