[Bug 976288] Re: Bluetooth adapter fails to work after resume

[Alexander Hall]

** Description changed:

  Device is recognized by hcitool/hciconfig. Bluetooth GUI indicates that
  Bluetooth is disabled, and cannot be enabled. There is a crash log with
- a stack trace in dmesg.
+ a stack trace in dmesg (found in "CurrentDmesg.txt", starting at
+ 9822.016244). Using patched kernel to solve shutdown/resume issue from
+ here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/944772
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: bluetooth (not installed)
  ProcVersionSignature: Ubuntu 3.2.0-22.35~lp944772-generic 3.2.14
  Uname: Linux 3.2.0-22-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0-0ubuntu4
  Architecture: amd64
  Date: Sat Apr  7 20:04:39 2012
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  InterestingModules: btusb bnep rfcomm bluetooth
  MachineType: Hewlett-Packard HP Pavilion dv6700 Notebook PC
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-22-generic root=UUID=29806a0e-3742-4e63-b441-7b06a74c1231 ro quiet splash vt.handoff=7
  SourcePackage: bluez
  UpgradeStatus: Upgraded to precise on 2012-04-01 (6 days ago)
  dmi.bios.date: 06/16/2008
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.58
  dmi.board.name: 30D2
  dmi.board.vendor: Quanta
  dmi.board.version: 79.2E
  dmi.chassis.type: 10
  dmi.chassis.vendor: Quanta
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.58:bd06/16/2008:svnHewlett-Packard:pnHPPaviliondv6700NotebookPC:pvrRev1:rvnQuanta:rn30D2:rvr79.2E:cvnQuanta:ct10:cvrN/A:
  dmi.product.name: HP Pavilion dv6700 Notebook PC
  dmi.product.version: Rev 1
  dmi.sys.vendor: Hewlett-Packard

** Description changed:

  Device is recognized by hcitool/hciconfig. Bluetooth GUI indicates that
  Bluetooth is disabled, and cannot be enabled. There is a crash log with
  a stack trace in dmesg (found in "CurrentDmesg.txt", starting at
  9822.016244). Using patched kernel to solve shutdown/resume issue from
  here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/944772
+ 
+ Important/Relevant lines from Dmesg:
+ 
+ [11779.955253] WARNING: at /home/jsalisbury/bugs/lp944772/ubuntu-precise/fs/sysfs/dir.c:481 sysfs_add_one+0xc0/0xf0()
+ [11779.955266] sysfs: cannot create duplicate filename '/class/bluetooth/hci0:21'
+ [11779.955693] Bluetooth: Failed to register connection device
+ [11780.212496] BUG: unable to handle kernel NULL pointer dereference at 0000000000000079
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: bluetooth (not installed)
  ProcVersionSignature: Ubuntu 3.2.0-22.35~lp944772-generic 3.2.14
  Uname: Linux 3.2.0-22-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0-0ubuntu4
  Architecture: amd64
  Date: Sat Apr  7 20:04:39 2012
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  InterestingModules: btusb bnep rfcomm bluetooth
  MachineType: Hewlett-Packard HP Pavilion dv6700 Notebook PC
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-22-generic root=UUID=29806a0e-3742-4e63-b441-7b06a74c1231 ro quiet splash vt.handoff=7
  SourcePackage: bluez
  UpgradeStatus: Upgraded to precise on 2012-04-01 (6 days ago)
  dmi.bios.date: 06/16/2008
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.58
  dmi.board.name: 30D2
  dmi.board.vendor: Quanta
  dmi.board.version: 79.2E
  dmi.chassis.type: 10
  dmi.chassis.vendor: Quanta
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.58:bd06/16/2008:svnHewlett-Packard:pnHPPaviliondv6700NotebookPC:pvrRev1:rvnQuanta:rn30D2:rvr79.2E:cvnQuanta:ct10:cvrN/A:
  dmi.product.name: HP Pavilion dv6700 Notebook PC
  dmi.product.version: Rev 1
  dmi.sys.vendor: Hewlett-Packard

** Tags added: bluetooth crash sysfs

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

** Tags added: null pointer

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https://bugs.launchpad.net/bugs/976288

Title:
  Bluetooth adapter fails to work after resume

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