FW: Sporadic permission denied error in Samba 4.3 and 4.4, 4.2 OK

[Jeremy Allison]

On Mon, Nov 14, 2016 at 09:46:51PM +0100, Volker Lendecke wrote:
> On Mon, Nov 14, 2016 at 08:44:04PM +0000, Youzhong Yang wrote:
> > Thanks Volker. How easy is it to switch back to tdb-based messaging?
> > I can try it here. Also is it possible to debug datagram messaging
> > to find out why it is not working?
> 
> This is probably the kernel dropping messages. It will be impossible
> to debug under load. Going back to tdb-based messaging is a pretty large
> effort not taken lightly. Probably sticking with 4.2 is the best you
> can do at this point.

It also may be a Solaris/Illumos/OpenIndiana kernel bug. I haven't
heard of any such issues on Linux/FreeBSD.

I wouldn't regress to tdb-messaging just yet :-).

Jeremy.