Camcontrol cannot be killed and hangs forever

[Christoph Kukulies]

I ran camcontrol on a FreeBSD 12.1 system in order to rescan the SCSI Bus 

# camcontrol rescan all
Re-scan of bus 0 was successful
Re-scan of bus 1 was successful
Re-scan of bus 2 was successful
Re-scan of bus 3 was successful
Re-scan of bus 4 was successful
Re-scan of bus 5 was successful
Re-scan of bus 6 was successful

^C
^C^C^C

Trying to kill -9 the process to no avail


Any clues?

—
Christoph