weird USB keyboard behavior with new USB stack

[Yuri Pankov]

Hi,

I'm testing new USB stack as part of -CURRENT. My USB keyboard
occasionally locks up (and I need to re-plug it), sends wrong modifiers
keys, etc. which didn't happen with old USB stack. Are there any
settings/options which I can use to debug this problem further?

Info from usbconfig:
ugen0.1: <OHCI root HUB nVidia> at usbus0, cfg=0 md=HOST spd=FULL
(12Mbps) pwr=ON
ugen1.1: <EHCI root HUB nVidia> at usbus1, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=ON
ugen0.2: <IrDA/USB Bridge Sigmatel Inc> at usbus0, cfg=0 md=HOST
spd=FULL (12Mbps) pwr=ON
ugen0.5: <Wireless Battery Free Optical Mouse A4Tech> at usbus0, cfg=0
md=HOST spd=LOW (1.5Mbps) pwr=ON
ugen0.3: <product 0x2050 Cypress Semiconductor> at usbus0, cfg=0 md=HOST
spd=FULL (12Mbps) pwr=ON
ugen0.4: <product 0x004c KYE Systems> at usbus0, cfg=0 md=HOST spd=FULL
(12Mbps) pwr=ON

from dmesg:
ukbd0: <KYE Systems product 0x004c, class 0/0, rev 1.10/1.01, addr 4> on
usbus0


TIA,
Yuri