[systemd-devel] race conditions after SIGTERM
lennart at poettering.net
Thu Aug 14 10:24:54 PDT 2014
On Thu, 14.08.14 21:16, Andrei Borzenkov (arvidjaar at gmail.com) wrote:
> В Thu, 14 Aug 2014 14:24:49 +0200
> Lennart Poettering <lennart at poettering.net> пишет:
> > On Sun, 27.07.14 20:04, Reindl Harald (h.reindl at thelounge.net) wrote:
> > > but that still don't explain why "ExecStopPost=/sur/bin/true" or
> > > whatever "ExecStopPost" solves that and if it is not supported
> > > why "systemctl" don't return after the one and only process
> > > exited
> > Well, this is a misunderstanding how ExecStop= and friends are supposed
> > to work. They are supposed to do what they did on sysvinit:
> > synchronously terminate a service. And not asynchronously do that.
> I have to ask again - why is forcing every package to re-implement busy
> loop waiting for process to exit better than doing this wait in one
> place - PID 1 - which is the most natural place to do it?
Which is what we do. Except when you specify ExecStop= which basically
tells systemd that you want to do it instead. So there you go!
Lennart Poettering, Red Hat
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