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[Bug 1473747] Re: [Dell Precision M6800] O2 Micro: SD card is unable to mount

 

EEngineer, the next step is to fully reverse commit bisect from kernel
3.13 to 4.2-rc2 in order to identify the last bad commit, followed
immediately by the first good one. Once this commit has been identified,
then it may be reviewed as a candidate for backporting into your
release. Could you please do this following
https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F
?

Please note, finding adjacent kernel versions is not fully commit
bisecting.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Tags added: bios-outdated-a14 kernel-fixed-upstream-4.2-rc2 needs-
reverse-bisect

** Attachment removed: "lspci-vnvn.log"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1473747/+attachment/4427949/+files/lspci-vnvn.log

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

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https://bugs.launchpad.net/bugs/1473747

Title:
  [Dell Precision M6800] O2 Micro: SD card is unable to mount

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Similar symptoms to #730820

  Unable to mount SD card.  Used to work 6+ months ago.  Tried 5+ SD
  cards, all of which work on other devices.  Tried options sdhci
  debug_quirks=0x40 to no avail.

  Ubuntu 3.13.0-55.94-generic 3.13.11-ckt20

  dmesg only states:
  [  332.609398] mmc0: ADMA error
  [  332.611516] mmc0: error -5 whilst initialising SD card

  lspci:
  11:00.0 SD Host controller [0805]: O2 Micro, Inc. SD/MMC Card Reader Controller [1217:8520] (rev 01) (prog-if 01)
          Subsystem: Dell Device [1028:05cd]
  ---
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  jchang     2502 F.... pulseaudio
   /dev/snd/controlC0:  jchang     2502 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=59c491e0-9216-41db-91ff-56d842299109
  InstallationDate: Installed on 2015-01-13 (180 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Dell Inc. Precision M6800
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-55-generic root=UUID=d05ae190-d2d7-4138-b427-e42aff3b4b44 ro quiet splash processor.ignore_ppc=1
  ProcVersionSignature: Ubuntu 3.13.0-55.94-generic 3.13.11-ckt20
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-55-generic N/A
   linux-backports-modules-3.13.0-55-generic  N/A
   linux-firmware                             1.127.12
  Tags:  trusty
  Uname: Linux 3.13.0-55-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm lpadmin sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 01/29/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A13
  dmi.board.name: 0XWC1M
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA13:bd01/29/2015:svnDellInc.:pnPrecisionM6800:pvr01:rvnDellInc.:rn0XWC1M:rvr:cvnDellInc.:ct9:cvr:
  dmi.product.name: Precision M6800
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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