I have been running for a few days with MTU=automatic (1500) on Ubuntu 16.04 with kernel 4.4.0-38-generic with no overrun errors. I didn't try with any kernels between 4.4.0-21 and 4.4.0-38, so I don't know at which update it would have begun to work, but it appears to be fixed.
-- 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/1458208 Title: AR8161 ethernet stopped working after upgrade from 3.19.0-16 to 3.19.0-18 Status in linux package in Ubuntu: Triaged Bug description: Partial lshw output: *-network description: Ethernet interface product: AR8161 Gigabit Ethernet vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:04:00.0 logical name: eth0 version: 08 serial: 70:54:d2:97:05:11 size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=alx duplex=full latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s resources: irq:30 memory:f7100000-f713ffff ioport:d000(size=128) Partial ifconfig output: eth0 Link encap:Ethernet HWaddr 70:54:d2:97:05:11 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1276 errors:609 dropped:0 overruns:609 frame:0 TX packets:1215 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:230131 (230.1 KB) TX bytes:142978 (142.9 KB) Interrupt:17 The ethernet adapter stopped working on upgrade from linux 3.19.0-16-generic to 3.19.0-18-generic. Upon inital system start, I can successfully ping a remote server, but once I try any TCP connection, even ping fails. If I fallback to 3.19.0-16, everything is working OK. WORKAROUND: In Network manager, set the ethernet connection's MTU value from automatic to 8192. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-18-generic 3.19.0-18.18 ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6 Uname: Linux 3.19.0-18-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: mark 2611 F.... pulseaudio /dev/snd/controlC1: mark 2611 F.... pulseaudio /dev/snd/controlC0: mark 2611 F.... pulseaudio CurrentDesktop: Unity Date: Sat May 23 10:21:44 2015 HibernationDevice: RESUME=UUID=b4733b71-2c28-4a85-8450-6f330135cfe4 InstallationDate: Installed on 2013-04-24 (758 days ago) InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213) MachineType: Hewlett-Packard h8-1360t ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic root=UUID=578349d7-ca6f-4750-b977-7674ad95c763 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-18-generic N/A linux-backports-modules-3.19.0-18-generic N/A linux-firmware 1.143.1 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-05-20 (3 days ago) 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: 2MD3140FD9 dmi.chassis.type: 3 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnAMI:bvr7.15:bd07/02/2012:svnHewlett-Packard:pnh8-1360t:pvr1.00:rvnPEGATRONCORPORATION:rn2AD5:rvr1.03:cvnHewlett-Packard:ct3:cvr: dmi.product.name: h8-1360t dmi.product.version: 1.00 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1458208/+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