[ 5.9727975] panic: usbd_transfer: not done
[ 6.0611224] cpu0: Begin traceback...
[ 6.1478907] 0x9c695b84: netbsd:db_panic+0x14
[ 6.2380975] 0x9c695b9c: netbsd:vpanic+0x194
[ 6.3276372] 0x9c695bb4: netbsd:snprintf
[ 6.4161552] 0x9c695bf4: netbsd:usbd_sync_transfer
[ 6.5075330] 0x9c695c34: netbsd:usbd_do_request_flags+0xa4
[ 6.6012676] 0x9c695c4c: netbsd:usbd_do_request+0x20
[ 6.6932964] 0x9c695c7c: netbsd:usbd_set_idle+0x70
[ 6.7838060] 0x9c695d54: netbsd:uhidev_attach+0xdc
[ 6.8737881] 0x9c695d8c: netbsd:config_attach_loc+0x1b4
[ 6.9701440] 0x9c695dbc: netbsd:config_found_sm_loc+0x54
[ 7.0606941] 0x9c695e5c: netbsd:usbd_attachinterfaces+0x1b0
[ 7.1525235] 0x9c695e8c: netbsd:usbd_probe_and_attach+0x84
[ 7.2413633] 0x9c695ef4: netbsd:usbd_new_device+0x254
[ 7.3280048] 0x9c695f5c: netbsd:uhub_explore+0x2dc
[ 7.4155137] 0x9c695f84: netbsd:usb_discover.isra.2+0x74
[ 7.5044602] 0x9c695fac: netbsd:usb_event_thread+0x84
[ 7.5926830] cpu0: End traceback...
Stopped in pid 0.59 (system) at netbsd:cpu_Debugger+0x4: bx r14
Any ideas ?