# uname -a Linux 1void 6.12.9_1 #1 SMP PREEMPT_DYNAMIC Fri Jan 10 00:53:27 UTC 2025 x86_64 GNU/Linux
OK. I'm getting somewhere and starting to get a pretty picture of what is likely transpiring! My xhci_hcd fail on this bug is occurring on my second bus. (eg. dmesg |grep 2-4 -> usb 2-4) This is second USB bus on the Gigabyte "Z790 UD AC" make/model board is the 5GB USB device! lsusb -t Bus 002.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/9p, 20000M/x2 Port 004: Dev 009, If 0, Class=Hub, Driver=hub/4p, 5000M Port 006: Dev 018, If 0, Class=Mass Storage, Driver=usb-storage, 5000M DEVICE IDs idVendor=0451, idProduct=8041 (hub) dmesg |grep 2-4 [ 6.497899] usb 2-4: new SuperSpeed USB device number 2 using xhci_hcd [ 6.509171] usb 2-4: New USB device found, idVendor=0451, idProduct=8041, bcdDevice= 1.00 [ 6.509175] usb 2-4: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 6.509932] hub 2-4:1.0: USB hub found [ 6.509959] hub 2-4:1.0: 4 ports detected Looks like this is occurring on the Gigabyte Z790 UD AC 1 x USB 3.2 Gen 2 bus/ports, red port rated for 5Gb/s and reporting 5000Mb/s via Linux USB utilities. Since this 5GB USB tech is likely new, likely seeing a bug with with either the BIOS/EFI initialization of the on-board motherboard USB 5GB PCI device, or a kernel driver bug with initialization of the on-board motherboard USB 5GB PCI device. I'm more less guessing, the bug is Linux kernel driver related, as I'm not seeing significant similar delays with Windows 11. This bug is still occurring apparently randomly, from reboot to cold start, without apparent pattern here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1667750 Title: xhci_hcd: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 2 comp_code 13 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1667750/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
