uhub_reattach_port:413: could not allocate new device!

I've stumbled across another problem with usb2 recently that seems to  
be a regression.  In the past with usb2 I was able to plug in flash  
drives after boot and they would successfully attach, now that is no  
longer the case.  I boot from a usb flash drive that is mounted as / 
dev/da0s1a and I have no problems accessing it.

error message:

Jan 29 19:34:38 attack kernel: usb2_alloc_device:1436: getting device  
descriptor at addr 3 failed!
Jan 29 19:34:39 attack kernel: usb2_pc_common_mem_cb:429: Page offset  
was not preserved!
Jan 29 19:34:39 attack kernel: usb2_req_re_enumerate:1366: addr=3, set  
address failed! (ignored)
Jan 29 19:34:39 attack kernel: usb2_pc_common_mem_cb:429: Page offset  
was not preserved!
Jan 29 19:34:39 attack kernel: usb2_req_re_enumerate:1379: getting  
device descriptor at addr 3 failed!
Jan 29 19:34:40 attack kernel: usb2_pc_common_mem_cb:429: Page offset  
was not preserved!
Jan 29 19:34:40 attack kernel: usb2_req_re_enumerate:1379: getting  
device descriptor at addr 3 failed!
Jan 29 19:34:40 attack kernel: ugen3.3: <> at usbus3 (disconnected)
Jan 29 19:34:40 attack kernel: uhub_reattach_port:413: could not  
allocate new device!


kernel:

FreeBSD attack.young-alumni.com 8.0-CURRENT FreeBSD 8.0-CURRENT #0  
r187791M: Tue Jan 27 13:09:13 CST 2009     root_at_:/usr/obj/usr/src/sys/ 
FAILWHALE  amd64

Thanks,

Chris Ruiz