Public bug reported:

I have this dmesg output:

usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[38762.000050] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[38890.000050] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[39228.048051] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[39502.032048] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[39976.080057] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[41678.992055] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[41750.992049] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[42691.024045] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[43299.984056] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[43410.000049] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[43738.000047] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[44854.032054] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[45105.040054] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[45440.016055] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[45511.984058] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[46398.032055] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[46561.984053] usb 2-5: reset full-speed USB device number 4 using ohci_hcd
[47198.886965] ACPI Warning: Incorrect checksum in table [OEMB] - 0x78, should 
be 0x77 (20110623/tbutils-314)
[47198.887221] ACPI Warning: Incorrect checksum in table [OEMB] - 0x78, should 
be 0x77 (20110623/tbutils-314)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-34-generic 3.2.0-34.53
ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33
Uname: Linux 3.2.0-34-generic x86_64
AlsaDevices:
 total 0
 crw-rw---T 1 root audio 116,  1 dic  6 22:52 seq
 crw-rw---T 1 root audio 116, 33 dic  6 22:52 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.0.1-0ubuntu15
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Date: Fri Dec  7 11:58:41 2012
HibernationDevice: RESUME=UUID=13d26c34-42aa-46d0-b021-385a62d48313
InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64 
(20120424.1)
MachineType: Sun Microsystems Sun Fire X4200 M2
MarkForUpload: True
PciMultimedia:
 
ProcEnviron:
 LANGUAGE=es_CL:es
 TERM=xterm
 PATH=(custom, no user)
 LANG=es_CL.UTF-8
 SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-34-generic 
root=UUID=1bae47dc-bb60-4a6c-b3af-e6d30ec487fe ro
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-34-generic N/A
 linux-backports-modules-3.2.0-34-generic  N/A
 linux-firmware                            1.79.1
RfKill: Error: [Errno 2] No such file or directory
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/02/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080012
dmi.board.name: Sun Fire X4200 M2 server with  Express
dmi.board.vendor: Sun Microsystems
dmi.chassis.type: 23
dmi.chassis.vendor: Sun Microsystems
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr080012:bd02/02/2007:svnSunMicrosystems:pnSunFireX4200M2:pvr:rvnSunMicrosystems:rnSunFireX4200M2serverwithExpress:rvr:cvnSunMicrosystems:ct23:cvr:
dmi.product.name: Sun Fire X4200 M2
dmi.sys.vendor: Sun Microsystems

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/1087734

Title:
  USB errors and warning

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