ovs/gre,vxlan, geneve: interface deletion are not notified via netlink with linux >= 4.3

[Nicolas Dichtel]

These upstream patches are needed:

ovs/gre,geneve: fix error path when creating an iface
http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=106da663ff495e0aea3ac15b8317aa410754fcac

ovs/vxlan: fix rtnl notifications on iface deletion
http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=cf5da330bbdd0c06b05c525a3d1d58ccd82c87a6

ovs/gre: fix rtnl notifications on iface deletion
http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=da6f1da819d4b9c081a477dec74dc468a0b44290

ovs/geneve: fix rtnl notifications on iface deletion
http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=41009481b690493c169ce85f591b9d32c6fd9422
---
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Jun 16 15:43 seq
 crw-rw---- 1 root audio 116, 33 Jun 16 15:43 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 16.04
IwConfig: Error: [Errno 2] No such file or directory
Lsusb: Error: [Errno 2] No such file or directory
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
Package: linux (not installed)
PciMultimedia:

ProcEnviron:
 TERM=vt220
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic root=/dev/mapper/6WIND-hostname ro console=ttyS0,115200n8 quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-22-generic N/A
 linux-backports-modules-4.4.0-22-generic N/A
 linux-firmware 1.157
RfKill: Error: [Errno 2] No such file or directory
Tags: xenial xenial xenial
Uname: Linux 4.4.0-22-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

_MarkForUpload: True
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: rel-1.8.2-0-g33fbe13 by qemu-project.org
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-2.5
dmi.modalias: dmi:bvnSeaBIOS:bvrrel-1.8.2-0-g33fbe13byqemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.5:cvnQEMU:ct1:cvrpc-i440fx-2.5:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-2.5
dmi.sys.vendor: QEMU

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1593235

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Joseph Salisbury (jsalisbury)]

I see these patches in David Miller's tree. However, they have not landed in mainline as of yet.

[Nicolas Dichtel (nicolas-dichtel)]

apport information

[Nicolas Dichtel (nicolas-dichtel)]

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[Nicolas Dichtel (nicolas-dichtel)]

apport information

[Nicolas Dichtel (nicolas-dichtel)]

apport information

[Nicolas Dichtel (nicolas-dichtel)]

apport information

[Nicolas Dichtel (nicolas-dichtel)]

apport information

[Nicolas Dichtel (nicolas-dichtel)]

apport information

[Nicolas Dichtel (nicolas-dichtel)]

apport information

[Nicolas Dichtel (nicolas-dichtel)]

apport information

[Nicolas Dichtel (nicolas-dichtel)]

> I see these patches in David Miller's tree. However, they have not landed in mainline as of yet.

Yes, thank you.

[Nicolas Dichtel (nicolas-dichtel)]

What is the status of this bug?

[Joseph Salisbury (jsalisbury)]

Sorry for the delay, I'll get some test kernels posted for you shortly.

[Joseph Salisbury (jsalisbury)]

These commits have all landed in Yakkety, so it looks like they are only now needed in Xenial.

[Joseph Salisbury (jsalisbury)]

Just wanted to provide an update. The 4.4 based Xenial kernel is requiring several other commits as prereqs to get a kernel to build with these 4 new patches. I'll continue to identify all of the prereq commits that are needed and post a test kernel.

[Joseph Salisbury (jsalisbury)]

I built a Xenial test kernel with the four patches. It can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1593235/xenial/

Can you test this kernel and see if it resolves this bug?

[Nicolas Dichtel (nicolas-dichtel)]

It resolves our bug, thank you.

[Joseph Salisbury (jsalisbury)]

Thanks for the update, Nicholas. I'll submit and SRU request for these patches to be included in Xenial.