[Bug 803739] Re: value set in /etc/sysctl.conf not used at boot time

[Mathieu Trudel-Lapierre]

I think what you're really running into is that wlan0 comes up after the
sysctls are applied. Using net.ipv6.conf.all.use_tempaddr should fix
this in Precise now for devices that existed prior to the sysctls being
applied, and net.ipv6.conf.default.use_tempaddr was already meant to
take care of the case of devices coming up after the sysctls are applied
(and things have been that was as far as I can remember).

As such, I'll close this as Fix Released because there is an easy
workaround for your case with clearly known devices on a system
(meaning, there was no bug, the sysctls can't be applied if the device
doesn't exist and we're running the sysctls are early and as late as
feasible); and where using the per-device sysctls and .default. would
work, and because we've started shipping Precise with .all and .default
set to =2 along with a kernel patch to allow .all to work properly.

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

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https://bugs.launchpad.net/bugs/803739

Title:
  value set in /etc/sysctl.conf not used at boot time

Status in “procps” package in Ubuntu:
  Fix Released

Bug description:
  This is at the bottom of my /etc/sysctl.conf

  net.ipv6.conf.all.use_tempaddr = 2
  net.ipv6.conf.wlan0.use_tempaddr = 2
  net.ipv6.conf.eth0.use_tempaddr = 2
  net.ipv6.conf.eth1.use_tempaddr = 2

  
  Yet, after a reboot:
  $ sysctl net.ipv6.conf.wlan0.use_tempaddr
  net.ipv6.conf.wlan0.use_tempaddr = 0
  $ sysctl net.ipv6.conf.eth0.use_tempaddr
  net.ipv6.conf.eth0.use_tempaddr = 2

  then as root:
  # sysctl net.ipv6.conf.wlan0.use_tempaddr=2
  net.ipv6.conf.wlan0.use_tempaddr = 2

  This is on Ubuntu 11.04 64 bit. This behaviour does not happen on
  Ubuntu 10.10 32 bit.

  $ lsb_release -rd
  Description:    Ubuntu 11.04
  Release:        11.04

  $ apt-cache policy procps
  procps:
    Installed: 1:3.2.8-10ubuntu3
    Candidate: 1:3.2.8-10ubuntu3
    Version table:
   *** 1:3.2.8-10ubuntu3 0
          500 http://ca.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: procps 1:3.2.8-10ubuntu3
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  Architecture: amd64
  Date: Wed Jun 29 23:41:24 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  ProcEnviron:
   LANGUAGE=en_CA:en
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: procps
  UpgradeStatus: No upgrade log present (probably fresh install)

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