kernel-packages team mailing list archive

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

Martin Smith, let the scope of this report be only the kernel call trace
mentioned in the Description.

Regarding errors noticed in logs, this is not typically considered a
bug, especially considering there is no noticed usability impact.

Pivoting back to the call trace, the next step is to fully reverse
commit bisect from kernel 4.2 to 4.3-rc3 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

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1501993

Title:
  drivers/gpu/drm/i915/intel_display.c:12326
  check_crtc_state+0x2c5/0x440 [i915]()

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm seeing a kernel hang when I 'dock' my laptop into my docking station; this happens with 4.2, specifically with:
  linux-image-extra-4.2.0-11-generic
  linux-image-extra-4.2.0-12-generic
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1501993/+attachment/4483862/+files/kern.log

  At this point I lose video, and can't do much else without a hard
  reboot back to linux-image-extra-3.19.0-30-generic.

  ---
  ApportVersion: 2.19-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  mart6985   1824 F.... pulseaudio
   /dev/snd/controlC0:  mart6985   1824 F.... pulseaudio
  DistroRelease: Ubuntu 15.10
  HibernationDevice: RESUME=UUID=ef25a70d-08ea-4cfb-a7a0-ab30671365cc
  InstallationDate: Installed on 2014-07-02 (456 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Dell Inc. Latitude E7440
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-30-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-30.33-generic 3.19.8-ckt6
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-30-generic N/A
   linux-backports-modules-3.19.0-30-generic  N/A
   linux-firmware                             1.148
  Tags:  wily
  Uname: Linux 3.19.0-30-generic x86_64
  UpgradeStatus: Upgraded to wily on 2015-09-29 (3 days ago)
  UserGroups:

  _MarkForUpload: True
  dmi.bios.date: 02/02/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A14
  dmi.board.name: 03HFCG
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA14:bd02/02/2015:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn03HFCG:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E7440
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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