As I wrote in the bug description with the distribution kernel "Linux computer4 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux" everything is fine.
I have just checked it again: When I boot with the above kernel version, the CD player application detects the disc independent of it being inserted before the application is started or thereafter. And no USB device reset is show in the syslog in both cases. This is in contrast to the behaviour I have described with the newer kernel versions. Kernel version 3.13.0-72 had not been delivered to my installation. With 3.13.0-73 and the following ones the problem is present. For 3.13.0-72 there is besides other entries the following in the changelog: [ Upstream Kernel Changes ] * usb: make xhci platform driver use 64 bit or 32 bit DMA - LP: #1514971 * usb: Add support for ACPI identification to xhci-platform - LP: #1514971 * xhci: Workaround to get Intel xHCI reset working more reliably Perhaps it has something to do with one of these changes. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1529077/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp