Hello,
I am unable to test with the kernel you provided, because my tuner card
doesn't have driver in mainline kernel tree. So I have to compile it
myself and I need kernel headers for this.
So I compiled kernel 4.16 from debian linux-source-4.16 package and
applied the patch you provided:
>From dd0375ffba55172194999d40b35344e9dc2682df Mon Sep 17 00:00:00 2001
From: "Guilherme G. Piccoli" <gpicc...@canonical.com>
Date: Wed, 11 Apr 2018 11:04:13 +0000
Subject: [PATCH] xhci: Add quirk to ASMedia 0x1242 adapter to avoid BEI
Signed-off-by: Guilherme G. Piccoli <gpicc...@canonical.com>
---
drivers/usb/host/xhci-pci.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index d9f831b..0654461 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -213,6 +213,12 @@ static void xhci_pci_quirks(struct device *dev, struct
xhci_hcd *xhci)
xhci->quirks |= XHCI_TRUST_TX_LENGTH;
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
+ pdev->device == 0x1242) {
+ xhci->quirks |= XHCI_AVOID_BEI;
+ pr_warn("QUIRK: XHCI_AVOID_BEI");
+ }
+
+ if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI)
xhci->quirks |= XHCI_ASMEDIA_MODIFY_FLOWCONTROL;
--
2.7.4
Compiled my tuner card driver now and I am testing.
--
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/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:
In Progress
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:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749961/+subscriptions
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