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[Karl Hill <karl.hill@xxxxxxxxxx>]

I'm having the same issue, but native to Ubuntu 14.04 and 16.04 (kernel
4.2.0) on Dell Precision 7510 with Broadcom 5880.  Card reads
successfully from SCRx31 USB reader.  Card also works on kernel 3.13.0
(different Dell computer) with same Broadcom 5880 reader.

May  1 19:06:41 m-Precision pcscd: eventhandler.c:313:EHStatusHandlerThread() Error communicating to: Broadcom Corp 5880 [Contacted SmartCard] (0123456789ABCD) 00 00
May  1 19:06:46 m-Precision kernel: [15276.197331] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 1 ep 4 with no TDs queued?
May  1 19:06:46 m-Precision kernel: [15276.426405] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 1 ep 4 with no TDs queued?
May  1 19:06:46 m-Precision kernel: [15276.442649] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 1 ep 4 with no TDs queued?
May  1 19:06:46 m-Precision kernel: [15276.465888] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 1 ep 4 with no TDs queued?
May  1 19:06:46 m-Precision pcscd: commands.c:1456:CCID_Receive() Can't read all data (54 out of 92 expected)
May  1 19:06:46 m-Precision pcscd: openct/proto-t1.c:214:t1_transceive() fatal: transmit/receive failed
May  1 19:06:46 m-Precision pcscd: ifdwrapper.c:527:IFDTransmit() Card not transacted: 612
May  1 19:06:46 m-Precision pcscd: winscard.c:1612:SCardTransmit() Card not transacted: 0x80100016
May  1 19:06:46 m-Precision pcscd: openct/proto-t1.c:170:t1_transceive() T=1 state machine is DEAD. Reset the card first.
May  1 19:06:46 m-Precision pcscd: ifdwrapper.c:527:IFDTransmit() Card not transacted: 612
May  1 19:06:46 m-Precision pcscd: winscard.c:1612:SCardTransmit() Card not transacted: 0x80100016
May  1 19:06:46 m-Precision pcscd: openct/proto-t1.c:170:t1_transceive() T=1 state machine is DEAD. Reset the card first.
May  1 19:06:46 m-Precision pcscd: ifdwrapper.c:527:IFDTransmit() Card not transacted: 612
May  1 19:06:46 m-Precision pcscd: winscard.c:1612:SCardTransmit() Card not transacted: 0x80100016
May  1 19:06:46 m-Precision pcscd: openct/proto-t1.c:170:t1_transceive() T=1 state machine is DEAD. Reset the card first.
May  1 19:06:46 m-Precision pcscd: ifdwrapper.c:527:IFDTransmit() Card not transacted: 612
May  1 19:06:46 m-Precision pcscd: winscard.c:1612:SCardTransmit() Card not transacted: 0x80100016
May  1 19:06:46 m-Precision pcscd: openct/proto-t1.c:170:t1_transceive() T=1 state machine is DEAD. Reset the card first.
May  1 19:06:46 m-Precision pcscd: ifdwrapper.c:527:IFDTransmit() Card not transacted: 612
May  1 19:06:46 m-Precision pcscd: winscard.c:1612:SCardTransmit() Card not transacted: 0x80100016
May  1 19:06:47 m-Precision pcscd: ccid_usb.c:790:ReadUSB() read failed (1/2): -8 Resource temporarily unavailable
May  1 19:06:47 m-Precision pcscd: ifdwrapper.c:348:IFDStatusICC() Card not transacted: 612
May  1 19:06:47 m-Precision pcscd: eventhandler.c:313:EHStatusHandlerThread() Error communicating to: Broadcom Corp 5880 [Contacted SmartCard] (0123456789ABCD) 00 00
May  1 19:06:52 m-Precision kernel: [15281.960976] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 1 ep 4 with no TDs queued?


The above cycles on syslog roughly every second.

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https://bugs.launchpad.net/bugs/1541997

Title:
  dmesg flooded with xhci_hcd warnings "WARN Event TRB for slot 1 ep 8
  with no TDs queued?"

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I am running vmware, hosting a Windows 10 guest, relaying USB smartcard reader  and see a flood of following warnings in dmesg:
  "xhci_hcd 0000:00:14.0: WARN Event TRB for slot 1 ep 8 with no TDs queued?"

  I only presume they are related to vmware/usb smartcard reader, I
  can't be sure.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-27-generic 4.2.0-27.32
  ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
  Uname: Linux 4.2.0-27-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC1D0p:   cromo      2748 F...m pulseaudio
   /dev/snd/controlC1:  cromo      2748 F.... pulseaudio
   /dev/snd/controlC0:  cromo      2748 F.... pulseaudio
   /dev/snd/timer:      cromo      2748 f.... pulseaudio
  CurrentDesktop: GNOME
  Date: Thu Feb  4 14:19:30 2016
  HibernationDevice: RESUME=UUID=3cd6beac-9b2b-4af8-9004-fdec2b01f2df
  InstallationDate: Installed on 2013-04-24 (1016 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
  MachineType: Dell Inc. Latitude E6230
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-27-generic root=UUID=50ed3eed-05f6-4dce-b5d6-86a6519d89c1 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-27-generic N/A
   linux-backports-modules-4.2.0-27-generic  N/A
   linux-firmware                            1.149.3
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-10-28 (98 days ago)
  dmi.bios.date: 05/20/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A10
  dmi.board.name: 0GWYCT
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA10:bd05/20/2013:svnDellInc.:pnLatitudeE6230:pvr01:rvnDellInc.:rn0GWYCT:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6230
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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