[Bug 702802] Re: event "net-device-up" is triggered too early

[Tore Anderson]

I don't think this is really fixed in recent versions either. At least I
dist-upgraded my test server to Trusty now, but the script from comment
#5 still shows that the interface only has a tentative LL address
assigned by the time it is started by upstart:

Mar 24 20:42:59 ucstest kernel: [   23.150580] enic 0000:08:00.0 eth0: Link UP
Mar 24 20:43:00 ucstest network-test: 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
Mar 24 20:43:00 ucstest network-test:     link/ether 00:25:b5:00:00:ce brd ff:ff:ff:ff:ff:ff
Mar 24 20:43:00 ucstest network-test:     inet6 fe80::225:b5ff:fe00:ce/64 scope link tentative 
Mar 24 20:43:00 ucstest network-test:        valid_lft forever preferred_lft forever
Mar 24 20:43:00 ucstest ntpdate[779]: Can't find host ntp.ubuntu.com: Name or service not known (-2)
Mar 24 20:43:00 ucstest ntpdate[779]: no servers can be used, exiting

Tore

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https://bugs.launchpad.net/bugs/702802

Title:
  event "net-device-up" is triggered too early

Status in “ifupdown” package in Ubuntu:
  Fix Released
Status in “ifupdown” source package in Precise:
  New

Bug description:
  Binary package hint: ifupdown

  Hello,

  on booting, the event "net-device-up" is triggered too early. The
  event is "sent" to other jobs immediately after the ifup command has
  been executed, but neither ifup nor the calling script /etc/network
  /if-up.d/upstart perform a test if the network connection is really
  working. The result of this behaviour is that a job needing network
  functionality, e.g. mounting NFS filesystems, is possibly started
  before other network machines are reachable and makes the computer
  hang. This happens when the network interface needs some time to
  negotiate the ethernet parameters with the network switch.

  Regards
    Christoph

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: ifupdown 0.6.8ubuntu29.2
  ProcVersionSignature: Ubuntu 2.6.32-27.49-generic 2.6.32.26+drm33.12
  Uname: Linux 2.6.32-27-generic x86_64
  Architecture: amd64
  Date: Fri Jan 14 10:27:30 2011
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SourcePackage: ifupdown

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