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[Bug 984552] Re: [8086:0085] intermittently losing connectivity

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claudio, you wouldn't have the same issue as this bug report is Status Fixed Released, and is considered closed. For more on this, please see https://wiki.ubuntu.com/Bugs/Status . So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into the default Ubuntu kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

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https://bugs.launchpad.net/bugs/984552

Title:
  [8086:0085] intermittently losing connectivity

Status in “linux” package in Ubuntu:
  Fix Released

Bug description:
  I'm seeing intermittent loss of connectivity, where there are no
  errors, the connection stays "up" but packets are no longer getting
  through.

  I've tried going back through the past few kernels, and the problem is
  consistent from 3.2.0-19.30 through 3.2.0-23.36 (which seems to be
  current). I see no errors in dmesg or other indications of what's
  going wrong, but It's very easily reproducible, as it happens all the
  time. I lose connectivity about once every 30 seconds, for about 30
  seconds, i.e. it's down 50% of the time.

  tutti:[~] ping -I wlan0 192.168.0.1
  PING 192.168.0.1 (192.168.0.1) from 192.168.0.157 wlan0: 56(84) bytes of data.
  64 bytes from 192.168.0.1: icmp_req=32 ttl=64 time=2.83 ms
  64 bytes from 192.168.0.1: icmp_req=33 ttl=64 time=2.85 ms
  64 bytes from 192.168.0.1: icmp_req=34 ttl=64 time=2.85 ms
  64 bytes from 192.168.0.1: icmp_req=35 ttl=64 time=2.92 ms
  64 bytes from 192.168.0.1: icmp_req=36 ttl=64 time=2.80 ms
  64 bytes from 192.168.0.1: icmp_req=37 ttl=64 time=2.82 ms
  64 bytes from 192.168.0.1: icmp_req=38 ttl=64 time=2.99 ms
  64 bytes from 192.168.0.1: icmp_req=39 ttl=64 time=3.08 ms
  64 bytes from 192.168.0.1: icmp_req=40 ttl=64 time=2.92 ms
  64 bytes from 192.168.0.1: icmp_req=41 ttl=64 time=2.75 ms
  64 bytes from 192.168.0.1: icmp_req=42 ttl=64 time=3.10 ms
  64 bytes from 192.168.0.1: icmp_req=43 ttl=64 time=2.93 ms
  64 bytes from 192.168.0.1: icmp_req=102 ttl=64 time=2.74 ms
  64 bytes from 192.168.0.1: icmp_req=103 ttl=64 time=2.75 ms
  64 bytes from 192.168.0.1: icmp_req=104 ttl=64 time=2.96 ms
  64 bytes from 192.168.0.1: icmp_req=105 ttl=64 time=2.85 ms
  64 bytes from 192.168.0.1: icmp_req=106 ttl=64 time=2.95 ms
  64 bytes from 192.168.0.1: icmp_req=107 ttl=64 time=2.97 ms
  64 bytes from 192.168.0.1: icmp_req=108 ttl=64 time=2.98 ms
  64 bytes from 192.168.0.1: icmp_req=109 ttl=64 time=2.79 ms
  64 bytes from 192.168.0.1: icmp_req=110 ttl=64 time=2.77 ms
  64 bytes from 192.168.0.1: icmp_req=111 ttl=64 time=2.89 ms
  64 bytes from 192.168.0.1: icmp_req=112 ttl=64 time=3.02 ms
  64 bytes from 192.168.0.1: icmp_req=113 ttl=64 time=2.95 ms
  64 bytes from 192.168.0.1: icmp_req=114 ttl=64 time=3.05 ms
  64 bytes from 192.168.0.1: icmp_req=115 ttl=64 time=2.91 ms
  64 bytes from 192.168.0.1: icmp_req=116 ttl=64 time=2.77 ms
  64 bytes from 192.168.0.1: icmp_req=117 ttl=64 time=2.77 ms
  64 bytes from 192.168.0.1: icmp_req=118 ttl=64 time=3.05 ms
  64 bytes from 192.168.0.1: icmp_req=119 ttl=64 time=2.95 ms
  64 bytes from 192.168.0.1: icmp_req=120 ttl=64 time=1.07 ms
  64 bytes from 192.168.0.1: icmp_req=121 ttl=64 time=2.76 ms
  64 bytes from 192.168.0.1: icmp_req=122 ttl=64 time=2.92 ms
  64 bytes from 192.168.0.1: icmp_req=123 ttl=64 time=3.01 ms
  64 bytes from 192.168.0.1: icmp_req=124 ttl=64 time=2.88 ms
  64 bytes from 192.168.0.1: icmp_req=125 ttl=64 time=2.92 ms
  64 bytes from 192.168.0.1: icmp_req=126 ttl=64 time=3.13 ms
  64 bytes from 192.168.0.1: icmp_req=127 ttl=64 time=2.75 ms
  64 bytes from 192.168.0.1: icmp_req=128 ttl=64 time=2.85 ms
  64 bytes from 192.168.0.1: icmp_req=129 ttl=64 time=2.97 ms
  64 bytes from 192.168.0.1: icmp_req=190 ttl=64 time=2.96 ms
