← Back to team overview

kernel-packages team mailing list archive

[Bug 1126626] Re: Performance of rt2800usb module in 3.5.0 abysmal (used by RT3072 chipset)


Still hapens with Linux desktop 3.5.0-37-generic #58~precise1-Ubuntu SMP
Wed Jul 10 17:48:11 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.

  Performance of rt2800usb module in 3.5.0 abysmal (used by RT3072

Status in “linux” package in Ubuntu:

Bug description:
  After switching from linux-image-3.2.0-37 to linux-image-3.5.0-23, I
  noted the performance of my wireless network became awful (~1/10th of
  my regular ~3 Mbps). Several reboots and crosschecks with other
  devices confirmed that the kernel is to blame.

  My wireless device: 
  Bus 002 Device 003: ID 148f:3072 Ralink Technology, Corp. RT3072 Wireless Adapter

  The driver stack used under both kernels:
  rt2800usb              22773  0 
  rt2800lib              58967  1 rt2800usb
  crc_ccitt              12707  1 rt2800lib
  rt2x00usb              20808  1 rt2800usb
  rt2x00lib              55326  3 rt2800usb,rt2800lib,rt2x00usb
  mac80211              506862  3 rt2800lib,rt2x00usb,rt2x00lib
  cfg80211              205774  2 rt2x00lib,mac80211

  Of course I googled and came across topics such as
  are-crippled-on-12-04, where it is adviced to switch to the (older?)
  rt5370sta. I tried that and although the driver installs, loads and
  even connects to my accesspoint just fine, it subsequently immediately
  freezes the 3.5 kernel.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-23-generic 3.5.0-23.35~precise1
  ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35
  Uname: Linux 3.2.0-37-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
   /dev/snd/controlC0:  ivo        2644 F.... pulseaudio
   country NL:
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5170 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
   	(5250 - 5330 @ 40), (N/A, 20), NO-OUTDOOR, DFS
   	(5490 - 5710 @ 40), (N/A, 27), DFS
   Card hw:0 'Intel'/'HDA Intel at 0xfdff8000 irq 44'
     Mixer name	: 'Realtek ALC888'
     Components	: 'HDA:10ec0888,12970000,00100001'
     Controls      : 43
     Simple ctrls  : 20
  Date: Fri Feb 15 21:51:50 2013
  HibernationDevice: RESUME=UUID=e807172d-7e53-45ef-9a06-40c7ea6eccf2
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  MachineType: Shuttle Inc SP35
  MarkForUpload: True
   PATH=(custom, no user)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=UUID=8148180a-7b5f-40f2-b582-36dfca309143 ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
   linux-restricted-modules-3.2.0-37-generic N/A
   linux-backports-modules-3.2.0-37-generic  N/A
   linux-firmware                            1.79.1
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to precise on 2012-04-28 (293 days ago)
  WifiSyslog: Feb 15 19:49:42 twen kernel: [ 3790.494037] cfg80211: Found new beacon on frequency: 2472 MHz (Ch 13) on phy0
  dmi.bios.date: 07/03/2009
  dmi.bios.vendor: Phoenix Technologies, LTD
  dmi.bios.version: 6.00 PG
  dmi.board.name: FP35
  dmi.board.vendor: Shuttle Inc
  dmi.board.version: V20
  dmi.chassis.type: 3
  dmi.chassis.vendor: Shuttle Inc
  dmi.chassis.version: G5
  dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd07/03/2009:svnShuttleInc:pnSP35:pvrV20:rvnShuttleInc:rnFP35:rvrV20:cvnShuttleInc:ct3:cvrG5:
  dmi.product.name: SP35
  dmi.product.version: V20
  dmi.sys.vendor: Shuttle Inc

To manage notifications about this bug go to: