[Bug 240285] USB 3.0 xhci loops resetting controller

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240285

            Bug ID: 240285
           Summary: USB 3.0 xhci loops resetting controller
           Product: Base System
           Version: 12.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: usb
          Assignee: usb at FreeBSD.org
          Reporter: tomdean at wavecable.com

Created attachment 207110
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=207110&action=edit
lspci -v from a Ubuntu on the same machine.

This does not happen with Ubuntu, which uses the xhci)hcd driver.

ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller

With nothing connected, USB 3.0 seems to be in a loop.

>From dmesg:

xhci1: Resetting controller
ugen2.2: <vendor 0x2109 product 0x0810> at usbus2
uhub6 on uhub3
uhub6: <vendor 0x2109 product 0x0810, class 9/0, rev 3.00/33.88, addr 1> on
usbus2
uhub6: 4 ports with 4 removable, self powered
ugen2.3: <vendor 0x2109 USB2.0 Hub> at usbus2
uhub7 on uhub3
uhub7: <vendor 0x2109 USB2.0 Hub, class 9/0, rev 2.00/2.88, addr 2> on usbus2
uhub7: 4 ports with 4 removable, self powered
uhub3: at usbus2, port 1, addr 1 (disconnected)
ugen2.2: <vendor 0x2109 product 0x0810> at usbus2 (disconnected)
uhub6: at uhub3, port 1, addr 1 (disconnected)
uhub6: detached
ugen2.3: <vendor 0x2109 USB2.0 Hub> at usbus2 (disconnected)
uhub7: at uhub3, port 3, addr 2 (disconnected)
uhub7: detached
uhub3: <0x1b21 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus2
uhub3: 4 ports with 4 removable, self powered
xhci1: Resetting controller
ugen2.2: <vendor 0x2109 product 0x0810> at usbus2
uhub6 on uhub3
uhub6: <vendor 0x2109 product 0x0810, class 9/0, rev 3.00/33.88, addr 1> on
usbus2
uhub6: 4 ports with 4 removable, self powered
ugen2.3: <vendor 0x2109 USB2.0 Hub> at usbus2
uhub7 on uhub3
uhub7: <vendor 0x2109 USB2.0 Hub, class 9/0, rev 2.00/2.88, addr 2> on usbus2
uhub7: 4 ports with 4 removable, self powered
uhub3: at usbus2, port 1, addr 1 (disconnected)
ugen2.2: <vendor 0x2109 product 0x0810> at usbus2 (disconnected)
uhub6: at uhub3, port 1, addr 1 (disconnected)
uhub6: detached
ugen2.3: <vendor 0x2109 USB2.0 Hub> at usbus2 (disconnected)
uhub7: at uhub3, port 3, addr 2 (disconnected)
uhub7: detached
uhub3: <0x1b21 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus2
uhub3: 4 ports with 4 removable, self powered
xhci1: Resetting controller
ugen2.2: <vendor 0x2109 product 0x0810> at usbus2
uhub6 on uhub3
uhub6: <vendor 0x2109 product 0x0810, class 9/0, rev 3.00/33.88, addr 1> on
usbus2

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