i just recently tried out the new esp.c (version 1.20) with a
cdrom drive under netbsd/sparc.  i got this:

Jun 18 01:06:24 netbsd syslogd: exiting on signal 15
Jun 18 01:10:06 netbsd syslogd: restart
Jun 18 01:10:06 netbsd /netbsd: Copyright (c) 1982, 1986, 1989, 1991, 1993
Jun 18 01:10:06 netbsd /netbsd:         The Regents of the University of California.  All rights reserved.
Jun 18 01:10:06 netbsd /netbsd:
Jun 18 01:10:07 netbsd /netbsd: NetBSD 1.0A (_splode_) #232: Sun Jun 18 00:01:58 EST 1995
Jun 18 01:10:07 netbsd /netbsd:     mrg@splode.mame.mu.OZ.AU:/orb/q/build/src/sys/arch/sparc/compile/_splode_
Jun 18 01:10:07 netbsd /netbsd: real mem = 16515072
Jun 18 01:10:07 netbsd /netbsd: avail mem = 14209024
Jun 18 01:10:07 netbsd /netbsd: using 201 buffers containing 823296 bytes of memory
Jun 18 01:10:08 netbsd /netbsd: mainbus0 (root)
Jun 18 01:10:08 netbsd /netbsd: cpu0 at mainbus0: SUNW,Sun 4/25 (W8601/8701 or MB86903 @ 33 MHz, on-chip FPU)
Jun 18 01:10:08 netbsd /netbsd: cpu0: cache chip bug; trap page uncached
Jun 18 01:10:08 netbsd /netbsd: cpu0: 65536 byte write-through, 32 bytes/line, hw flush cache enabled
Jun 18 01:10:08 netbsd /netbsd: memreg0 at mainbus0 ioaddr 0xf4000000
Jun 18 01:10:08 netbsd /netbsd: clock0 at mainbus0 ioaddr 0xf2000000: mk48t02 (eeprom)
Jun 18 01:10:09 netbsd /netbsd: timer0 at mainbus0 ioaddr 0xf3000000
Jun 18 01:10:09 netbsd /netbsd: auxreg0 at mainbus0 ioaddr 0xf7400003
Jun 18 01:10:09 netbsd /netbsd: zs0 at mainbus0 ioaddr 0xf1000000 pri 12, softpri 6
Jun 18 01:10:09 netbsd /netbsd: zs1 at mainbus0 ioaddr 0xf0000000 pri 12, softpri 6
Jun 18 01:10:09 netbsd /netbsd: audio0 at mainbus0 ioaddr 0xf7201000 pri 13, softpri 4
Jun 18 01:10:09 netbsd /netbsd: sbus0 at mainbus0 ioaddr 0xf8000000: clock = 20 MHz
Jun 18 01:10:10 netbsd /netbsd: dma0 at sbus0 slot 0 offset 0x400000: rev 1+
Jun 18 01:10:10 netbsd /netbsd: esp0 at sbus0 slot 0 offset 0x800000 pri 3: ESP100 20Mhz, target 7
Jun 18 01:10:10 netbsd /netbsd: scsibus0 at esp0
Jun 18 01:10:10 netbsd /netbsd: esp0 targ 2 lun 0: <QUANTUM, LIGHTNING 730S, 241E> SCSI2 0/direct fixed
Jun 18 01:10:11 netbsd /netbsd: sd0 at scsibus0: 699MB, 3658 cyl, 4 head, 97 sec, 512 bytes/sec
Jun 18 01:10:11 netbsd /netbsd: esp0 targ 6 lun 0: <SONY, CD-ROM CDU-8012, 3.1e> SCSI2 5/cdrom removable
Jun 18 01:10:11 netbsd /netbsd: cd0 at scsibus0: cd present, 655320 x 512 byte records
Jun 18 01:10:11 netbsd /netbsd: esp0(6,1): MSGIN failed; trying alt selection
Jun 18 01:10:12 netbsd /netbsd: esp: resetting SCSI bus
Jun 18 01:10:12 netbsd /netbsd: esp0: stray interrupt
Jun 18 01:10:12 netbsd /netbsd: esp0 targ 6 lun 1: <, , > SCSI0 0/direct fixed
Jun 18 01:10:12 netbsd /netbsd: sd1 at scsibus0sd1: mode sense (4) returned nonsense; using fictitious geometry
Jun 18 01:10:12 netbsd /netbsd: : 0MB, 0 cyl, 64 head, 32 sec, 512 bytes/sec
Jun 18 01:10:13 netbsd /netbsd: esp0 targ 6 lun 2: <SONY, CD-ROM CDU-8012, 3.1e> SCSI2 5/cdrom removable
Jun 18 01:10:13 netbsd /netbsd: cd1 at scsibus0cd1(esp0:6:2): illegal request, data = 00 00 00 00 25 00 00 00
Jun 18 01:10:13 netbsd /netbsd: : drive empty
Jun 18 01:10:14 netbsd /netbsd: probe(esp0:6:3): timed out
Jun 18 01:10:14 netbsd last message repeated 5 times
Jun 18 01:10:14 netbsd /netbsd: probe(esp0:6:4): timed out
Jun 18 01:10:14 netbsd last message repeated 5 times
Jun 18 01:10:14 netbsd /netbsd: probe(esp0:6:5): timed out
Jun 18 01:10:14 netbsd last message repeated 5 times
Jun 18 01:10:14 netbsd /netbsd: probe(esp0:6:6): timed out
Jun 18 01:10:15 netbsd last message repeated 5 times
Jun 18 01:10:15 netbsd /netbsd: probe(esp0:6:7): timed out
Jun 18 01:10:15 netbsd last message repeated 5 times
Jun 18 01:10:15 netbsd /netbsd: le0 at sbus0 slot 0 offset 0xc00000 pri 5: hardware address 08:00:20:03:99:c6
Jun 18 01:10:15 netbsd /netbsd: bwtwo0 at sbus0 slot 3 offset 0x0: SUNW,501-1561, 1152 x 900 (console)
Jun 18 01:10:15 netbsd /netbsd: fd at mainbus0 ioaddr 0xf7200000 not configured
Jun 18 01:10:10 netbsd cron[90]: (CRON) STARTUP (fork ok)
Jun 18 01:10:11 netbsd cron[90]: (tmp.23586) ORPHAN (no passwd entry)
Jun 18 01:10:11 netbsd named[94]: restarted
Jun 18 01:10:14 netbsd sendmail[99]: starting daemon (8.6.11): SMTP+queueing@00:30:00

the timings on these are a bit out.. there was several minutes between the
`netbsd: : drive empty' message, and the `netbsd: le0 at ...' message....
then system then hung after the `/netbsd: fd at ...' message for several
more minutes, before continuing.

the machine paniced when it went multi-user.  i didn't catch what for.

.mrg.
.mrg.