[PATCH] Fix bug #13121 - Non-smbd processes using kernel oplocks can hang smbd

[Andrew Bartlett]

On Tue, 2017-11-28 at 17:27 -0800, Jeremy Allison via samba-technical
wrote:
> On Wed, Nov 29, 2017 at 02:24:36PM +1300, Gary Lockyer wrote:
> > Jeremy,
> >        Can we put it into flapping until then, as it's breaking at least
> > 50% of our cloud builds
> 
> Can this be a private patch ?

Sadly no.  A local patch carried across all our team members will end
up in master sooner rather than later because it will have to be in all
the development trees, all the time.  As you know, running autobuild in
Samba 14.04 VMs is central to our workflow and is central to ensuring
we don't push our own flapping tests to master (we run them a lot!). 

I would rather this was officially acknowledged until it is fixed.  

Testing beyond the specific sn-devel machine is also key to my efforts
to make pre-push Samba testing more accessible. 

>  It isn't breaking anywhere else
> than your cloud builds and I'd like to know why that is rather
> than ignoring it. What's different about your cloud kernel ?

It is the official kernel from Ubuntu, it isn't Catalyst specific. 

> That's the only thing I can think of that would cause the
> process to not be sent a signal.

I can get you a login on such a VM if you like.

Thanks,

Andrew Bartlett

-- 
Andrew Bartlett
https://samba.org/~abartlet/
Authentication Developer, Samba Team         https://samba.org
Samba Development and Support, Catalyst IT   
https://catalyst.net.nz/services/samba