has anyone seen this?  ideas?  it seems like the ctlrhalt/stalled might be
self inflicted?

- erik

harness# cdfs -d /dev/sdU0.0
qhintr: td 0xfffffffff0b64680 csw 0x800d8d40 error 0x40 endpoint stalled
usb epctl clrhalt
[... more of the same]
scsi⇒ lun 0 Rcapacity [8] 00 00 00 00 00 00 00 00
scsi← lun 0 Rcapacity good [8] 
qhintr: td 0xfffffffff0b64680 csw 0x800d8d40 error 0x40 endpoint stalled
usb epctl clrhalt
ep clrhalt for io 0xfffffffff0efcd40
[...; why is nwa never right?]
nwa is 218419 but invis track starts blk 0
cdfs: nwa from drive 0 != computed nwa 218,267
        be careful!  assuming computed nwa
usb epctl clrhalt
ep clrhalt for io 0xfffffffff0efcd40
qhintr: td 0xfffffffff0b64680 csw 0xd8d40 error 0x40 endpoint stalled
[...]
harness# cat d000>/dev/null &
harness# usb epctl clrhalt
ep clrhalt for io 0xfffffffff0efcd40
qhintr: td 0xfffffffff0b64680 csw 0xd8d40 error 0x40 endpoint stalled
usb epctl clrhalt
[... was the command ever sent?]
cat: error reading d000: cmd #a8: no additional sense information
usb epctl clrhalt
ep clrhalt for io 0xfffffffff0efcd40
qhintr: td 0xfffffffff0b64680 csw 0xd8d40 error 0x40 endpoint stalled
[...]

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