** Changed in: ifupdown (Ubuntu)
Status: New = Invalid
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https://bugs.launchpad.net/bugs/1126560
Title:
/etc/networking/* are executed multiple times
To manage notifications
--all does not explain why 2 interfaces in /etc/network/interfaces
marked as auto are causing 3 starts of network devices.
** Changed in: ifupdown (Ubuntu)
Status: Invalid = New
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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
** Attachment added: network_reboot2.log
https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1126560/+attachment/3552579/+files/network_reboot2.log
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** Attachment added: network_restart2.log
https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1126560/+attachment/3552580/+files/network_restart2.log
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From the manpage:
When ifupdown is being called with the --all option, before doing
anything to interfaces, if calls all the hook scripts (pre-up or down) with
IFACE set to
--all, LOGICAL set to the current value of --allow parameter (or
auto if it's not set), ADDRFAM=meta
This does not explain:
- Why lo is missing on /etc/init.d/networking restart.
- Why eth0 was registered 2 times (if-pre-up.d) on rebooting.
- The difference between sequential executing (on restarting with
/etc/init.d/networking restart) and parallel executing (on rebooting the
system).
**
- Why lo is missing on /etc/init.d/networking restart.
- Because we never bring down lo on networking restart.
- Why eth0 was registered 2 times (if-pre-up.d) on rebooting.
No idea and I can't reproduce this here.
Here I see the pre-up scripts being called 3 times:
- once for --all
-
Maybe there is a problem with an upstart script or something else. But
what is now the correct behavior? The sequential or parallel executing?
Maybe the parallelization comes from upstart too.
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both are the correct behaviour.
Most interfaces are brought up through udev events as soon as the kernel finds
them, however the standard sequential bring up is still there for the few
cases where we fail to get kernel events.
Those cases include ethX interfaces in containers, tunnel devices,
This is fine, not a bug :) Read the man page regarding --all.
** Changed in: ifupdown (Ubuntu)
Status: New = Invalid
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Title:
Interfaces are brought up as they show up from the kernel, so they can
indeed be brought up in parallel.
I have tested this and it seems to be false (assuming there is a bug on
booting). I have written a script which helps me debugging this problem
and placed it in /etc/network/if-pre-up.d/ and
** Attachment added: network_reboot.log
https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1126560/+attachment/3533750/+files/network_reboot.log
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** Attachment added: network_restart.log
https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1126560/+attachment/3533751/+files/network_restart.log
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Please attach your /etc/network/interfaces
** Changed in: ifupdown (Ubuntu)
Status: New = Incomplete
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https://bugs.launchpad.net/bugs/1126560
Title:
/etc/networking/* are
** Attachment added: interfaces
https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1126560/+attachment/3530718/+files/interfaces
** Changed in: ifupdown (Ubuntu)
Status: Incomplete = New
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Ok, with that config you should have all the scripts run twice in theory, once
for the loopback device and once for eth0.
Not sure why you're seeing one running 3 times though.
All the .d scripts are run once per interface, so it's perfectly normal
for them to be called multiple times.
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