Re: qpsmtpd-forkserver on Mac OS X

[Laurent Bercot <ska-supervision@skarnet.org>]

> The server runs correctly when launched by the run script  
> (sudo ./run without the runit service running), but not when  
> controlled by runit. :/

 This is not the same.
 When you do "sudo ./run", the run script is executed with most of
your user environment (open fds, environment variables and whatnot),
modified in some way by the sudo configuration.
 When the run script is started by runit, it is run with a "boot"
environment: init spawns runsvdir, which spawns runsv, which spawns
your service.
 There's something in your service that works in a user environment
and doesn't in a boot environment. I don't know qpsmtpd at all, but
here are some random points:

 - Does your server work when stdin isn't a terminal? If not, why?
 - (depending on your boot configuration) Does your server work when
stdin is closed?
 - What do kernel limits look like in your boot environment? Are
there ulimit commands in log in scripts that make them less strict
in user environments?

 HTH,

-- 
 Laurent