kldload: can't load ./evilcd3.ko: module already loaded or in kernel
=== step 1: normal attach (seeds announce_buf on the SWI thread) ===
(ch0:evilch0:0:1:0): removing device entry
(probe1:evilch0:0:1:0): inquiry data fails comparison at DV1 step
ch0 at evilch0 bus 0 target 1 lun 0
ch0: <EVILCH OOBTEST 1.0 > Removable Changer SCSI-2 device 
ch0: 3.300MB/s transfers
ch0: 8 slots, 0 drives, 1 picker, 0 portals

=== step 2: destroy, arm INTERMED, re-attach -> stale announce_buf printed ===
--- dmesg tail (the 'ch0: ' line right after the INTERMED marker is
--- the UNINITIALIZED announce_buf printed with %s) ---
(ch0:evilch0:0:1:0): lost device
(ch0:evilch0:0:1:0): removing device entry
(probe1:evilch0:0:1:0): inquiry data fails comparison at DV1 step
ch0 at evilch0 bus 0 target 1 lun 0
ch0: <EVILCH OOBTEST 1.0 > Removable Changer SCSI-2 device 
ch0: 3.300MB/s transfers
ch0: 8 slots, 0 drives, 1 picker, 0 portals
(ch0:evilch0:0:1:0): lost device
(ch0:evilch0:0:1:0): removing device entry
(probe1:evilch0:0:1:0): inquiry data fails comparison at DV1 step
[EVILCH] MODE SENSE page 0x1d -> INTERMED (error==0 path)
ch0 at evilch0 bus 0 target 1 lun 0
ch0: <EVILCH OOBTEST 1.0 > Removable Changer SCSI-2 device 
ch0: 3.300MB/s transfers
ch0:  x^NO