Package: ifupdown
Version: 0.7.49
Severity: important


Hi.

This kinda feels like the other evil twin sibling from #727073:

What I have is a VM that runs on qemu/libvirt with Debian sid
(everthing updated as of now).

The /e/n/interfaces was a simple plain:
allow-auto      lo
allow-hotplug   eth0
iface lo inet loopback
iface eth0 inet dhcp

The VM is basically my template for any other server I set up.
Because of this, and because of #727073, I've changed the 
allow-hotplug to allow-auto as well, since that seems the only
solution right now for using it on servers with statically
configured IPv6 addresses.


After the change, I noted that the networking of the VM no longer
works (after the first reboot).

It seems that eth0 isn't brought up anymore *at all* (which
is in contrast to #727073, which brings stuff up, but just "too
late" - therefore also the new ticket).

But it seems again to be some timing issue between when ifupdown
tries the ifup, and when the DHCP of the VM is ready (even
though I'd expect that to be ready much earlier).

Or maybe I have just some complete misunderstanding of allow-*.


Any help on how to even debug this, would be appreciated. :)


Cheers,
Chris.


PS: If you need further data, then of course ask and I'll write it.

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_DE.utf8, LC_CTYPE=en_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages ifupdown depends on:
ii  adduser      3.113+nmu3
ii  initscripts  2.88dsf-53.4
ii  iproute      1:3.16.0-2
ii  iproute2     3.16.0-2
ii  libc6        2.19-11
ii  lsb-base     4.1+Debian13+nmu1

Versions of packages ifupdown recommends:
ii  isc-dhcp-client [dhcp-client]  4.3.1-5

Versions of packages ifupdown suggests:
ii  net-tools  1.60-26
ii  ppp        2.4.6-3
pn  rdnssd     <none>

-- debconf information excluded


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