3010 Tx0s are getting Trap Data Abort errors--please insert a USB stick

After updating our 3010 Tx0s to 8.6_027, a couple of people received the Trap:  Data abort error...with a bunch of code...and then at the bottom it says insert a USB stick.  We have to push the power button to turn it off and restart the device.  Any ideas on what causes this/how to resolve this?  Thanks.