I bought a PCI Express card (PEXUSB3S44V from Startech, see https://www.startech.com/nl/en/Cards-Adapters/USB-3.0/Cards/PCI-Express- USB-3-Card-4-Dedicated-Channels-4-Port~PEXUSB3S44V) basically because it is the most expensive card you can get (I was hoping to rule out certain things with that).
As a result I no longer need to disable iommu in the BIOS or pass iommu=soft as kernel boot parameter. However, I still get the following dmesg: POWER DOWN CONNECTED DEVICE (Valve Index): [77859.996165] retire_capture_urb: 99 callbacks suppressed [77859.996475] usb 14-1.3: USB disconnect, device number 3 [77859.996479] usb 14-1.3.1: USB disconnect, device number 4 [77859.997165] usb 14-1.3.3: cannot submit urb (err = -19) [77859.999429] usb 14-1: USB disconnect, device number 2 [77860.002716] usb 14-1.3.2: USB disconnect, device number 5 [77860.005249] usb 14-1.3.3: cannot submit urb 0, error -19: no device [77860.009536] usb 14-1.3.3: USB disconnect, device number 6 [77860.013694] usb 14-1.3.5: USB disconnect, device number 7 [77860.737515] usb 15-1: USB disconnect, device number 2 [77860.737520] usb 15-1.1: USB disconnect, device number 3 POWER UP CONNECTED DEVICE [77865.729313] xhci_hcd 0000:08:00.0: xHCI host not responding to stop endpoint command. [77865.729989] xhci_hcd 0000:08:00.0: xHCI host controller not responding, assume dead [77865.729995] xhci_hcd 0000:08:00.0: HC died; cleaning up This reproduces 100% of the time. Kernel: 5.6.0-rc7-lowlatlocxhci This is 5.6.0-rc7 with a .config from a lowlatency kernel, ran through make oldconfig; then localmodconfig to get rid of unused modules and make menuconfig to turn xhci_hda and xhci_pci into kernel modules. I can assure you however that this bug happens with any kernel and any reasonable .config (I tried 4.15-general and several other kernels and configs too). Recovery is now possible with: sudo rmmod xhci_pci sudo modprobe xhci_pci This allows me to recover without having to reboot, but also to experiment with changes to the drivers. -- 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/1313279 Title: xHCI host not responding to stop endpoint command Status in Linux: Unknown Status in linux package in Ubuntu: Confirmed Bug description: Description: Ubuntu 14.04 LTS Release: 14.04 Hardware: Intel NUC D34010WYK (Core i3 4010U) Memory: 4 gigabytes USD device: PCTV 292e DVB-T tuner I have 2 PCTV 292e DVB-T tuners connected to the system. When I start to use either of the tuner, the xHCI host crashes. Since I'm booting from an USB disk. If I only connect 1 of the tuners, the system works ok. It does not matter which one of the tuners I connect. [ 68.990396] xhci_hcd 0000:00:14.0: xHCI host not responding to stop endpoint command. [ 68.990402] xhci_hcd 0000:00:14.0: Assuming host is dying, halting host. Sometimes this also leads to this: [ 638.183002] IP: [<ffffffff815325dd>] usb_enable_link_state+0x2d/0x2f0 [ 638.183057] PGD 0 [ 638.183077] Oops: 0000 [#1] SMP I can also observe the same fault with OpenELEC Linux distribution that runs kernel 3.14 when I run the system from an internal SATA SSD drive (not from an external USB disk). lsusb -v: http://paste.ubuntu.com/7343384/ dmesg: http://sprunge.us/HMXH dmesg (crash type 2): http://sprunge.us/PSiX ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: lubuntu-desktop 0.55 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 Date: Sun Apr 27 11:12:22 2014 InstallationDate: Installed on 2014-04-07 (19 days ago) InstallationMedia: Lubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) SourcePackage: lubuntu-meta UpgradeStatus: Upgraded to trusty on 2014-04-26 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1313279/+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