[Bug 931220] Re: lxc-start should get a close-all-fds option to avoid weird issues

[Launchpad Bug Tracker]

This bug was fixed in the package lxc - 0.7.5-3ubuntu25

---------------
lxc (0.7.5-3ubuntu25) precise; urgency=low

  * 0042-close-fds.patch: add a new --close-all-fds option.  Normally if
    lxc-start is started with an open fd, it exits with failiure.  With
    this option specified, the fds will be closed and startup will continue.
    --daemon now implies --close-all-fds.  (LP: #931220)
 -- Serge Hallyn <serge.hallyn at ubuntu.com>   Mon, 13 Feb 2012 14:03:25 -0600

** Changed in: lxc (Ubuntu)
       Status: Triaged => Fix Released

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https://bugs.launchpad.net/bugs/931220

Title:
  lxc-start should get a close-all-fds option to avoid weird issues

Status in “lxc” package in Ubuntu:
  Fix Released
Status in “upstart” package in Ubuntu:
  Invalid

Bug description:
  root at vorash:~# cat /var/log/upstart/lxc.log 
  + [ -f /etc/default/lxc ]
  + . /etc/default/lxc
  + LXC_AUTO=true
  + USE_LXC_BRIDGE=false
  + LXC_BRIDGE=lxcbr0
  + LXC_ADDR=10.0.3.1
  + LXC_NETMASK=255.255.255.0
  + LXC_NETWORK=10.0.3.0/24
  + LXC_DHCP_RANGE=10.0.3.2,10.0.3.254
  + LXC_DHCP_MAX=253
  + [ xtrue = xtrue ]
  + ls /etc/lxc/auto/v6test01.conf
  + basename /etc/lxc/auto/v6test01.conf .conf
  + c=v6test01
  + lxc-info -n v6test01
  + grep state
  + grep -q RUNNING
  + lxc-start -l debug -o /run/debug -n v6test01 -f /etc/lxc/auto/v6test01.conf -d

  root at vorash:~# cat /run/debug 
        lxc-start 1329097397.477 ERROR    lxc_start - inherited fd 21 on socket:[17416]

  
  The first listing is the output of lxc.conf running with "set -x" and upstart logging with an added "-l debug -o /run/debug" to the lxc-start command line.
  The second is the output in /run/debug

  Apparently lxc-start is inheriting an fd from upstart causing lxc to
  fail to start.

  I'm marking this high against lxc and also adding an upstart task in
  case we're inheriting this fd from some upstart issue.

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