kernel-packages team mailing list archive

[Blc+gentoo <1144322@xxxxxxxxxxxxxxxxxx>]

I've tried 3.12-rc2, as far as I can tell just opening and closing the
rfcomm in BT seems to no longer crash the box - however, some
characteristics changed and NetworkManager no longer accepts
/dev/rfcomm* as a valid communications device as before, so I can't
fully test it.

A bit tricky - using the same userland,

Linux-3.5.7-gentoo - works flawlessly
Linux-3.8.13-gentoo - crashes when BT rfcomm is closed
Linux-3.12-rc2 (raw from kernel.org) - blueman able to set up rfcomm but networkmanager does not notice that rfcomm was setup.  Supposedly NM should notify blueman via dbus that it acknowledges the device, but blueman times out waiting and NM does not recognize the device.  In trying to diagnose the problem I tried using busybox microcom on /dev/rfcomm0 directly.  I was able to send my modem AT commands like on previous kernels, indicating the bluetooth link indeed works.  I was able to shutdown the rfcomm link on blueman as well after sending those bytes through.  No crash - a positive sign... but it may depend on the number of bytes sent.

I'll need to see why NM does not like the rfcomm device now, but I am no
NM or dbus expert...

-- 
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/1144322

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

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” package in Arch Linux:
  New
Status in Gentoo Linux:
  Unknown

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" :
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1144322/+attachment/3761201/+files/hardinfo
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.3
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1880 F.... pulseaudio
   /dev/snd/seq:        timidity   1424 F.... timidity
  Card0.Amixer.info:
   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)
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   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
  PulseList:
   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.
  RelatedPackageVersions:
   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)
  UserGroups:
   
  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

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1144322/+subscriptions