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[Stefan Felkel <stefan.felkel@xxxxxxxx>]

Experiencing a problem on xhci module with an Opticon Barcode Scanner
NLV-1001 (ttyUSB device). After a few barcode-scan-triggers, it doesn't
return from opening the device.

Tried:

- 3.13.0-35-generic
- 3.16.0-34-generic
- 3.17.0-031700-generic
- 3.19.1-031901-generic

Without USB3 (when disabled in BIOS) - ehci module is used, then, and no
problems show up.

Could anyone tell me whether my problem with following trace is related to this issue? 
Thank you for your help!

(kernel.log)
Apr 27 10:32:10 myhost123 kernel: [ 3721.041230] INFO: task myapp:2920 blocked for more than 120 seconds.
Apr 27 10:32:10 myhost123 kernel: [ 3721.041235]       Tainted: G           OE  3.19.1-031901-generic #201504091335
Apr 27 10:32:10 myhost123 kernel: [ 3721.041236] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 27 10:32:10 myhost123 kernel: [ 3721.041237] myapp         D e4995b74     0  2920   2477 0x00000004
Apr 27 10:32:10 myhost123 kernel: [ 3721.041240]  e4995be0 00200086 00000000 e4995b74 e85ba000 0899fc06 000002fb 00000001
Apr 27 10:32:10 myhost123 kernel: [ 3721.041244]  00000001 e4995fec c15511bf c1b88f40 e51b0e00 e926cf40 e48cee40 e5730620
Apr 27 10:32:10 myhost123 kernel: [ 3721.041247]  00000000 00000000 e4cfb940 00000001 00000000 e863f070 e5376610 00000c01
Apr 27 10:32:10 myhost123 kernel: [ 3721.041250] Call Trace:
Apr 27 10:32:10 myhost123 kernel: [ 3721.041258]  [<c15511bf>] ? xhci_queue_ctrl_tx+0x1ef/0x260
Apr 27 10:32:10 myhost123 kernel: [ 3721.041261]  [<c1548d5d>] ? xhci_urb_enqueue+0x16d/0x420
Apr 27 10:32:10 myhost123 kernel: [ 3721.041263]  [<c16eac03>] schedule+0x23/0x60
Apr 27 10:32:10 myhost123 kernel: [ 3721.041266]  [<c16ed135>] schedule_timeout+0x165/0x1c0
Apr 27 10:32:10 myhost123 kernel: [ 3721.041270]  [<c1509180>] ? usb_hcd_submit_urb+0x80/0x180
Apr 27 10:32:10 myhost123 kernel: [ 3721.041272]  [<c150a480>] ? usb_submit_urb.part.9+0x1e0/0x520
Apr 27 10:32:10 myhost123 kernel: [ 3721.041275]  [<c11808f4>] ? vmap_pmd_range+0x94/0xe0
Apr 27 10:32:10 myhost123 kernel: [ 3721.041277]  [<c16ebbb5>] wait_for_completion_timeout+0x85/0x140
Apr 27 10:32:10 myhost123 kernel: [ 3721.041280]  [<c1089770>] ? try_to_wake_up+0x210/0x210
Apr 27 10:32:10 myhost123 kernel: [ 3721.041282]  [<c150b541>] usb_start_wait_urb+0x71/0x150
Apr 27 10:32:10 myhost123 kernel: [ 3721.041284]  [<c1194feb>] ? __kmalloc+0xab/0x230
Apr 27 10:32:10 myhost123 kernel: [ 3721.041286]  [<c1509ff9>] ? usb_alloc_urb+0x19/0x40
Apr 27 10:32:10 myhost123 kernel: [ 3721.041288]  [<c150b83b>] usb_control_msg+0xbb/0xe0
Apr 27 10:32:10 myhost123 kernel: [ 3721.041295]  [<f058b6fa>] send_control_msg.isra.4+0x7a/0xa0 [opticon]
Apr 27 10:32:10 myhost123 kernel: [ 3721.041297]  [<f058b830>] opticon_open+0x40/0x84 [opticon]
Apr 27 10:32:10 myhost123 kernel: [ 3721.041300]  [<f05d50d1>] serial_port_activate+0x61/0x90 [usbserial]
Apr 27 10:32:10 myhost123 kernel: [ 3721.041303]  [<c1416791>] tty_port_open+0x71/0xf0
Apr 27 10:32:10 myhost123 kernel: [ 3721.041307]  [<f05d5b7c>] serial_open+0x2c/0x70 [usbserial]
Apr 27 10:32:10 myhost123 kernel: [ 3721.041309]  [<c140f22e>] tty_open+0x3e/0x3f0
Apr 27 10:32:10 myhost123 kernel: [ 3721.041312]  [<c11ae5f7>] chrdev_open+0x97/0x180
Apr 27 10:32:10 myhost123 kernel: [ 3721.041314]  [<c11a84d2>] do_dentry_open+0x1f2/0x2f0
Apr 27 10:32:10 myhost123 kernel: [ 3721.041316]  [<c11ae560>] ? cdev_put+0x20/0x20
Apr 27 10:32:10 myhost123 kernel: [ 3721.041318]  [<c11a8624>] vfs_open+0x54/0x70
Apr 27 10:32:10 myhost123 kernel: [ 3721.041320]  [<c11b6f4b>] do_last+0x38b/0x6b0
Apr 27 10:32:10 myhost123 kernel: [ 3721.041322]  [<c11b35e6>] ? inode_permission+0x16/0x50
Apr 27 10:32:10 myhost123 kernel: [ 3721.041324]  [<c11b4f00>] ? link_path_walk+0x1c0/0x730
Apr 27 10:32:10 myhost123 kernel: [ 3721.041326]  [<c11b74f8>] path_openat+0x288/0x3b0
Apr 27 10:32:10 myhost123 kernel: [ 3721.041329]  [<c11b9045>] do_filp_open+0x35/0x80
Apr 27 10:32:10 myhost123 kernel: [ 3721.041331]  [<c11a98c5>] do_sys_open+0x115/0x200
Apr 27 10:32:10 myhost123 kernel: [ 3721.041333]  [<c11a0000>] ? drain_stock.isra.37+0x70/0x90
Apr 27 10:32:10 myhost123 kernel: [ 3721.041335]  [<c11a99d2>] SyS_open+0x22/0x30
Apr 27 10:32:10 myhost123 kernel: [ 3721.041338]  [<c16ee49f>] sysenter_do_call+0x12/0x12

