Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.8 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/v4.8-rc6 ** 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/1623820 Title: USB devices routed into VirtualBox pollute dmesg with xhci_hcd ... WARN Event TRB for slot ... with no TDs queued? Status in linux package in Ubuntu: Incomplete Bug description: As soon as I use USB devices in VirtualBox, I start getting messages like [863734.126179] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863734.190363] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863734.280418] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863734.370629] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863734.546726] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863734.846431] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863734.940460] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863735.120483] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863735.179285] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863735.281434] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863735.400142] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863735.566276] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863735.691233] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863735.870846] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863735.991530] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863736.171197] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863736.283734] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863736.286267] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863736.290070] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? [863736.440613] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 20 ep 4 with no TDs queued? in my dmesg. Even if the system seems to work fine in general, this is very annoying and hides real error log entries. I am using Description: Ubuntu 16.04.1 LTS Release: 16.04 with stock kernel 4.4.0-36-generic #55-Ubuntu SMP Thu Aug 11 18:01:55 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux but have seen this problem also with previous kernel versions. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-36-generic 4.4.0-36.55 ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16 Uname: Linux 4.4.0-36-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: twegner 5589 F.... pulseaudio twegner 6165 F.... pulseaudio /dev/snd/controlC1: twegner 5589 F.... pulseaudio twegner 6165 F.... pulseaudio CurrentDesktop: Unity Date: Tue Sep 13 17:23:27 2016 HibernationDevice: RESUME=UUID=630d2748-e400-4158-aac0-5386421b662b InstallationDate: Installed on 2016-05-20 (116 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: LENOVO 20BUS11B0F ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-36-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash RelatedPackageVersions: linux-restricted-modules-4.4.0-36-generic N/A linux-backports-modules-4.4.0-36-generic N/A linux-firmware 1.157.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/08/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JBET51WW (1.16 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BUS11B0F dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: DE-L-7006941 dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET51WW(1.16):bd07/08/2015:svnLENOVO:pn20BUS11B0F:pvrThinkPadT450:rvnLENOVO:rn20BUS11B0F:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BUS11B0F dmi.product.version: ThinkPad T450 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1623820/+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
