I'm having a similar issue running 12.04 with the Trusty hardware enablement stack; kernel v3.13. I have the MCP51 controller and get random protocol flaps even with the physical link still up. This causes problems as I have an NFS auto mounted home directory. My only workaround has been to spawn a root shell on tty1 and reboot. In comment #6, when you say reset, are you referring to bouncing via ifconfig or reloading forcedeth? The next time this happens to me, I will try both and see what happens unless anyone else can comment on this issue with a workaround.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1200235 Title: forcedeth autoneg for 100M-FD fails Status in “linux” package in Ubuntu: Confirmed Bug description: Wired network on this laptop fails to come up automatically on the work network. After running this ethtool command, the wired network works, until the NIC gets turned off (say, suspend): ethtool -s eth0 speed 100 duplex full autoneg off Running the ethtool command above gives this info in dmesg: [ 62.560356] forcedeth 0000:00:0a.0 eth0: link up [ 62.560527] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-25-generic 3.8.0-25.37 ProcVersionSignature: Ubuntu 3.8.0-25.37-generic 3.8.13 Uname: Linux 3.8.0-25-generic x86_64 NonfreeKernelModules: wl nvidia ApportVersion: 2.9.2-0ubuntu8.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ch 3516 F.... pulseaudio /dev/snd/pcmC0D0p: ch 3516 F...m pulseaudio Date: Thu Jul 11 15:34:06 2013 HibernationDevice: RESUME=UUID=655c9f6b-5295-45b9-b3ed-fbb9fe5921b0 MachineType: Apple Inc. MacBookPro5,3 MarkForUpload: True ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-25-generic.efi.signed root=/dev/mapper/hostname-root ro quiet splash cryptopts=target=lvm,source=/dev/sda6,lvm=hostname-root resume=/dev/sda5 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-25-generic N/A linux-backports-modules-3.8.0-25-generic N/A linux-firmware 1.106 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/15/09 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP53.88Z.00AC.B03.0906151647 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-F22587C8 dmi.board.vendor: Apple Inc. dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22587C8 dmi.modalias: dmi:bvnAppleInc.:bvrMBP53.88Z.00AC.B03.0906151647:bd06/15/09:svnAppleInc.:pnMacBookPro5,3:pvr1.0:rvnAppleInc.:rnMac-F22587C8:rvr:cvnAppleInc.:ct10:cvrMac-F22587C8: dmi.product.name: MacBookPro5,3 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1200235/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp