Hi John, The webcam in my trace is https://www.amazon.com/gp/product/B07P7YSZV1/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 The pcie card that looks identical to this one https://www.newegg.com/model-orico-pa31-2p-pci-express-to-usb-card/p/17Z-0003-00008?Description=usb%203.1%20&cm_re=usb_3.1-_-9SIA1DS4TW2779-_-Product
I could mail you one of each if you're interested in working on a fix. On Wed, May 6, 2020 at 8:50 AM John Jackson <1749...@bugs.launchpad.net> wrote: > Hi Ubuntu Community, > > I would like to find one of the COTS products that is reproducing this > issue. From reading the thread above it looks like it is a camera and a > usb ethernet adapter. Does anyone have more specifics or a product link > where I can purchase these. I currently havent seen the issue with a Usb > block device such as a JMicron nvme to usb device type c, but I will > continue testing. > > Where can i find this camera? > Camera 1080p60 USB3 webcam > idVendor=15aa, idProduct=1555 > > > Thanks, > John > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1749961 > > Title: > xhci_hcd: TRB DMA errors reported with ASMedia ASM1142 USB 3.1 > Controller > > Status in linux package in Ubuntu: > In Progress > Status in linux source package in Trusty: > Won't Fix > Status in linux source package in Xenial: > In Progress > Status in linux source package in Bionic: > In Progress > Status in linux source package in Focal: > Confirmed > Status in linux package in Debian: > Confirmed > > Bug description: > It was observed that while trying to use a 4K USB webcam connected to > USB port provided by ASMedia ASM1142 USB 3.1 Controller, the webcam > does not work and kernel log shows the following messages: > > [431.928016] xhci_hcd 0000:12:00.0: ERROR Transfer event TRB DMA ptr not > part of current TD ep_index 2 comp_code 13 > [431.928021] xhci_hcd 0000:12:00.0: Looking for event-dma > 0000003f3330e020 trb-start 0000003f3330e000 trb-end 0000003f3330e000 > seg-start 0000003f3330e000 seg-end 0000003f3330eff0 > [431.928024] xhci_hcd 0000:12:00.0: ERROR Transfer event TRB DMA ptr not > part of current TD ep_index 2 comp_code 13 > [431.928026] xhci_hcd 0000:12:00.0: Looking for event-dma > 0000003f3330e030 trb-start 0000003f3330e000 trb-end 0000003f3330e000 > seg-start 0000003f3330e000 seg-end 0000003f3330eff0 > [431.928027] xhci_hcd 0000:12:00.0: ERROR Transfer event TRB DMA ptr not > part of current TD ep_index 2 comp_code 13 > [431.928029] xhci_hcd 0000:12:00.0: Looking for event-dma > 0000003f3330e050 trb-start 0000003f3330e000 trb-end 0000003f3330e000 > seg-start 0000003f3330e000 seg-end 0000003f3330eff0 > [431.928386] xhci_hcd 0000:12:00.0: ERROR Transfer event TRB DMA ptr not > part of current TD ep_index 2 comp_code 13 > > A similar issue was already reported on Launchpad: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667750 > > The fix to this issue seems to be the following patch: > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9da5a109 > > Tests in our scenario with this patch proved still broken. Our next > approach is to modify the patch a bit and re-test. > > This LP will be used to document our progress in the investigation. > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749961/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749961 Title: xhci_hcd: TRB DMA errors reported with ASMedia ASM1142 USB 3.1 Controller To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749961/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
