imx8mq+yocto+4.9.51_ga:USB3.0 issue

传策薛 — Thu, 14 Mar 2019 09:20:25 GMT

Hi，community:

Our company has customized a motherboard for imx8mq, running yocto system, there are two usb3.0 interfaces on the motherboard, which are connected by two usb3.0hosts on the cpu, respectively connected to two usb3.0 interface cameras. At the same time, two cameras are taken to take the image stream, and the operation is normal at the beginning. After a period of time, the following error is printed:
[ 1163.760957] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.763187] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.765412] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.767643] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.769866] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.772090] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.774313] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.776538] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.778765] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.780990] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.783216] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.785440] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.787663] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[1163.789894] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.792118] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.794342] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.796564] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.798786] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.801017] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[1163.803243] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[1163.805466] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[1163.807692] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[1163.809914] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.812142] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[ 1163.814363] xhci-hcd xhci-hcd.0.auto: Ring expansion failed
[1164.500502] systemd-journald[1737]: /dev/kmsg buffer overrun, some messages lost.
[ 1164.514332] xhci-hcd xhci-hcd.0.auto: Ring expansion failed

What is the problem with this?

Re: imx8mq+yocto+4.9.51_ga:USB3.0 issue

igorpadykov — Thu, 14 Mar 2019 09:56:34 GMT

Hi 传策薛

RE: XHCI: Ring expansion failure — Linux USB

please try latest Linux L4.14.78

linux-imx - i.MX Linux kernel
Linux L4.14.78_1.0.0 Documentation
i.MX Software | NXP

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

Re: imx8mq+yocto+4.9.51_ga:USB3.0 issue

传策薛 — Fri, 15 Mar 2019 00:33:21 GMT

Is Linux L4.14.78 a GA version?

Re: imx8mq+yocto+4.9.51_ga:USB3.0 issue

igorpadykov — Fri, 15 Mar 2019 01:36:39 GMT

yes it is GA, one can check:

i.MX Software | NXP

Best regards
igor

i.MX ProcessorsのトピックRe: imx8mq+yocto+4.9.51_ga:USB3.0 issue

imx8mq+yocto+4.9.51_ga:USB3.0 issue

Re: imx8mq+yocto+4.9.51_ga:USB3.0 issue

Re: imx8mq+yocto+4.9.51_ga:USB3.0 issue

Re: imx8mq+yocto+4.9.51_ga:USB3.0 issue