[Bug 220549] External USB 3.0 drive does not work when attached to USB 2.0 port in laptop

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220549

            Bug ID: 220549
           Summary: External USB 3.0 drive does not work when attached to
                    USB 2.0 port in laptop
           Product: Base System
           Version: 11.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: usb
          Assignee: freebsd-usb at FreeBSD.org
          Reporter: vermaden at interia.pl

When I attach working Western Digital Elements 2TB Drive with USB 3.0 interface
to Lenovo Thinkpad T520 laptop with USB 2.0 port, it does not work.

The FreeBSD release is 11.1-RC1.

# uname -a
FreeBSD t520.local 11.1-RC1 FreeBSD 11.1-RC1 #0 r320486: Fri Jun 30 02:25:16
UTC 2017     root at releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64

Below are messages when I attach the drive.

# cat /var/log/messages
Jul  8 00:14:18 t520 kernel: ugen1.4: <Western Digital Elements 1048> at usbus1
Jul  8 00:14:18 t520 kernel: umass0 on uhub2
Jul  8 00:14:18 t520 kernel: umass0: <MSC Bulk-Only Transport> on usbus1
Jul  8 00:14:18 t520 kernel: umass0:  SCSI over Bulk-Only; quirks = 0xc101
Jul  8 00:14:18 t520 kernel: umass0:5:0: Attached to scbus5
Jul  8 00:14:25 t520 kernel: (da0:umass-sim0:0:0:0): got CAM status 0x44
Jul  8 00:14:25 t520 kernel: (da0:umass-sim0:0:0:0): fatal error, failed to
attach to device
Jul  8 00:14:25 t520 kernel: g_access(918): provider da0 has error

# dmesg
ugen1.4: <Western Digital Elements 1048> at usbus1
umass0 on uhub2
umass0: <MSC Bulk-Only Transport> on usbus1
umass0:  SCSI over Bulk-Only; quirks = 0xc101
umass0:5:0: Attached to scbus5
(da0:umass-sim0:0:0:0): got CAM status 0x44
(da0:umass-sim0:0:0:0): fatal error, failed to attach to device
g_access(918): provider da0 has error
g_access(918): provider da0 has error
g_access(918): provider da0 has error
g_access(918): provider da0 has error

Regards.

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