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[Markus Heinz <markus.heinz@xxxxxxxxxxxxxxx>]

I have tested with the following kernel:

Linux computer4 4.4.0-040400rc7-generic #201512272230 SMP Mon Dec 28
03:32:16 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

The behaviour is the same as with Linux computer4 3.13.0-74-generic
#118-Ubuntu SMP Thu Dec 17 22:52:10 UTC 2015 x86_64 x86_64 x86_64
GNU/Linux

This means the problem persists.

Relevant lines from the syslog with the rc kernel:

Jan  4 19:14:57 computer4 kernel: [  219.001128] usb 3-1: reset high-speed USB device number 2 using xhci_hcd
Jan  4 19:17:01 computer4 CRON[2640]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Jan  4 19:27:38 computer4 dbus[868]: [system] Activating service name='org.freedesktop.hostname1' (using servicehelper)
Jan  4 19:27:38 computer4 dbus[868]: [system] Successfully activated service 'org.freedesktop.hostname1'
Jan  4 19:29:10 computer4 kernel: [ 1071.599601] usb 3-1: reset high-speed USB device number 2 using xhci_hcd

More precise description of the problem (for both the distribution
kernel and 4.4.0-rc7):

If I start the CD player application with no disc inserted, it does not
hang. But when I then insert a disc, it hangs for approximately 30
seconds and the disc is not detected at all.

If I start the CD player application with the same disc inserted, it
hangs for approximately 30 seconds and then the disc is detected.

Once the disc has been detected it can be played normally by the CD
player application.


** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1529077

Title:
  USB device resets since kernel version 3.13.0-73-generic #116-Ubuntu

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I am using Ubuntu 14.04 with Gnome desktop.

  When running "goobox" (a cd-player application) the application hangs
  for about 30 seconds before being initialized. During this one core of
  the cpu is running at 100% utilization. The following lines appear
  then in the syslog:

  Dec 24 13:14:27 computer4 kernel: [ 1386.238349] usb 3-1: reset high-speed USB device number 2 using xhci_hcd
  Dec 24 13:14:27 computer4 kernel: [ 1386.293951] xhci_hcd 0000:03:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff880036272600
  Dec 24 13:14:27 computer4 kernel: [ 1386.293955] xhci_hcd 0000:03:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff880036272640

  The CD drive is a external USB one connected to a USB 3.0 port:

  Bus 003 Device 002: ID 0e8d:1806 MediaTek Inc. Samsung SE-208AB Slim
  Portable DVD Writer

  This behaviour appeared with the kernel version 3.13.0-73-generic
  #116-Ubuntu. Running "goobox" on the same system with kernel 3.13.0-71
  does not exhibit this behaviour. Using the newest available kernel
  3.13.0-74 the problem persists.

  Kernel, goobox and the other software are installed from official
  Ubuntu packages.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-73-generic 3.13.0-73.116
  ProcVersionSignature: Ubuntu 3.13.0-73.116-generic 3.13.11-ckt30
  Uname: Linux 3.13.0-73-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  markus     2224 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Thu Dec 24 13:08:36 2015
  HibernationDevice: RESUME=UUID=e711920c-5aab-410e-b993-bb341ddfa987
  InstallationDate: Installed on 2014-12-13 (376 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: MICRO-STAR INTERNATIONAL CO., LTD MS-B06211
  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-3.13.0-73-generic root=UUID=a501b8b5-7f50-4131-ad2e-cc401009acbf ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-73-generic N/A
   linux-backports-modules-3.13.0-73-generic  N/A
   linux-firmware                             1.127.19
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: yes
   	Hard blocked: no
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/25/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: EB062IMS V1.4
  dmi.board.name: MS-B0621
  dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
  dmi.board.version: 100
  dmi.chassis.type: 13
  dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO., LTD
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrEB062IMSV1.4:bd08/25/2014:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-B06211:pvr:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-B0621:rvr100:cvnMICRO-STARINTERNATIONALCO.,LTD:ct13:cvr:
  dmi.product.name: MS-B06211
  dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO., LTD

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