This bug was nominated against a series that is no longer supported, ie
artful. The bug task representing the artful nomination is being closed
as Won't Fix.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu Artful)
Status: In Progress => Won't Fix
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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:
In Progress
Status in linux source package in Xenial:
In Progress
Status in linux source package in Artful:
Won't Fix
Status in linux source package in Bionic:
In Progress
Status in linux package in Debian:
New
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:
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