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[Bug 1346067] Re: [Dell Latitude E5440] O2 Card reader [1217:8520] could not be detected after rebooting this system


Hi Peter,
This system is unable to dump all information from lspci -vxxx under root privilege, seems that it will freeze silently in the middle of that command (in both 3.13 and 3.16)

I tried to run "lspci -vxxxx | more" to see when it will freeze,  it
truns out that this happened on dumping:

00:1c.3 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 4 (rev e4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=02, subordinate=06, sec-latency=0
	I/O behind bridge: 0000c000-0000dfff
	Memory behind bridge: f6000000-f6bfffff
	Prefetchable memory behind bridge: 00000000f0000000-00000000f07fffff
	Capabilities: [40] Express Root Port (Slot+), MSI 00
	Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
	Capabilities: [90] Subsystem: Dell Device 05de
	Capabilities: [a0] Power Management version 3
	Capabilities: [100] #00
	Capabilities: [200] L1 PM Substates
	Kernel driver in use: pcieport
4f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

The next line will make this happen
(The attached lspci.2 output is created manually during the "lspci -vxxxx | more" session)

** Attachment added: "lspci.2"

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  [Dell Latitude E5440] O2 Card reader [1217:8520] could not be detected
  after rebooting this system

Status in HWE Next Project:
Status in “linux” package in Ubuntu:
  In Progress

Bug description:
  CID: 201307-14017 Dell Latitude E5440

  The O2 card reader, O2 Micro, Inc. SD/MMC Card Reader Controller [1217:8520] (rev 01)
  is not stable on this system, the card reader cannot be detected.
  It works normally after reboot, but will be gone if you reboot it one more time

  1. Install 14.04 + update (3.13.0-32), boot to desktop
  2. Run lspci -nn to see if the card reader is there
  3. Insert a SD card
  4. Reboot, go through step 2 and 3 again

  Expected result:
  * Card reader should be found in lspci output, SD card should be mounted automatically

  Actual result:
  * Nothing happened, the card was not detected at all
  * On step 4, the card reader works, if rebooted again, it will be gone.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
   /dev/snd/controlC0:  ubuntu     1398 F.... pulseaudio
   /dev/snd/controlC1:  ubuntu     1398 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Jul 21 04:07:31 2014
  HibernationDevice: RESUME=UUID=730e0474-ac0b-4fc6-a321-6203c9b07a19
  InstallationDate: Installed on 2014-07-21 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Dell Inc. Latitude E5440
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic.efi.signed root=UUID=b55056b7-f859-4273-9793-12757a75c5ee ro quiet splash vt.handoff=7
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.4
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/26/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 01348S
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X02
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd06/26/2014:svnDellInc.:pnLatitudeE5440:pvr01:rvnDellInc.:rn01348S:rvrX02:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E5440
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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