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[Bug 771857] Re: Realtek 8168B (r8169) interface not working following suspend


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  Realtek 8168B (r8169) interface not working following suspend

Status in The Linux Kernel:
Status in “linux” package in Ubuntu:
Status in “linux” package in Fedora:

Bug description:
  After suspending and resuming, the network adapter appears to be
  active (Link UP) however it is not able to properly communicate data
  and appears in network-manager as disconnected due to the inability to
  negotiate DHCP successfully.

  The workaround, in my case, is to execute this "fixnet" script
  following the resume to unload an reload the r8169 module.  In 11.04
  the network manager automatically reconnects at this point.

  imac@repo:/usr/local/bin$ cat fixnet

  rmmod r8169
  modprobe r8169

  imac@repo:/usr/local/bin$ lspci -v | grep -i realtek
  0a:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)

  Here is a typical dmesg, showing the link up after resume (@5958)
  followed by my script execution (starting @ 6105).

  [ 5956.140651] r8169 0000:0a:00.0: eth0: link down
  [ 5958.247724] r8169 0000:0a:00.0: eth0: link up
  [ 6105.570173] r8169 0000:0a:00.0: PCI INT A disabled
  [ 6105.604106] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
  [ 6105.604141] r8169 0000:0a:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
  [ 6105.604191] r8169 0000:0a:00.0: setting latency timer to 64
  [ 6105.604248] r8169 0000:0a:00.0: irq 45 for MSI/MSI-X
  [ 6105.610321] r8169 0000:0a:00.0: eth0: RTL8168c/8111c at 0xffffc90002098000, 00:1e:ec:f2:0f:f3, XID 1c4000c0 IRQ 45
  [ 6105.624882] r8169 0000:0a:00.0: eth0: link down
  [ 6105.624896] r8169 0000:0a:00.0: eth0: link down
  [ 6105.636108] ADDRCONF(NETDEV_UP): eth0: link is not ready
  [ 6108.331777] r8169 0000:0a:00.0: eth0: link up
  [ 6108.332388] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
  [ 6118.770054] eth0: no IPv6 routers present

  Upstream we see this here:

  This problem also affects Maverick

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: linux-image-2.6.38-8-generic 2.6.38-8.42
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic
  Uname: Linux 2.6.38-8-generic x86_64
  NonfreeKernelModules: fglrx
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
  Architecture: amd64
   **** List of CAPTURE Hardware Devices ****
   card 0: SB [HDA ATI SB], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
   /dev/snd/controlC0:  imac       2744 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
   Card hw:0 'SB'/'HDA ATI SB at 0xd2400000 irq 16'
     Mixer name	: 'IDT 92HD71B7X'
     Components	: 'HDA:111d76b2,103c30fd,00100302 HDA:11c11040,103c137e,00100200'
     Controls      : 22
     Simple ctrls  : 14
   Card hw:1 'HDMI'/'HDA ATI HDMI at 0xd2310000 irq 46'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100000'
     Controls      : 4
     Simple ctrls  : 1
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Wed Apr 27 10:16:01 2011
  HibernationDevice: RESUME=UUID=5828f841-5250-4229-bfc5-af24c6f41811
  MachineType: Hewlett-Packard HP Pavilion dv7 Notebook PC
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=52543d1c-6080-4cdf-80e0-30b9af3748f7 ro crashkernel=384M-2G:64M,2G-:128M splash vt.handoff=7
   linux-restricted-modules-2.6.38-8-generic N/A
   linux-backports-modules-2.6.38-8-generic  N/A
   linux-firmware                            1.52
  SourcePackage: linux
  UpgradeStatus: Upgraded to natty on 2011-04-06 (21 days ago)

  dmi.bios.date: 08/17/2009
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.49
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 30FD
  dmi.board.vendor: Compal
  dmi.board.version: 01.99
  dmi.chassis.type: 10
  dmi.chassis.vendor: Compal
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.49:bd08/17/2009:svnHewlett-Packard:pnHPPaviliondv7NotebookPC:pvr1:rvnCompal:rn30FD:rvr01.99:cvnCompal:ct10:cvrN/A:
  dmi.product.name: HP Pavilion dv7 Notebook PC
  dmi.product.version: 1
  dmi.sys.vendor: Hewlett-Packard

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