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[Bug 1533323] Re: Linux kernel holds lost ethernet connections

 

** Description changed:

  If a connection to a router is lost while you have active ethernet
  connections to hosts (on the Internet), networking can't be resumed
  before all connections are closed. Many software packages repeatedly try
  to resume their lost connections, which must lead to a human
  intervention to quit all software before the connection to the router is
  re-established.
  
  Seems as it is the kernel that prevents connections to the router, by
  holding lost connections.
  
  Even if you in disable networking by selecting "Enable Networking" from
  the drop down menu, and re-enable it, you can't get through to the
  router before all user software has quit and closed all connections
  holding the lost host connections.
  
- This bug has existed for a long time, but I have never learnt what the
- error could be.
+ This bug has existed for a long time(=years), but I have never learnt
+ what the error could be.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-43-generic 3.19.0-43.49
  ProcVersionSignature: Ubuntu 3.19.0-43.49-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-43-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.8
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  patrik     1870 F.... pulseaudio
-  /dev/snd/controlC1:  patrik     1870 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  patrik     1870 F.... pulseaudio
+  /dev/snd/controlC1:  patrik     1870 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Jan 12 19:51:10 2016
  HibernationDevice: RESUME=UUID=541b29a6-2b6e-4caa-989c-9eb69dca7d9f
  InstallationDate: Installed on 2015-07-12 (184 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Acer Aspire V3-331
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-43-generic root=/dev/mapper/hostname--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-3.19.0-43-generic N/A
-  linux-backports-modules-3.19.0-43-generic  N/A
-  linux-firmware                             1.143.7
+  linux-restricted-modules-3.19.0-43-generic N/A
+  linux-backports-modules-3.19.0-43-generic  N/A
+  linux-firmware                             1.143.7
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/09/2014
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.05
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Aspire V3-331
  dmi.board.vendor: Acer
  dmi.board.version: V1.05
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.05
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.05:bd06/09/2014:svnAcer:pnAspireV3-331:pvrV1.05:rvnAcer:rnAspireV3-331:rvrV1.05:cvnAcer:ct10:cvrV1.05:
  dmi.product.name: Aspire V3-331
  dmi.product.version: V1.05
  dmi.sys.vendor: Acer

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https://bugs.launchpad.net/bugs/1533323

Title:
  Linux kernel holds lost ethernet connections

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  If a connection to a router is lost while you have active ethernet
  connections to hosts (on the Internet), networking can't be resumed
  before all connections are closed. Many software packages repeatedly
  try to resume their lost connections, which must lead to a human
  intervention to quit all software before the connection to the router
  is re-established.

  Seems as it is the kernel that prevents connections to the router, by
  holding lost connections.

  Even if you in disable networking by selecting "Enable Networking"
  from the drop down menu, and re-enable it, you can't get through to
  the router before all user software has quit and closed all
  connections holding the lost host connections.

  This bug has existed for a long time(=years), but I have never learnt
  what the error could be.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-43-generic 3.19.0-43.49
  ProcVersionSignature: Ubuntu 3.19.0-43.49-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-43-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  patrik     1870 F.... pulseaudio
   /dev/snd/controlC1:  patrik     1870 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Jan 12 19:51:10 2016
  HibernationDevice: RESUME=UUID=541b29a6-2b6e-4caa-989c-9eb69dca7d9f
  InstallationDate: Installed on 2015-07-12 (184 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Acer Aspire V3-331
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-43-generic root=/dev/mapper/hostname--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-43-generic N/A
   linux-backports-modules-3.19.0-43-generic  N/A
   linux-firmware                             1.143.7
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/09/2014
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.05
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Aspire V3-331
  dmi.board.vendor: Acer
  dmi.board.version: V1.05
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.05
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.05:bd06/09/2014:svnAcer:pnAspireV3-331:pvrV1.05:rvnAcer:rnAspireV3-331:rvrV1.05:cvnAcer:ct10:cvrV1.05:
  dmi.product.name: Aspire V3-331
  dmi.product.version: V1.05
  dmi.sys.vendor: Acer

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