[Expired for linux (Ubuntu) because there has been no activity for 60

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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  guest on bridge becomes inaccessible

Status in linux package in Ubuntu:

Bug description:
  We have a "virtual maas" setup where we have a maas node on a linux
  bridge (created by libvirt) and some other number of nodes on that
  same bridge.

  the maas node then controls the other nodes turning them on and off
  and generally working maas-like magic.

  In this scenario on 16.04 with when deploying 3 or so nodes at a time,
  the maas node becomes inaccessible, and as it is the root device for
  iscsi storage of the installs, the nodes fail also.

  This occurred with xenial kernel (4.4).
  Reverting the kernel to 3.19 (linux-lts-vivid) kernel fixes the problem.
  Specifically, the fixed kernel is
  $ dpkg-query --show | grep linux-.*3.19
  linux-image-3.19.0-66-generic   3.19.0-66.74~14.04.1
  linux-image-extra-3.19.0-66-generic     3.19.0-66.74~14.04.1

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-34-generic 4.4.0-34.53
  ProcVersionSignature: Ubuntu 3.19.0-66.74~14.04.1-generic 3.19.8-ckt22
  Uname: Linux 3.19.0-66-generic ppc64le
   total 0
   crw-rw---- 1 root audio 116,  1 Aug 25 12:10 seq
   crw-rw---- 1 root audio 116, 33 Aug 25 12:10 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: ppc64el
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Thu Aug 25 14:37:07 2016
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
   Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   PATH=(custom, no user)
  ProcKernelCmdLine: root=/dev/mapper/mpath0-part2 ro console=hvc0
  ProcLoadAvg: 0.40 0.28 0.46 1/1337 140794
   Filename                             Type            Size    Used    Priority
   /swap.img                               file         8388544 0       -1
  ProcVersion: Linux version 3.19.0-66-generic (buildd@bos01-ppc64el-021) (gcc 
version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3) ) #74~14.04.1-Ubuntu SMP Tue Jul 
19 19:54:47 UTC 2016
   linux-restricted-modules-3.19.0-66-generic N/A
   linux-backports-modules-3.19.0-66-generic  N/A
   linux-firmware                             1.157.3
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  cpu_cores: Number of cores present = 20
  cpu_coreson: Number of cores online = 20
  cpu_dscr: DSCR is 0
   min: 3.667 GHz (cpu 120)
   max: 3.691 GHz (cpu 0)
   avg: 3.689 GHz
   Could not retrieve current diagnostics mode,
   No kernel interface to firmware
  cpu_smt: SMT is off

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