Because of the sparse population of Knoppix7.0.3*HP 32 GB stick, you may be the only one having experienced this - which doesn't make it any less a bug. And the person to experience a bug, is the who should file it.
As I wrote, you should maybe try try 3.4.4 on 7.0.2 with 3.4.4 USB-related modules too, if you haven't. Three obvious candidates are usb_storage, usbhid and hid, but there may be more.