  64 bytes from 192.168.0.1: icmp_req=191 ttl=64 time=2.87 ms
  64 bytes from 192.168.0.1: icmp_req=192 ttl=64 time=2.83 ms
  64 bytes from 192.168.0.1: icmp_req=193 ttl=64 time=2.95 ms
  64 bytes from 192.168.0.1: icmp_req=194 ttl=64 time=2.93 ms
  64 bytes from 192.168.0.1: icmp_req=195 ttl=64 time=2.86 ms
  64 bytes from 192.168.0.1: icmp_req=196 ttl=64 time=2.86 ms
  64 bytes from 192.168.0.1: icmp_req=197 ttl=64 time=2.82 ms
  64 bytes from 192.168.0.1: icmp_req=198 ttl=64 time=2.70 ms
  64 bytes from 192.168.0.1: icmp_req=199 ttl=64 time=2.92 ms
  64 bytes from 192.168.0.1: icmp_req=200 ttl=64 time=2.85 ms
  64 bytes from 192.168.0.1: icmp_req=201 ttl=64 time=2.76 ms
  64 bytes from 192.168.0.1: icmp_req=202 ttl=64 time=2.85 ms
  64 bytes from 192.168.0.1: icmp_req=203 ttl=64 time=2.92 ms
  64 bytes from 192.168.0.1: icmp_req=204 ttl=64 time=2.82 ms
  64 bytes from 192.168.0.1: icmp_req=205 ttl=64 time=2.92 ms
  64 bytes from 192.168.0.1: icmp_req=206 ttl=64 time=2.83 ms
  64 bytes from 192.168.0.1: icmp_req=207 ttl=64 time=3.05 ms
  64 bytes from 192.168.0.1: icmp_req=208 ttl=64 time=2.87 ms
  64 bytes from 192.168.0.1: icmp_req=209 ttl=64 time=2.79 ms
  64 bytes from 192.168.0.1: icmp_req=210 ttl=64 time=3.11 ms
  64 bytes from 192.168.0.1: icmp_req=211 ttl=64 time=2.73 ms
  64 bytes from 192.168.0.1: icmp_req=212 ttl=64 time=2.76 ms
  64 bytes from 192.168.0.1: icmp_req=213 ttl=64 time=2.64 ms
  64 bytes from 192.168.0.1: icmp_req=214 ttl=64 time=2.78 ms
  64 bytes from 192.168.0.1: icmp_req=215 ttl=64 time=2.83 ms
  64 bytes from 192.168.0.1: icmp_req=216 ttl=64 time=4.17 ms
  64 bytes from 192.168.0.1: icmp_req=217 ttl=64 time=2.64 ms
  64 bytes from 192.168.0.1: icmp_req=218 ttl=64 time=2.86 ms
  64 bytes from 192.168.0.1: icmp_req=219 ttl=64 time=2.84 ms
  64 bytes from 192.168.0.1: icmp_req=220 ttl=64 time=2.89 ms
  64 bytes from 192.168.0.1: icmp_req=221 ttl=64 time=2.92 ms
  64 bytes from 192.168.0.1: icmp_req=222 ttl=64 time=2.86 ms
  64 bytes from 192.168.0.1: icmp_req=223 ttl=64 time=2.77 ms
  64 bytes from 192.168.0.1: icmp_req=224 ttl=64 time=2.90 ms
  64 bytes from 192.168.0.1: icmp_req=225 ttl=64 time=2.90 ms
  64 bytes from 192.168.0.1: icmp_req=226 ttl=64 time=2.68 ms
  64 bytes from 192.168.0.1: icmp_req=227 ttl=64 time=2.94 ms

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-23-generic 3.2.0-23.36
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu2
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mdz        2230 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf2620000 irq 52'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:14f1506e,17aa21da,00100000 HDA:80862805,80860101,00100000'
     Controls      : 26
     Simple ctrls  : 8
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
     Mixer name	: 'ThinkPad EC (unknown)'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [off]
  Date: Tue Apr 17 21:06:56 2012
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  MachineType: LENOVO 4286CTO
  ProcEnviron:
   TERM=xterm
   LC_COLLATE=C
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/zsh
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=b4f82fbf-ca0b-4df1-86f6-2c4a94b99732 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-23-generic N/A
   linux-backports-modules-3.2.0-23-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: Upgraded to precise on 2012-03-14 (34 days ago)
  dmi.bios.date: 05/31/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET47WW (1.17 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4286CTO
  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:bvr8DET47WW(1.17):bd05/31/2011:svnLENOVO:pn4286CTO:pvrThinkPadX220:rvnLENOVO:rn4286CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4286CTO
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO

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