kernel-packages team mailing list archive

[infopox <eric.poquillon@xxxxxxxxxx>]

Hi,

This bug seems linked to the ARL driver used for the eth0 Ethernet
controller: Qualcomm Atheros AR8161 Gigabit Ethernet (rev 08).

It is identified in BugZilla : https://bugzilla.kernel.org/show_bug.cgi?id=70761   as
"Bug 70761 - AR8161 wir alx driver: Randomly stops to receive packets with small MTU"

A palliative solution is to increase MTU size above 8192.

This can be down temporarily with
ifconfig eth0 mtu 9000

Or permanently in network manager.

This palliative solution is effective in my case with kernel
3.19.0-21-generic and I tested it satisfactorily with 4.1.0-040100rc8.

** Bug watch added: Linux Kernel Bug Tracker #70761
   http://bugzilla.kernel.org/show_bug.cgi?id=70761

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https://bugs.launchpad.net/bugs/1455940

Title:
  kernel 3.19.0-17-generic : network connection lost after a while -
  Follow-up

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  this is a follow -up

  logs from 
  1) uname -a > uname-a.log
  2) cat /proc/version_signature > version.log
  3) dmesg > dmesg.log
  4) sudo lspci -vnvn > lspci-vnvn.log

  are in attachment
  --- 
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  eric       2349 F.... pulseaudio
   /dev/snd/controlC0:  eric       2349 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=8b4bc51b-4c9c-4e1e-823d-7daca442aab6
  InstallationDate: Installed on 2014-06-08 (344 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Hewlett-Packard h8-1340ef
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic.efi.signed root=UUID=3a75e1e0-7666-4142-a826-9eedc88f7f5d ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-16-generic N/A
   linux-backports-modules-3.19.0-16-generic  N/A
   linux-firmware                             1.143
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: yes
   	Hard blocked: no
  Tags:  vivid
  Uname: Linux 3.19.0-16-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True
  dmi.bios.date: 07/02/2012
  dmi.bios.vendor: AMI
  dmi.bios.version: 7.15
  dmi.board.name: 2AD5
  dmi.board.vendor: PEGATRON CORPORATION
  dmi.board.version: 1.03
  dmi.chassis.asset.tag: CZC2316CR9
  dmi.chassis.type: 3
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnAMI:bvr7.15:bd07/02/2012:svnHewlett-Packard:pnh8-1340ef:pvr1.00:rvnPEGATRONCORPORATION:rn2AD5:rvr1.03:cvnHewlett-Packard:ct3:cvr:
  dmi.product.name: h8-1340ef
  dmi.product.version: 1.00
  dmi.sys.vendor: Hewlett-Packard
  --- 
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  eric       2617 F.... pulseaudio
   /dev/snd/controlC0:  eric       2617 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=8b4bc51b-4c9c-4e1e-823d-7daca442aab6
  InstallationDate: Installed on 2014-06-08 (348 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic.efi.signed root=UUID=3a75e1e0-7666-4142-a826-9eedc88f7f5d ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-18-generic N/A
   linux-backports-modules-3.19.0-18-generic  N/A
   linux-firmware                             1.143
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  Tags:  vivid
  Uname: Linux 3.19.0-18-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True
  dmi.bios.date: 10/20/2014
  dmi.bios.vendor: AMI
  dmi.bios.version: 8.21
  dmi.board.name: 2AD5
  dmi.board.vendor: PEGATRON CORPORATION
  dmi.board.version: 1.03
  dmi.chassis.type: 3
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnAMI:bvr8.21:bd10/20/2014:svnHewlett-Packard:pn:pvr1.00:rvnPEGATRONCORPORATION:rn2AD5:rvr1.03:cvnHewlett-Packard:ct3:cvr:
  dmi.product.version: 1.00
  dmi.sys.vendor: Hewlett-Packard

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