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

[Stéphane Graber]

The upstart bug is now being tracked in bug 931584

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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:
  Triaged
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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