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[Bug 1144322]


I think we finally have a winner patchset here.

On Linux-Bluetooth there are two patches that showed up that, when
patched against 3.12.6, seemingly completely fixes the longstanding
problem.  I don't know when these will show up in mainline.

The patch names are "rfc3.patch" and "modman.patch" from Gianluca
Anzolin.  I'll attach the patches here.

Thanks for all of Gentoo staff for tolerating bugs like this.  I've been
posting in the Ubuntu forums about this and all I get is flak.

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  [Toshiba Satellite A80] Kernel 3.8.x Panic when disconnecting from
  network manager via ppp0

Status in “linux” package in Ubuntu:
Status in “linux” package in Arch Linux:
Status in Gentoo Linux:

Bug description:
  Using: "Ubuntu 12.04 (precise) 32-bit" Machine: Laptop / old Toshiba / Celeron processor
  Installing Kernel from: "http://kernel.ubuntu.com/~kernel-ppa/mainline/";

  Apport disabled and uninstalled, so can't provide debug/log details
  (this to make the machine run a bit faster, have been doing so since
  10.04). Have no problem with Kernel upto 3.7.10 (have been upgrading
  to Kernel 3.5/3.6/3.7/3.8, when ever new builds are available) But
  when using Kernel 3.8.0/3.8.1/3.8.2, get Kernel Panic & machine
  crashes & freezes, have to hard boot.

  Machine connects to net using "ppp0" (modem on phone), then if you
  disconnect  the modem "ppp0" & try to reconnect, the Kernel Panics &
  crashes, or then if you disconnect by unchecking "Enable Networking" &
  then rechecking "Enable Networking", the Kernel Panics & crashes.

  First faced this problem with Kernel 3.8.0 so went back to using
  3.7.9, then same story repeated with Kernel 3.8.1 & 3.8.2, currently
  using Kernel 3.7.10. Think there is some REGRESSION in Kernel 3.8

  below details are provided using "HardInfo 0.5.1" :
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.3
  Architecture: i386
   /dev/snd/controlC0:  ubuntu     1880 F.... pulseaudio
   /dev/snd/seq:        timidity   1424 F.... timidity
   Card hw:0 'ICH6'/'Intel ICH6 with ALC250 at irq 17'
     Mixer name	: 'Realtek ALC250 rev 2'
     Components	: 'AC97a:414c4752'
     Controls      : 33
     Simple ctrls  : 21
  DistroRelease: Ubuntu 12.04
  MachineType: TOSHIBA Satellite A80
  MarkForUpload: True
  Package: linux (not installed)
   Socket 0:
     no product info available
   Socket 0:
     no card
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-51-generic-pae root=UUID=4dda5c0a-3583-45f5-b6c4-b5aef19935c8 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-51.77-generic-pae 3.2.48
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/ubuntu not ours.
   No PulseAudio daemon running, or not running as session daemon.
   linux-restricted-modules-3.2.0-51-generic-pae N/A
   linux-backports-modules-3.2.0-51-generic-pae  N/A
   linux-firmware                                1.79.6
  Tags:  precise
  Uname: Linux 3.2.0-51-generic-pae i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/25/2006
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: V2.80
  dmi.board.name: EAT10/EAT20
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Null
  dmi.chassis.asset.tag: *
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnTOSHIBA:bvrV2.80:bd10/25/2006:svnTOSHIBA:pnSatelliteA80:pvrPSA80L-043003:rvnTOSHIBA:rnEAT10/EAT20:rvrNull:cvnTOSHIBA:ct10:cvrN/A:
  dmi.product.name: Satellite A80
  dmi.product.version: PSA80L-043003
  dmi.sys.vendor: TOSHIBA

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