On 31-Jan-99 Bernd Ernesti spoke unto us all:
#  I burned a cd with the diskimage from tim and got major problems with
#  the ncr driver. The same problem happens when I build my own diskimage.
#  What is really strange is that i have no problem when i boot the
#  netbsd.gz from my ide drive (thats the kernel which is used in the
#  diskimage).
#  Oh, and there is no problem when I boot from the same cd (i love CDRW's)
#  with the 19981016 diskimage.

I've heard of some other people with this problem too on recent -current.. 
Just as a data point:

Symbios Logic 53c810 (SCSI mass storage, revision 0x12) at ? dev 9 function 0
(tag 0x4800, intrtag 0x4800, intrswiz 0, 
intrpin 0x1, i/o on, mem on, no quirks): ncr 53c810a fast10 scsi
ncr0: interrupting at eb164 irq 3
ncr0: minsync=25, maxsync=206, maxoffs=8, 16 dwords burst, normal dma fifo
ncr0: single-ended, open drain IRQ driver
ncr0: restart (scsi reset).
scsibus0 at ncr0: 8 targets, 8 luns per target
sd0 at scsibus0 targ 0 lun 0: <IBM, CFA170S       !S, 167A> SCSI2 0/direct fixed
sd0(ncr0:0:0): 10.0 MB/s (100 ns, offset 8)
sd0: 163MB, 2111 cyl, 2 head, 79 sec, 512 bytes/sect x 335270 sectors
sd1 at scsibus0 targ 1 lun 0: <IBM, CFA170S       !S, 167A> SCSI2 0/direct fixed
sd1(ncr0:1:0): 10.0 MB/s (100 ns, offset 8)
sd1: 163MB, 2111 cyl, 2 head, 79 sec, 512 bytes/sect x 335270 sectors
sd2 at scsibus0 targ 2 lun 0: <IBM, CFA170S       !S, 167A> SCSI2 0/direct fixed
sd2(ncr0:2:0): 10.0 MB/s (100 ns, offset 8)
sd2: 163MB, 2111 cyl, 2 head, 79 sec, 512 bytes/sect x 335270 sectors
sd3 at scsibus0 targ 3 lun 0: <IBM, CFA170S       !S, 167A> SCSI2 0/direct fixed
sd3(ncr0:3:0): 10.0 MB/s (100 ns, offset 8)
sd3: 163MB, 2111 cyl, 2 head, 79 sec, 512 bytes/sect x 335270 sectors
sd4 at scsibus0 targ 4 lun 0: <SEAGATE, ST15230W SUN4.2G, 0738> SCSI2 0/direct
fixed
sd4(ncr0:4:0): 10.0 MB/s (100 ns, offset 8)
sd4: 4095MB, 3992 cyl, 19 head, 110 sec, 512 bytes/sect x 8386733 sectors
cd0 at scsibus0 targ 6 lun 0: <SONY, CD-ROM CDU-55S, 1.0t> SCSI2 5/cdrom
removable

I have 0 problems with this setup.

---
Tim Rightnour  -  root@garbled.net
Free Multi-Platform Operating System: http://www.netbsd.org
NetBSD Mailing lists on the web: http://mail-index.netbsd.org/mlist