** Project changed: ntp => ubuntu

** Changed in: ubuntu
   Importance: Unknown => Undecided

** Changed in: ubuntu
 Remote watch: Debian Bug tracker #823533 => None

** No longer affects: ubuntu

** Also affects: ntp (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823533
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1206164

Title:
  /etc/network/if-up.d/ntpdate does not detach correctly

Status in ntp package in Ubuntu:
  Won't Fix
Status in ntp package in Debian:
  Unknown

Bug description:
  It seems that the intent of /etc/network/if-up.d/ntpdate is to
  background itself, as it creates a subshell with &.

  As reported in bug 1202758, this doesn't seem to work correctly.  That
  doesn't close the file descriptors.  As a result, if something is
  waiting on the output of 'ifup', it will sit and wait until ntpdate is
  finished.

  Example:
  $ time sudo sh -c 'o=$(sh -c "ifdown eth0 ; ifup eth0" 2>&1) ; echo $o'

  If we change the way it detaches itself to close stdout, stdderr, and
  stdin, then we're fine.

  I'm reporting this, but I'm not sure how much of a real problem it is.  As if 
th
  e command sends stdin and stdout to /dev/null, then debugging its output 
would b
  e more difficult.

  Example diff:
  $ diff -u /etc/network/if-up.d/ntpdate.dist /etc/network/if-up.d/ntpdate
  --- /etc/network/if-up.d/ntpdate.dist  2013-07-29 15:47:54.242781947 +0000
  +++ /etc/network/if-up.d/ntpdate 2013-07-29 15:48:06.946781947 +0000
  @@ -56,4 +56,4 @@
     lockfile-remove $LOCKFILE
   fi

  -) &
  +) </dev/null >/dev/null 2>&1 &

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: ntpdate 1:4.2.6.p5+dfsg-2ubuntu2
  ProcVersionSignature: User Name 3.10.0-5.15-generic 3.10.2
  Uname: Linux 3.10.0-5-generic x86_64
  ApportVersion: 2.11-0ubuntu1
  Architecture: amd64
  Date: Mon Jul 29 15:32:30 2013
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ntp
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.network.if.up.d.ntpdate: 2013-07-29T15:32:03.567775

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