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[Brian Seiler <ketsusa@xxxxxxxxx>]

This problem occurred when I first attempted to enable 'Additional
Drivers' to enable use of the wireless card.

The driver Broadcom Corporation: AirPort Extreme 
Using Broadcom 802.11 Linux STA wireless driver source from bcmwl-kernel-source(proprietary)
seems to have caused the problem.


I have not been able to replicate the issue.  Enabled and disabled the driver multiple times without replication of the problem.

Updated to mainstream kernel 3.13.5-031305-generic  still no issues
enabling and disabling said driver.

This seems to have been a fluke.  Currently wireless is working well, no
repeated issues.

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https://bugs.launchpad.net/bugs/1287499

Title:
  BUG: unable to handle kernel NULL pointer dereference at
  (null)

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  This happened after I enabled the wireless driver for this Black
  MacBook 4,1

  ProblemType: KernelOops
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-14-generic 3.13.0-14.34
  ProcVersionSignature: Ubuntu 3.13.0-14.34-generic 3.13.5
  Uname: Linux 3.13.0-14-generic x86_64
  NonfreeKernelModules: wl
  Annotation: Your system might become unstable now and might need to be restarted.
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  brian      1703 F.... pulseaudio
  CurrentDmesg: [   44.610920] systemd-hostnamed[1958]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
  Date: Mon Mar  3 21:17:06 2014
  DuplicateSignature: BUG: unable to handle kernel NULL pointer dereference at           (null) RIP: 0010:location  location intel_crtc_set_config+0x409/0x9a0 [i915]
  Failure: oops
  HibernationDevice: RESUME=UUID=bb920483-b5fc-4dc5-824a-ceb531ff2767
  InstallationDate: Installed on 2014-03-04 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64+mac (20140224)
  MachineType: Apple Inc. MacBook4,1
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-14-generic root=UUID=ca730496-741f-45f4-a181-1d6a8b8b240a ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-3ubuntu4
  SourcePackage: linux
  Title: BUG: unable to handle kernel NULL pointer dereference at           (null)
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/09/08
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MB41.88Z.00C1.B00.0802091535
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Mac-F22788A9
  dmi.board.vendor: Apple Inc.
  dmi.board.version: PVT
  dmi.chassis.asset.tag: Asset Tag#
  dmi.chassis.type: 2
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-F22788A9
  dmi.modalias: dmi:bvnAppleInc.:bvrMB41.88Z.00C1.B00.0802091535:bd02/09/08:svnAppleInc.:pnMacBook4,1:pvr1.0:rvnAppleInc.:rnMac-F22788A9:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788A9:
  dmi.product.name: MacBook4,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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