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[Bug 1504154] ProcModules.txt

 

apport information

** Attachment added: "ProcModules.txt"
   https://bugs.launchpad.net/bugs/1504154/+attachment/4488719/+files/ProcModules.txt

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Title:
  OVS with GRE tunnels no longer works

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I have OpenStack environment with OVS with GRE tunnels between Compute
  nodes.

  All nodes OpenStack nodes have:
  Description:	Ubuntu 14.04.2 LTS
  Release:	14.04

  After upgrading kernel from 3.13.0-45 to 3.13.0-46 on one Compute node OpenStack networking on this node no longer works.
  It also does not work on any newer version up to 3.13.0-65.

  Everything looks OK, bridges and ports are configured in OVS, but
  there is no communication - VMs can't receive network configuration
  from DHCP agent running on another server.

  The same is with 3.16 kernel:

  Last working version is 3.16.0-30.
  With version 3.16.0-31and newer up to 3.16.0-50 network communication does not work.

  I analyzed changes included in 3.13.0-46 and 3.16.0-31 and both have the same change regarding GRE:
  * gre: fix the inner mac header in nbma tunnel xmit path

  Maybe this is the reason?
  --- 
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Oct  8 15:38 seq
   crw-rw---- 1 root audio 116, 33 Oct  8 15:38 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.14.1-0ubuntu3.7
  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:
  CRDA: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=/dev/mapper/stack--nova03--vg-swap_1
  InstallationDate: Installed on 2015-06-25 (105 days ago)
  InstallationMedia: Ubuntu-Server 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: Dell Inc. PowerEdge R710
  Package: linux (not installed)
  PciMultimedia:
   
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-30-generic root=/dev/mapper/stack--nova03--vg-root ro
  ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-generic 3.16.7-ckt3
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-30-generic N/A
   linux-backports-modules-3.16.0-30-generic  N/A
   linux-firmware                             1.127.11
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  trusty
  Uname: Linux 3.16.0-30-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  dmi.bios.date: 07/23/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 6.4.0
  dmi.board.name: 0N047H
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A03
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr6.4.0:bd07/23/2013:svnDellInc.:pnPowerEdgeR710:pvr:rvnDellInc.:rn0N047H:rvrA03:cvnDellInc.:ct23:cvr:
  dmi.product.name: PowerEdge R710
  dmi.sys.vendor: Dell Inc.

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References