Hello, I've upgraded to 5.4-RC1 and I'd like to access an Mpman MP3 Player via USB. When I attach the USB device several messages appear and the Mpman displays "Starting" but then /dev/da0 is not available. The messages look like this: 11:12:22: umass0: vendor 0x10d6 Generic USB Disk Device, rev 1.10/1.00, addr 2 11:12:22: da0 at umass-sim0 bus 0 target 0 lun 0 11:12:22: da0: <GENERIC USB DISK DEVICE 1.00> Removable Direct Access SCSI-2 device 11:12:22: da0: 1.000MB/s transfers 11:12:22: da0: 123MB (252509 512 byte sectors: 64H 32S/T 123C) 11:12:24: umass0: BBB reset failed, STALLED 11:12:24: umass0: BBB bulk-in clear stall failed, STALLED 11:12:24: umass0: BBB bulk-out clear stall failed, STALLED 11:12:24: (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x4, scsi status == 0x0 11:12:24: umass0: BBB reset failed, STALLED 11:12:24: umass0: BBB bulk-in clear stall failed, STALLED 11:12:24: umass0: BBB bulk-out clear stall failed, STALLED 11:12:24: umass0: BBB reset failed, STALLED 11:12:24: umass0: BBB bulk-in clear stall failed, STALLED 11:12:24: umass0: BBB bulk-out clear stall failed, STALLED 11:12:24: umass0: BBB reset failed, STALLED 11:12:24: umass0: BBB bulk-in clear stall failed, STALLED 11:12:24: umass0: BBB bulk-out clear stall failed, STALLED 11:12:24: umass0: BBB reset failed, STALLED 11:12:24: umass0: BBB bulk-in clear stall failed, STALLED 11:12:24: umass0: at uhub2 port 1 (addr 2) disconnected 11:12:24: (da0:umass-sim0:0:0:0): lost device 11:12:24: (da0:umass-sim0:0:0:0): removing device entry 11:12:24: Opened disk da0 -> 5 11:12:24: umass0: detached For comparison 5.3 calls the kernel debugger and NetBSD waits a little longer and then allows access on the Mpman. Can I make 5.4-RC1 allow accessing the Mpman? -Hanspeter