Patch looks to have landed in the upstream kernel as of 4.11-rc4. This
should be considered for SRU for Zesty (4.10) and Yakkety (4.8). I've
marked it Fix Committed for Artful.
$ git describe --contains 8f3dbfd79ed9ef9770305a7cc4e13dfd31ad2cd0
v4.11-rc4~28^2~49
$ git show 8f3dbfd79ed9ef9770305a7cc4e13dfd31ad2cd0
commit 8f3dbfd79ed9ef9770305a7cc4e13dfd31ad2cd0
Author: Kris Murphy <krisk...@linux.vnet.ibm.com>
Date: Thu Mar 16 10:51:28 2017 -0500
openvswitch: Add missing case OVS_TUNNEL_KEY_ATTR_PAD
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Zesty)
Importance: Undecided
Status: New
** Also affects: openvswitch (Ubuntu Zesty)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Also affects: openvswitch (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Zesty)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Changed in: linux (Ubuntu Yakkety)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Changed in: linux (Ubuntu)
Status: New => Fix Committed
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Yakkety)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Zesty)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Yakkety)
Status: New => Triaged
** Changed in: linux (Ubuntu Zesty)
Status: New => Triaged
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1676679
Title:
datapath: Add missing case OVS_TUNNEL_KEY_ATTR_PAD
Status in The Ubuntu-power-systems project:
New
Status in linux package in Ubuntu:
Fix Committed
Status in openvswitch package in Ubuntu:
Confirmed
Status in linux source package in Yakkety:
Triaged
Status in openvswitch source package in Yakkety:
New
Status in linux source package in Zesty:
Triaged
Status in openvswitch source package in Zesty:
New
Bug description:
---Problem Description---
Recreate and error info:
Hit a new issue with OVS after updating to the Ubuntu 4.8 kernel from
the Ubuntu 4.4 kernel.
Iperf was used to send traffic between client VMs over VXLAN. The
traffic did still flow, but every packet had to go to user space due to
the flow creation failures, which drastically impacted performance and
cpu utilization.
When using VXLAN, the following error is showing up in dmesg
openvswitch: netlink: Unknown IP tunnel attribute 14
Also there are tons of these errors in the openvswitch log
2017-03-01T15:50:47.860Z|00018|dpif(handler164)|WARN|system@ovs-system:
failed to put[create] (Invalid argument)
ufid:2d1a9aeb-7b24-4235-a208-a01f98237e60 recirc_id(0),dp_hash(0/0),skb_pri
Debug showed that this attribute, OVS_TUNNEL_KEY_ATTR_PAD, was being
seen in the switch statement in method, static int ip_tun_from_nlattr,
in flow_netlink.c . Because there is no case for this attribute, the
default is hit and returns an error.
The issue was first seen using the packages in the Ubuntu 4.8 kernel,
which is OVS 2.5. OVS 2.6 and 2.6.1 were also tried with the kernel
packages and the same issue was seen. Tried building OVS 2.7 and
loading the openvswitch-datapath-dkms_2.7.0-1_all.deb that got built but
the issue persisted. The proposed patch seems to eliminate the error
messages and also fixed the segmentation and performance issues that
were seen.
---uname output---
stock 4.8 kernel
Machine Type = p8
---Debugger---
A debugger is not configured
---Steps to Reproduce---
Hit a new issue with OVS after updating to the Ubuntu 4.8 kernel from
the Ubuntu 4.4 kernel.
Iperf was used to send traffic between client VMs over VXLAN. The
traffic did still flow, but every packet had to go to user space due to
the flow creation failures, which drastically impacted performance and
cpu utilization.
When using VXLAN, the following error is showing up in dmesg
openvswitch: netlink: Unknown IP tunnel attribute 14
Link to the patch is https://patchwork.ozlabs.org/patch/738856/
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