Process hierarchy on a DC?

[vl at samba.org]

On Thu, Apr 27, 2017 at 10:53:16PM +1200, Andrew Bartlett via samba-technical wrote:
> > When killing (in the above case) process 24963, the others crash.
> 
> As in exit, or crash hard in some way?

Just because you are asking: I have not done the due diligence on the
exit behaviour yet that would be required for a proper bug report, so
apologies for not giving you the full diagnosis yet.

This is the picture I get when doing a "kill -15" on the parent
process of the "samba" processes:

25255 ?        S      0:00 bin/samba
25513 ?        S      0:00  \_ sh -c /bin/sleep 999999999
25514 ?        S      0:00      \_ /bin/sleep 999999999
25266 ?        S      0:00 bin/samba
25511 ?        S      0:00  \_ sh -c /bin/sleep 999999999
25512 ?        S      0:00      \_ /bin/sleep 999999999

To my uninformed eye this looks surprising.

With best regards,

Volker Lendecke