kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

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

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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

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