USB hangs during boot of 4.9

[Paul Horechuk]

I had been running a stable 4.9 prerelease and evrything was working
fine. During some playing with X and DRI vs GFX, I was prompted to add
USER_LDT as an option to the kernel. This I did and did a new cvsup to
the code as of 9-21-03. The makeworld process left me with a system
that now hangs after the normal resetting of the usb hub. To get by
this during boot, I have to disable USB in BIOS. Of course I no longer
have a mouse, now.

Did I miss any USB alerts?