[Bug 1126560] Re: /etc/networking/* are executed multiple times

[Sworddragon]

I have now extended my script with $IFACE and the result is very
annoying. On restarting the network with /etc/init.d/networking restart
(network_restart2.log) --all and eth0 were registered. I'm wondering why
eth0 is registered there if --all is already used or why lo is missing.
On rebooting the system (network_reboot2.log) it is more confusing. eth0
was registered on if-pre-up.d 2 times, lo 1 time and --all 1 time. On
if-up.d lo, eth0 and --all were registered 1 time. I'm wondering here
too why --all is registered if eth0 and lo are already registered. But
it is even annoying why eth0 was registered 2 times on if-pre-up.d. The
difference why restarting the network is calling the scripts
sequentially and rebooting the system parallel makes the chaos perfect.

** Attachment added: "debug2"
   https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1126560/+attachment/3552578/+files/debug2

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https://bugs.launchpad.net/bugs/1126560

Title:
  /etc/networking/* are executed multiple times

Status in “ifupdown” package in Ubuntu:
  New

Bug description:
  I'm using Ubuntu 13.04 dev with ifupdown 0.7.5ubuntu2. I have noticed
  that on booting my system in /etc/networking the scripts in if-pre-
  up.d and if-up.d are executed multiple times. On my observations I
  have noticed that they can even be executed parallelized. I have
  logged what happened on a boot:

  1. The content of /etc/networking/if-pre-up.d is executed parallelized 2 times.
  2. After they have finished the content of /etc/networking/if-up.d is excuted.
  3. Then the content of /etc/networking/if-pre-up.d is excuted again.
  4. At last the content of /etc/networking/if-up.d is executed again too.

  As a summary: The content of /etc/networking/if-pre-up.d was executed
  3times and /etc/networking/if-up.d 2 times.

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