[Bug 406397] Re: init: job stuck with expect fork/daemon when parent reaps child

[Michael Gliwinski]

Likewise to using a script stanza, this is also a problem when a script
that actually starts a daemon is specified in `exec'.

Although it wouldn't help with the original problem (avahi-deamon), for
scripts a workaround/fix could be if you could tell upstart the name of
the final executable, so it could ignore forks that exec another
executable.  Don't know if that's feasible?

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https://bugs.launchpad.net/bugs/406397

Title:
  init: job stuck with expect fork/daemon when parent reaps child

Status in Upstart:
  Triaged
Status in “aiccu” package in Ubuntu:
  Confirmed
Status in “upstart” package in Ubuntu:
  Invalid
Status in PLD Linux Distribution:
  New

Bug description:
  Hi

  Wrong use of the expect fork stanza can create job with status
    job stop/killled, process nnn
  without any process nnn running on the system.

  As an example the following avahi.conf should have used
  "expect daemon", but will instead create a stuck job.

  stop on stopping dbus-system
  respawn
  expect fork
  exec avahi-daemon -D

  /Emil Renner Berthing

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