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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Did this issue start happening after an update/upgrade?  Was there a
prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.6 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1581890

Title:
  Boot registers protocol family 40, which is not in configs

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I noticed this line in the system log after boot:
  "May 14 14:41:08 ubuntu kernel: [    8.677878] NET: Registered protocol family 40"
  I tried to find out what protocol that was, and eventually determined that the IANA thinks it's the IL protocol, which is deprecated and unusual in any case. Protocol number 40 doesn't appear in the expected config or alias files (for modprobe in /etc or /etc/modprobe.d/). Enabling a dead protocol without being told seems to be a thing an OS shouldn't be doing.

  More context for the log line is below:
  ...
  May 14 14:41:08 ubuntu vmsvc[1607]: [ warning] [GLib-GObject] Attempt to add property ToolsCoreService::tcs-app-ctx after class was initialised
  May 14 14:41:08 ubuntu vmsvc[1607]: [ warning] [GLib-GObject] Attempt to add property ToolsCoreService::tcs-prop-thread-pool after class was initialised
  May 14 14:41:08 ubuntu kernel: [    8.677878] NET: Registered protocol family 40
  May 14 14:48:36 ubuntu dbus[465]: [system] Activating service name='org.freedesktop.UPower' (using servicehelper)
  May 14 14:48:36 ubuntu dbus[465]: [system] Successfully activated service 'org.freedesktop.UPower'
  ...

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