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[Launchpad Bug Tracker <1686784@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package systemd - 232-21ubuntu4

---------------
systemd (232-21ubuntu4) zesty; urgency=medium

  * Cherrypick upstream commit to enable system use kernel maximum limit for
    RLIMIT_NOFILE isntead of hard-coded (low) limit of 65536.  (LP: #1686361)
  * debian/tests/root-unittests: disable execute and seccomp tests on arm
    test-seccomp and test-execute fail on arm64 kernels. Marking both tests as
    expected failures. An upstream bug report is filed to resolve these.
    (LP: #1672499)
  * Cherrypick upstream patch for platform predictable interface names.
    (LP: #1686784)
  * resolved: fix null pointer dereference crash (LP: #1621396)
  * Cherrypick core/timer downgrade message about random time addition
    (LP: #1692136)

 -- Dimitri John Ledkov <xnox@xxxxxxxxxx>  Wed, 24 May 2017 16:26:16
+0100

** Changed in: systemd (Ubuntu Zesty)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1686784

Title:
  no predictable names for platform (non-PCI) NICs

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  Confirmed
Status in systemd source package in Yakkety:
  New
Status in systemd source package in Zesty:
  Fix Released

Bug description:
  [Impact]
  Systems may have NICs attached to the "platform" bus. These are NICs that are onboard, but not attached to a PCI(-like) bus. Rather, they are described by firmware directly. None of the naming policies enabled by Ubuntu by default matches these NICs, so they end up having unpredictable names. In the case where other NICs are attached (e.g. PCIe cards), the ethN enumeration race occurs, making it impossible to have an interface name that is persistent across reboots. That is, if you do a network install over "eth0", on reboot that NIC now maybe "eth3", which causes it to fail to start the network on boot.

  The HiSilicon D05 boards are an example of this. It has 4 onboard NICs
  that are described by ACPI directly, and may also have other PCIe NICs
  plugged in.

  [Test Case]
  Boot a system with the characteristics described above, and check to see if any "ethN" interfaces exist.

  [Regression Risk]
  Unless one fixed the names locally with .netlink / .rules files the interface names will change for the ACPI/platform bus network interfaces, from random ethX names to stable names named like enaVENDORMODELiX. Thus we should check that this update doesn't negatively break certified ARM64 platforms with: ARM, NVIDIA, HISILICON platform bus ethernet devices.

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