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[Alex Hung <1434014@xxxxxxxxxxxxxxxxxx>]

I noticed that it is an AMD platform (i.e. A+A).  It is quite normal
that AMD's iGPU requires more memory than Intel's (because it is also
more powerful).  This should be a normal behaviours.

This can depend on hardware design, but the iGPU device allocates 256M
memory space (see lspci or below) and I am also guessing this is the
system memory dedicated to iGPU.  If the 256M system memory is taken
into consideration, ex.  the calculation becomes (4x1024 - 256) /
(3.13x1024) = 83.4%, this passes the criteria.


00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri [Radeon R5 Graphics] [1002:1318] (prog-if 00 [VGA controller])
	Subsystem: Lenovo Device [17aa:5111]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 32 bytes
	Interrupt: pin A routed to IRQ 89
	Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Region 2: Memory at f0000000 (64-bit, prefetchable) [size=8M]
	Region 4: I/O ports at 4000 [size=256]
	Region 5: Memory at f0c00000 (32-bit, non-prefetchable) [size=256K]
	Expansion ROM at f0c60000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: radeon

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https://bugs.launchpad.net/bugs/1434014

Title:
  [Lenovo E450] Run test case 'memory/info' is failed.

Status in HWE Next Project:
  Incomplete
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  CID : 201407-15368 Lenovo E450 (A+A) with 14.04.2 (utopic)

  Steps:
  1. Install 14.04.2 on E450
  2. Install Plainbox and run test case 'memory/info'. (This test checks the amount of memory which is reporting in meminfo against the size of the memory modules detected by DMI.)

  Expected result:
  Test result should be pass.

  Actual result:

   /proc/meminfo reports:	3.13GiB
   lshw reports:	4GiB

  FAIL: Meminfo reports 930258944 less than lshw, a difference of
  21.66%. Only a variance of 20% in reported memory is allowed.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-30-generic 3.16.0-30.40~14.04.1 [modified: boot/vmlinuz-3.16.0-30-generic]
  ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-generic 3.16.7-ckt3
  Uname: Linux 3.16.0-30-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Mar 19 06:28:49 2015
  InstallationDate: Installed on 2015-03-18 (1 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  u          1795 F.... pulseaudio
   /dev/snd/controlC0:  u          1795 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=2f251004-2f34-4325-bd4f-540d347d0285
  InstallationDate: Installed on 2015-05-26 (0 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: LENOVO 20DEZ08ZUS
  Package: linux (not installed)
  ProcFB:
   0 radeondrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-30-generic root=UUID=80051895-d940-42e6-b728-40a4fd8ce1c7 ro quiet splash vt.handoff=7
  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
  Tags:  trusty
  Uname: Linux 3.16.0-30-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 10/17/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: HTET37WW (1.09 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20DEZ08ZUS
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 PRO
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrHTET37WW(1.09):bd10/17/2014:svnLENOVO:pn20DEZ08ZUS:pvrThinkPadE455:rvnLENOVO:rn20DEZ08ZUS:rvrSDK0E50510PRO:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20DEZ08ZUS
  dmi.product.version: ThinkPad E455
  dmi.sys.vendor: LENOVO

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