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[Moez Bouhlel <1058030@xxxxxxxxxxxxxxxxxx>]

when enabling runtime PM of the usb3 controller, I start getting the same warning message[0] and the usb3 port become unusable (sometime i get an other error message too[2])
then when disabling the runtime PM of the controller and plugout/plugin the usb device, I don't get the warning message anymore
This happens on both my ubuntu & my archlinux (kernel-3.14.4) for the same reason
NOTE:
I'm also getting  some other errors from time to time [2] [3]
My EFI/BIOS firmware is up-to-date  but seems still buggy and I'm having some acpi compatibility issues, even I'm having bug on usb_wan module only on ubuntu caused mostly by the firmware [4]

[0] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 14 with no TDs queued?
[1] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88023021bc00
[2] usb 1-3: device not accepting address 4, error -71
[3] option1 ttyUSB0: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[4] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1308537

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https://bugs.launchpad.net/bugs/1058030

Title:
  Log full of xhci_hcd WARN

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Under Quantal beta, my /var/log/syslog is flooded with warning messages. sylog is full of warning like this :
  xhci_hcd 0000:00:14.0: WARN Event TRB for slot 1 ep 6 with no TDs queued?

  (number after ep changes, but the rest is always the same). There is
  something like 10 such messages every second.

  ---
  ApportVersion: 2.5.2-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  franck     2961 F.... pulseaudio
  CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
  CheckboxSubmission: cba860c6453f7c09f91c40eab660deed
  CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
  DistroRelease: Ubuntu 12.10
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=c30f3bae-0dba-40ff-b4d4-9dd5bbccb2aa
  InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64 (20120424.1)
  MachineType: LENOVO 2353CTO
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-15-generic root=/dev/mapper/system-root ro quiet splash elevator=noop vt.handoff=7
  ProcVersionSignature: Ubuntu 3.5.0-15.23-generic 3.5.4
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-15-generic N/A
   linux-backports-modules-3.5.0-15-generic  N/A
   linux-firmware                            1.94
  Tags:  quantal running-unity
  Uname: Linux 3.5.0-15-generic x86_64
  UpgradeStatus: Upgraded to quantal on 2012-09-14 (13 days ago)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo wireshark
  dmi.bios.date: 07/02/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G7ET31WW (1.13 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2353CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG7ET31WW(1.13):bd07/02/2012:svnLENOVO:pn2353CTO:pvrThinkPadT430s:rvnLENOVO:rn2353CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2353CTO
  dmi.product.version: ThinkPad T430s
  dmi.sys.vendor: LENOVO

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