USB problems on FreeBSD-current and Raspberry Pi3B+, MMCCAM perhaps?

[bob prohaska]

On Sat, Jan 09, 2021 at 05:49:40PM -0800, Michael Sierchio wrote:
> On Sat, Jan 9, 2021 at 12:33 PM bob prohaska <fbsd at www.zefox.net> wrote:
> 
> > A UGreen USB3 storage card adapter (model 30333) has stopped working
> > with FreeBSD-current, reporting a stream of
> >
> > (da1:umass-sim1:1:0:0): TEST UNIT READY. CDB: 00 00 00 00 00 00
> > (da1:umass-sim1:1:0:0): CAM status: SCSI Status Error
> 
> 
> sysctl kern.cam | grep delay
> ?

Seems to be 
bob at www:~ % sysctl kern.cam | grep delay
kern.cam.scsi_delay: 5000
kern.cam.debug_delay: 0
kern.cam.boot_delay: 20000

Didn't change when I plugged in the adapter. Incidentally, the
machine didn't panic when I unplugged the adapter this time. 

Serial console output returned to normal after unplugging with

.....
(da3:umass-sim1:1:0:2): Error 6, Unretryable error
(da4:umass-sim1:1:0:3): TEST UNIT READY. CDB: 00 00 00 00 00 00 
(da4:umass-sim1:1:0:3): CAM status: SCSI Status Error
(da4:umass-sim1:1:0:3): SCSI status: Check Condition
(da4:umass-sim1:1:0:3): SCSI sense: NOT READY asc:3a,0 (Medium not present)
(da4:umass-sim1:1:0:3): Error 6, Unretryable error
ugen1.9: <Generic USB Storage> at usbus1 (disconnected)
umass1: at uhub1, port 2, addr 9 (disconnected)
(noperiph:umass-sim1:1:-1:ffffffff): xpt_async(AC_LOST_DEVICE)
(da1:umass-sim1:1:0:0): Periph invalidated
da1 at umass-sim1 bus 1 scbus2 target 0 lun 0
da1: <Generic STORAGE DEVICE 1206>  s/n 000000001206 detached
(pass2:umass-sim1:1:0:0): Periph invalidated
(da2:umass-sim1:1:0:1): (da1:umass-sim1:1:0:0): Periph destroyed
Periph invalidated
(pass2:umass-sim1:1:0:0): da2 at umass-sim1 bus 1 scbus2 target 0 lun 1
da2: <Generic STORAGE DEVICE 1206>  s/n 000000001206 detached
Periph destroyed
(pass3:umass-sim1:1:0:1): Periph invalidated
(da3:umass-sim1:1:0:2): Periph invalidated
(pass3:umass-sim1:1:0:1): da3 at umass-sim1 bus 1 scbus2 target 0 lun 2
da3: <Generic STORAGE DEVICE 1206>  s/n 000000001206 detached
Periph destroyed
(pass4:umass-sim1:1:0:2): Periph invalidated
(da2:umass-sim1:1:0:1): Periph destroyed
(pass4:umass-sim1:1:0:2): (da4:umass-sim1:1:0:3): Periph destroyed
Periph invalidated
(da3:umass-sim1:1:0:2): Periph destroyed
da4 at umass-sim1 bus 1 scbus2 target 0 lun 3
da4: <Generic STORAGE DEVICE 1206>  s/n 000000001206 detached
(pass5:umass-sim1:1:0:3): Periph invalidated
(noperiph:umass-sim1:1:-1:ffffffff): (pass5:umass-sim1:1:0:3): xpt_async(AC_PATH_DEREGISTERED)
Periph destroyed
(da4:umass-sim1:1:0:3): Periph destroyed
umass1: detached

The login prompt returned as usual.

Thanks for writing!

bob prohaska