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https://bugs.launchpad.net/bugs/1371233

Title:
  USB 3.0 connection is unreliable + xHCI xhci_drop_endpoint called with
  disabled ep

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Trusty:
  Confirmed
Status in linux source package in Utopic:
  Confirmed
Status in linux source package in Vivid:
  Confirmed

Bug description:
  based on https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1358871/comments/7 I tested with the HDD enclosure IcyBox IB-351 series with USB 3.0 connection with the same result (connection drops after 300 MB reading, error message "xHCI xhci_drop_endpoint called with disabled ep" occurs sometimes, other devices (e.g. Samsung HD103SI 1 TB HDD connected with 3.0 USB adapter to eSATA of enclosure) read hundreds of GB before failing, but definitely do before reading 1TB). Reading tested with `dd`, `gpart` and `btrfsck`.
  Also confirmed on Lenovo IdeaPad-Z500 after BIOS update to 71CN51WW(V1.21) (changelog didn't indicate any USB issues anyway). Also confirmed with 3.16.3 and 3.16.0-14 on Ubuntu 14.10-beta1 after updates.
  The issue seems to cause failure of ASIX AX179 gigabit ethernet chip as well, but is independent from the usage of the ethernet adapter.
  I'm without any clue and stuck with an unreliable USB and ethernet connection which basically means no I/O out of the machine!!

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-35-generic 3.13.0-35.62
  ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
  Uname: Linux 3.13.0-35-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.4
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D3', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CurrentDesktop: Unity
  Date: Thu Sep 18 19:58:24 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-09-10 (8 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: LENOVO 20221
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.13.0-35-generic.efi.signed root=UUID=5e999111-7efe-4818-b9e8-a950ad6d3296 ro rootflags=subvol=@ quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-35-generic N/A
   linux-backports-modules-3.13.0-35-generic  N/A
   linux-firmware                             1.127.5
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/12/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 71CN51WW(V1.21)
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: INVALID
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900003WIN8 STD MLT
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad Z500 Touch
  dmi.modalias: dmi:bvnLENOVO:bvr71CN51WW(V1.21):bd07/12/2013:svnLENOVO:pn20221:pvrLenovoIdeaPadZ500Touch:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadZ500Touch:
  dmi.product.name: 20221
  dmi.product.version: Lenovo IdeaPad Z500 Touch
  dmi.sys.vendor: LENOVO

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