kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

JD Rogers, could you please confirm this issue exists with the latest
development release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains,
please just make a comment to this.

If reproducible, could you also please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-3.14-rc3

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** Tags removed: bios-outdated-2.58
** Tags added: latest-bios-2.58

** Tags added: needs-upstream-testing

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https://bugs.launchpad.net/bugs/1281729

Title:
  8086:4238 [Lenovo ThinkPad T430s] iwlwifi using 802.11n associates
  with access point but network is unreachable

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  While the above bug appears to connect and then slow down eventually
  failing with packet loss, my problem is almost the opposite. If I can
  connect, it seems to work fine indefinitely, but initial connections
  (after suspend, or right after a reboot) only occasionally works.
  Sometimes, if I wait long enough the connection starts working after
  several minutes, sometimes it works if I turn off wireless and turn it
  back on, but often it just never works. According to dmesg, iwlwifi is
  associating with the access point just fine, but if I ping the ap, I
  get "netowrk unreachable".

  WORKAROUND: 11n_disable=1

  After associating, dmesg report:
  # dmesg |tail
  [101704.467324] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
  [101704.474053] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
  [101704.621429] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
  [101704.717787] wlan0: authenticate with xx:xx:xx:xx:xx:xx
  [101704.780532] wlan0: send auth to xx:xx:xx:xx:xx:xx (try 1/3)
  [101704.793246] wlan0: authenticated
  [101704.797390] wlan0: associate with xx:xx:xx:xx:xx:xx (try 1/3)
  [101704.798226] wlan0: RX AssocResp from xx:xx:xx:xx:xx:xx (capab=0x1011 status=0 aid=1)
  [101704.802300] wlan0: associated
  [101704.802347] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

  But network is unreachable.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-15-generic 3.11.0-15.25
  ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jdrogers   2276 F.... pulseaudio
  Date: Tue Feb 18 12:12:57 2014
  HibernationDevice: RESUME=UUID=12dd9e3a-ab8c-468f-a7bc-f3c05e4bcddc
  InstallationDate: Installed on 2014-01-01 (47 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: LENOVO 2352CTO
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-15-generic root=UUID=b9c20532-4cfc-4833-830a-3d4500621c0e ro rootflags=subvol=@ quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116.2
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/24/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G7ET29WW (1.11 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2352CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG7ET29WW(1.11):bd05/24/2012:svnLENOVO:pn2352CTO:pvrThinkPadT430s:rvnLENOVO:rn2352CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2352CTO
  dmi.product.version: ThinkPad T430s
  dmi.sys.vendor: LENOVO

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