kernel-packages team mailing list archive

[Constantine Peresypkin <constantine.peresypk@xxxxxxxxxxxxx>]

Public bug reported:

when using the combo of Intel 6205N (IBM ThinkPad T430s) and TP-Link TL-
WDR4300 router there is a problem of sudden loss of connectivity after a
"bandwidth change" event is registered by wifi module.

In log:
Feb 10 13:09:28 lenovo kernel: [1981878.856612] wlan0: AP <redacted> changed bandwidth, new config is 2462 M
Hz, width 1 (2462/0 MHz)
Feb 10 13:09:31 lenovo kernel: [1981881.929193] wlan0: AP <redacted> changed bandwidth, new config is 2462 M
Hz, width 2 (2452/0 MHz)

After that point no frames are coming from the router. I.e. even ARP is
not resolving, although the wifi connection seems to look fine in
NetworkManager. Restarting networking or killing wpa_supplicant solves
the problem for a while.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-extra-3.13.0-38-generic 3.13.0-38.65
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  kit        2467 F.... pulseaudio
CRDA:
 country IL:
 	(2402 - 2482 @ 40), (N/A, 20)
 	(5150 - 5250 @ 40), (N/A, 23), NO-OUTDOOR
 	(5250 - 5350 @ 40), (N/A, 23), NO-OUTDOOR, DFS
CurrentDesktop: Unity
Date: Tue Feb 10 13:19:45 2015
HibernationDevice: RESUME=UUID=5719e2ac-f0f6-464f-99cf-f732c3ec9606
InstallationDate: Installed on 2014-01-28 (378 days ago)
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
MachineType: LENOVO 235389G
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-45-generic.efi.signed root=UUID=0c5e577c-b641-490c-ae43-f88b134fe24a ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-45-generic N/A
 linux-backports-modules-3.13.0-45-generic  N/A
 linux-firmware                             1.127.11
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-09-07 (156 days ago)
dmi.bios.date: 02/18/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G7ET92WW (2.52 )
dmi.board.asset.tag: Not Available
dmi.board.name: 235389G
dmi.board.vendor: LENOVO
dmi.board.version: Win8 Pro DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrG7ET92WW(2.52):bd02/18/2013:svnLENOVO:pn235389G:pvrThinkPadT430s:rvnLENOVO:rn235389G:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 235389G
dmi.product.version: ThinkPad T430s
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug package-from-proposed third-party-packages trusty

-- 
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https://bugs.launchpad.net/bugs/1420243

Title:
  iwlwifi + intel 6205 + tp-link 4300: bandwidth changed = host
  unreachable

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  when using the combo of Intel 6205N (IBM ThinkPad T430s) and TP-Link
  TL-WDR4300 router there is a problem of sudden loss of connectivity
  after a "bandwidth change" event is registered by wifi module.

  In log:
  Feb 10 13:09:28 lenovo kernel: [1981878.856612] wlan0: AP <redacted> changed bandwidth, new config is 2462 M
  Hz, width 1 (2462/0 MHz)
  Feb 10 13:09:31 lenovo kernel: [1981881.929193] wlan0: AP <redacted> changed bandwidth, new config is 2462 M
  Hz, width 2 (2452/0 MHz)

  After that point no frames are coming from the router. I.e. even ARP
  is not resolving, although the wifi connection seems to look fine in
  NetworkManager. Restarting networking or killing wpa_supplicant solves
  the problem for a while.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-extra-3.13.0-38-generic 3.13.0-38.65
  ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
  Uname: Linux 3.13.0-45-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  kit        2467 F.... pulseaudio
  CRDA:
   country IL:
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5150 - 5250 @ 40), (N/A, 23), NO-OUTDOOR
   	(5250 - 5350 @ 40), (N/A, 23), NO-OUTDOOR, DFS
  CurrentDesktop: Unity
  Date: Tue Feb 10 13:19:45 2015
  HibernationDevice: RESUME=UUID=5719e2ac-f0f6-464f-99cf-f732c3ec9606
  InstallationDate: Installed on 2014-01-28 (378 days ago)
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  MachineType: LENOVO 235389G
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-45-generic.efi.signed root=UUID=0c5e577c-b641-490c-ae43-f88b134fe24a ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-45-generic N/A
   linux-backports-modules-3.13.0-45-generic  N/A
   linux-firmware                             1.127.11
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-09-07 (156 days ago)
  dmi.bios.date: 02/18/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G7ET92WW (2.52 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 235389G
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 Pro DPK TPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG7ET92WW(2.52):bd02/18/2013:svnLENOVO:pn235389G:pvrThinkPadT430s:rvnLENOVO:rn235389G:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 235389G
  dmi.product.version: ThinkPad T430s
  dmi.sys.vendor: LENOVO

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