write error with krb5p

[J. Bruce Fields]

On Fri, Mar 09, 2007 at 02:32:28PM -0500, Kumar V Thangavelu wrote:
> I am trying to setup nfs with krb5p support and ran into a bug which
> seems related to the post "read error with krb5p".
> http://linux-nfs.org/pipermail/nfsv4/2007-February/005722.html
> 
> On the client, it is not possible to write files of size less than 4
> bytes when using sec=krb5p.  Atempting to write a file of less than 4
> bytes in the client results in a zero length file. Is this a known
> issue? Please let me know if there is a patch available? I also see
> the read problem mentioned in the earlier post "read error with
> krb5p".

Yes, it's a known problem.  No, no patch available yet, apologies.  Any
write of 1, 2, or 3 bytes at a page-aligned offset fails.  Also
reproduced against a netapp server, so it's probably the client that's
at fault.  A git bisect suggests that this started happening after
5c64097aa0f6dc4f27718ef47ca9a12538d62860, but I don't understand that
commit yet.

--b.