xhci-tegra 3530000.xhci: WARN Event TRB for slot 2 ep 6 with no TDs queued?

i have my custom carrier board ,which design for three usb 3.0.
three usb3.0 design for three cameras.
i have three cameras
when 2 cameras Plug in 2 USB 3.0 port works well.
but when 3 cameras Plug in 3 USB 3.0 port , one of camera Drop frames randomly.
and the syslogs shows message as folllows:

Dec 16 05:39:37 tegra-ubuntu kernel: [ 1926.945293] xhci-tegra 3530000.xhci: WARN Event TRB for slot 1 ep 6 with no TDs queued?
Dec 16 05:39:37 tegra-ubuntu kernel: [ 1926.984147] xhci-tegra 3530000.xhci: WARN Event TRB for slot 1 ep 6 with no TDs queued?
Dec 16 05:39:37 tegra-ubuntu kernel: [ 1927.016435] xhci-tegra 3530000.xhci: WARN Event TRB for slot 1 ep 6 with no TDs queued?
Dec 16 05:39:37 tegra-ubuntu kernel: [ 1927.169403] xhci-tegra 3530000.xhci: WARN Event TRB for slot 2 ep 6 with no TDs queued?
Dec 16 05:39:37 tegra-ubuntu kernel: [ 1927.177579] xhci-tegra 3530000.xhci: WARN Event TRB for slot 3 ep 6 with no TDs queued?
Dec 16 05:39:37 tegra-ubuntu kernel: [ 1927.188751] xhci-tegra 3530000.xhci: WARN Event TRB for slot 3 ep 6 with no TDs queued?
Dec 16 05:39:37 tegra-ubuntu kernel: [ 1927.200934] xhci-tegra 3530000.xhci: WARN Event TRB for slot 2 ep 6 with no TDs queued?
Dec 16 05:39:37 tegra-ubuntu kernel: [ 1927.210058] xhci-tegra 3530000.xhci: WARN Event TRB for slot 2 ep 6 with no TDs queued?

can anyone help me slove this problem?
thanks.

Hi,
You may hit bandwidth limitation. Please check TRM of TX2.

USB 3.0 Ports
USB 3.0 ports only operate in USB 3.0 Super Speed mode. USB 3.0 port 0 is allocated with one Super Speed unit bandwidth,
while USB 3.0 port 1 and port 2 share another Super Speed Bus Instance. This means USB 3.0 port 0 can fully utilize 5 Gb/s
theoretical bandwidth, and another 5 Gb/s theoretical bandwidth is distributed between USB 3.0 port 1 and port 2.

thanks for your replay.
use two cameras and two camera framerate is 100, no frame lost
three cameras and set all camera framerate to 30,then every camera loses its frame.
maybe its not the problem of bandwidth limitation.

whats your mean by TRM of TX2.

Hi,
It is technical reference manual.
https://developer.nvidia.com/embedded/downloads#?search=trm

usb3-1 and usb3-2 share 5Gb/s bandwidth.