console log consumes fds upon job restart/respawn

Bug #940290 reported by Tuomo Tanskanen on 2012-02-24
This bug affects 2 people
Affects Status Importance Assigned to Milestone
James Hunt
upstart (Ubuntu)

Bug Description

Upstart is consuming more and more fds for restarted/respawned jobs. It is not losing the references, as fds are closed upon stopping the job.

Test case:
sudo cat >/etc/init/test.conf <<EOF
console log

  echo "foo"
  sleep 9999
end script

post-start exec echo "bar"
sudo start test
sudo ls -l /proc/1/fd | grep test (one fd)
sudo restart test
sudo ls -l /proc/1/fd | grep test (two fds)
sudo killall sleep
sudo ls -l /proc/1/fd | grep test (three fds)
sudo stop test
sudo ls -l /proc/1/fd | grep test (zero fds)

Tested on Ubuntu 12.04, Upstart 1.4-0ubuntu8, also upstream 1.4.

Related branches

James Hunt (jamesodhunt) on 2012-02-27
Changed in upstart:
importance: Undecided → Medium
status: New → Confirmed
assignee: nobody → James Hunt (jamesodhunt)

Revision 1363 seems to fix this, thank you.

James Hunt (jamesodhunt) on 2012-03-22
Changed in upstart (Ubuntu):
status: New → Confirmed
importance: Undecided → Medium
Changed in upstart:
status: Confirmed → Fix Released
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package upstart - 1.5-0ubuntu1

upstart (1.5-0ubuntu1) precise; urgency=low

  * FFe. LP: #962124.
  * New upstream 1.5 release.
    - fix boot failure when /dev/pts is not mounted before upstart starts.
      LP: #936667.
    - fix a file descriptor leak on job restarts. LP: #940290.
  * debian/conf/failsafe.conf: Added missing "emits" which breaks
    'initctl check-config'.
  * debian/manpages/upstart-events.7: Added 'failsafe-boot' and
    'recovery' events.
 -- James Hunt <email address hidden> Thu, 22 Mar 2012 13:50:31 +0000

Changed in upstart (Ubuntu):
status: Confirmed → Fix Released
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