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[Bug 1358704] Re: Atheros AR8161[1969:1091] and AR8162 [1969:1090] mac address would change after powered off for a while


Hi Liming Wang,
I just checked this issue on 201202-10511, and yes its mac address changed to another valid address again
from 16:d7:b7:eb:83:44 to b6:b7:0d:39:89:b7

I think it would change if you power it off and leave it there for a
while (a couple weeks, I guess)

I don't know when does the BIOS get the valid address, I can't see the mac address from the BIOS setup.
Tried with PXE boot, the new mac address (b6:b7:0d:39:89:b7) could be seen there.

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  Atheros AR8161[1969:1091] and AR8162 [1969:1090] mac address would
  change after powered off for a while

Status in HWE Next Project:
Status in linux-lts-trusty package in Ubuntu:

Bug description:
  CID: 201202-10508 
  CID: 201202-10511
  CID: 201202-10527

  The MAC address would change after you power off the system for a
  while (few days)

  201202-10508 and 201202-10511 equipped with AR8162 [1969:1090]
  201202-10527 equipped with AR8161[1969:1091]

  I found this issue when trying to install 12.04.5 via PXE network installation.
  The MAC address changing pattern is interesting, there is a common address they will change into - 00:13:74:00:00:00

  This looks like a HW issue, but I'm not very confident about it.

  Maybe not a big deal, but this issue would prevent these system from
  being selected into our SRU pool, the worse scenario is that this
  system is attached to a MAC-address-registered network (my dormitory
  network back into university require users to register they MAC

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57~precise1 [modified: boot/vmlinuz-3.13.0-32-generic]
  ProcVersionSignature: Ubuntu 3.13.0-32.57~precise1-generic
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Tue Aug 19 06:00:11 2014
  InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release amd64 (20140807.1)
  MarkForUpload: True
   PATH=(custom, no user)
  SourcePackage: linux-lts-trusty
  UpgradeStatus: No upgrade log present (probably fresh install)

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