Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.11 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc7 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1683458 Title: kern.log flooded with xhci-hcd warning message Status in linux package in Ubuntu: Incomplete Bug description: Appears to be identical to #1541997 but submitting here using ubuntu- bug for completeness This message repeats forever, rapidly making the log file huge. Apr 17 11:42:31 gvlt kernel: [255517.557491] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 2 with no TDs queued? Apr 17 11:42:31 gvlt kernel: [255517.557629] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 2 with no TDs queued? Apr 17 11:42:31 gvlt kernel: [255517.557761] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 2 with no TDs queued? Apr 17 11:42:31 gvlt kernel: [255517.557892] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 2 with no TDs queued? ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-72-generic 4.4.0-72.93 ProcVersionSignature: Ubuntu 4.4.0-72.93-generic 4.4.49 Uname: Linux 4.4.0-72-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: george 3857 F.... pulseaudio Date: Mon Apr 17 11:48:29 2017 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-trusty-amd64-osp1-20150720-0 InstallationDate: Installed on 2016-06-17 (304 days ago) InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20150720-04:06 MachineType: Dell Inc. Precision 5510 ProcEnviron: LANGUAGE=en_US TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-72-generic.efi.signed root=UUID=e22b40a4-a1aa-49d7-963c-121a4c1fb4b3 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-72-generic N/A linux-backports-modules-4.4.0-72-generic N/A linux-firmware 1.157.8 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/31/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.14 dmi.board.name: 08R8KJ dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.2.14:bd08/31/2016:svnDellInc.:pnPrecision5510:pvr:rvnDellInc.:rn08R8KJ:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Precision 5510 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1683458/+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
