[systemd-bugs] [Bug 90051] udevd have no measure to avoid exiting before all jobs are done

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90051

--- Comment #7 from Kay Sievers <kay at vrfy.org> ---
(In reply to Tom Yan from comment #3)
> It doesn't seem to work in the way you said. For example in this script:
> https://projects.archlinux.org/svntogit/packages.git/tree/trunk/initcpio-
> hook-udev?h=packages/systemd
> I assume that `udevadm settle` should make sure that events triggered by the
> two commands before it should be finished? But from what I am experiencing
> it does not.

A quick test seems to work fine here.

# cat /etc/udev/rules.d/10-local.rules
KERNEL=="null", RUN+="/usr/bin/sleep 3"

# echo $(date +%s) trigger; udevadm trigger; \
  echo $(date +%s) settling; udevadm settle; \
  echo $(date +%s) exiting; udevadm control --exit; \
  echo $(date +%s) done
1429886202 trigger
1429886202 settling
1429886205 exiting
1429886205 done

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