USB3 express card panics on 9.0-RC1

I have bought a "Super-speed Express Card To USB 3.0 1-Port" to connect 
an USB3 hard disk to my Thinkpad T510, which only has USB2.

Trying to hot plug the express card did nothing, but I guess that is 
expected. Hence, I booted with the express card already inserted, only 
to receive a panic upon xhci0 initialization, see below.

This is on FreeBSD 9.0-RC1/amd64 with a generic kernel installed from 
the official DVD.

I guess I could test 226803 mentioned in 
http://lists.freebsd.org/pipermail/freebsd-usb/2011-October/010746.html 
, which happened after RC1, but from the commit message, it only fixes 
suspend and resume.

As I do not have much time now, should I test 226803, find a Linux CD to 
actually identify the device, or anything else?

Cheers,
Jan Henrik


usbus0: 480 Mbps High Speed USB v2.0

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x18
fault code              = supervisor write data, page not present
instruction ponter      = 0x20:0xffffffff806e80aa
stack pointer           = 0x28:0xffffff810ee50bc0
frame pointer           = 0x28:0xffffff810ee50bf0
code segment            = base 0x0, limit 0xfffff, type 0x16
                         = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 15 (xhci0)
trap number             = 12
panic: page fault
cpuid = 0
Uptime = 1s
Automatic reboot in 15 seconds - press a key on the console to abort