[OmniOS-discuss] OmniOS r151016 zone has difficulties shutting down

[Bob Friesenhahn]

On Mon, 4 Jan 2016, Dan McDonald wrote:

>
>> On Dec 31, 2015, at 10:45 AM, Bob Friesenhahn <bfriesen at simple.dallas.tx.us> wrote:
>>
>> I am accessing the system via ssh which uses '~.' to terminate the ssh session.  This is also the default shutdown sequence for 'zlogin -C'. The idea is that after doing some initial administration using 'zlogin -C', the "~." sequence was used to quit it.  This terminates the ssh session rather than the zone console login.  While subsequent 'zlogin -C' works, it may be that the unclean/violent termination of the zone console login has left behind residue which prevents the zone from shutting down.
>
> Dumb questions:  which ssh client, and which ssh server?
>
> It's highly possible the process you have simply backgrounds once ssh quits.  Knowing which server + client combo may help... especially given that you now have OpenSSH doing a lot more in recent OmniOS updates.

I no longer believe that the problem is due to hung state associated 
with a ssh session since I have since seen it several times using 
'zlogin' without -C and using 'exit' to quit the session. 
Regardless, this is the answer to your question:

On Solaris 10 client system:

   Sun_SSH_1.1.5, SSH protocols 1.5/2.0, OpenSSL 0x0090704f

On OmniOS system

   Sun_SSH_1.5, SSH protocols 1.5/2.0, OpenSSL 0x1000205f

As far as I am aware, the problem has not happened without first 
having done a 'zlogin' to the zone.  Also, as far as I am aware, the 
problem afflicts the most recently created zone (until at least system 
reboot) but it is also not consistent in that sometimes the shutdown 
succeeds and sometimes it fails.

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/