Bug#880504:

[Salvatore Bonaccorso <carnil@debian.org>]

Hi Axel,

On Wed, Nov 08, 2017 at 08:52:58AM +0100, Axel Schäfer wrote:
> This bug also affects stretch's kernel (package linux-image-4.9.0-4, 
> version 4.9.51-1, as of 2017-09-28) in a very similar scenario that Andrew Chadwick reported
> (i.e. 20+ domain members on a cifs share via multiuser,sec=krb5 option). 
> 
> Applying the patch (via test-patches) from the sid branch seems to restore the expected behavior.

Thanks a lot for confirming that. I have applied the patch as well in
the stretch-branch.

Regards,
Salvatore