kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Blackgr, the next step is to fully commit bisect from kernel 4.1.8 to
4.1.9 in order to identify the last good kernel commit, followed
immediately by the first bad one. This will allow for a more expedited
analysis of the root cause of your issue. Could you please do this
following https://wiki.ubuntu.com/Kernel/KernelBisection ?

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: needs-bisect regression-release

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

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https://bugs.launchpad.net/bugs/1523178

Title:
  SD card reader on Dell E7450 doesn't work in Ubuntu 15.10

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Under ubuntu 15.10 I can't use my Sandisk ultra 64GB microSD (with a
  SD card adapter) with the built in SD card reader. I seem to be
  getting the following errors.

  [ 1268.126602] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock
  [ 1268.128381] mmc0: tuning execution failed
  [ 1268.128386] mmc0: error -5 whilst initialising SD card
  [ 1268.554319] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock
  [ 1268.556098] mmc0: tuning execution failed
  [ 1268.556103] mmc0: error -5 whilst initialising SD card
  [ 1268.993995] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock
  [ 1268.995778] mmc0: tuning execution failed
  [ 1268.995786] mmc0: error -5 whilst initialising SD card
  [ 1269.453666] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock
  [ 1269.455449] mmc0: tuning execution failed
  [ 1269.455458] mmc0: error -5 whilst initialising SD card

  It was working fine under vivid with kernel 3.19.

  Went through all the kernels from 3.19 to 4.2
  (http://kernel.ubuntu.com/~kernel-ppa/) and found out that until
  4.1.8-040108-generic the SD card reader would play fine and only after
  I put 4.1.9 and on I started getting the errors.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-19-generic 4.2.0-19.23
  ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
  Uname: Linux 4.2.0-19-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  alex       1606 F.... pulseaudio
   /dev/snd/controlC0:  alex       1606 F.... pulseaudio
   /dev/snd/controlC1:  alex       1606 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Dec  6 01:40:18 2015
  HibernationDevice: RESUME=UUID=acf75838-59f9-4461-9fe4-e9bdf33b28be
  InstallationDate: Installed on 2015-10-27 (38 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  MachineType: Dell Inc. Latitude E7450
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-19-generic root=UUID=c654e4bc-b0e1-4a85-844f-99f068b2efff ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-19-generic N/A
   linux-backports-modules-4.2.0-19-generic  N/A
   linux-firmware                            1.149.3
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-11-04 (31 days ago)
  dmi.bios.date: 10/28/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A08
  dmi.board.name: 0R1VJD
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA08:bd10/28/2015:svnDellInc.:pnLatitudeE7450:pvr:rvnDellInc.:rn0R1VJD:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E7450
  dmi.sys.vendor: Dell Inc.

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