I'd like to perform a bisect to figure out what commit caused this regression. We need to identify the earliest kernel where the issue started happening as well as the latest kernel that did not have this issue.
Can you test the following kernels and post back? We are looking for the first kernel version that exhibits this bug: v3.14 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14-trusty v3.16 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16-utopic/ v3.19 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19-vivid/ You don't have to test every kernel, just up until the kernel that first has this bug. Thanks in advance! ** Tags removed: needs-bisect ** Tags added: performing-bisect -- 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/1453391 Title: Very slow Qualcomm Atheros AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) Status in linux package in Ubuntu: Confirmed Bug description: After upgrading form Ubuntu 14.04 to Ubuntu 15.04, my gigabit ethernet controller is performing very very poorly. I get < 10mb throughput. ------ lspic: 02:00.0 controller: Qualcomm Atheros AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) lshw: *-pci:4 description: PCI bridge product: 82801JI (ICH10 Family) PCI Express Root Port 6 vendor: Intel Corporation physical id: 1c.5 bus info: pci@0000:00:1c.5 version: 00 width: 32 bits clock: 33MHz capabilities: pci normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:28 ioport:c000(size=4096) memory:fe800000-fe8fffff ioport:f0800000(size=2097152) *-network description: Ethernet interface product: AR8121/AR8113/AR8114 Gigabit or Fast Ethernet vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:02:00.0 logical name: eth0 version: b0 serial: XX:XX:XX:XX:XX:XX size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=ATL1E driverversion=1.0.0.7-NAPI duplex=full firmware=L1e ip=XX.XX.XX.XX latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s resources: irq:17 memory:fe8c0000-fe8fffff ioport:cc00(size=128) --- ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: test 23180 F.... pulseaudio /dev/snd/controlC1: test 23180 F.... pulseaudio DistroRelease: Ubuntu 15.04 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=87da39cd-1a60-4c53-927d-87ae037d7a6b InstallationDate: Installed on 2015-04-29 (10 days ago) InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Release amd64 (20150422.1) JournalErrors: Error: command ['journalctl', '-b', '--priority', 'warning'] failed with exit code 1: No journal files were found. MachineType: System manufacturer P5QL-E NonfreeKernelModules: fglrx Package: linux (not installed) ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=6107da8b-9d18-4922-a432-27a560213d1c ro quiet splash nomdmonddf nomdmonisw 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: Tags: vivid UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' Uname: Linux 3.19.0-16-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: WifiSyslog: _MarkForUpload: True dmi.bios.date: 09/11/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1104 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P5QL-E dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 2.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1104:bd09/11/2009:svnSystemmanufacturer:pnP5QL-E:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5QL-E:rvrRev2.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: P5QL-E dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1453391/+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
