I think we all get burned by the NCR chip. Currently I have case which is
hard to repeat where null sense data is shipped back for the request
sense associated with some command during probing.


On Sun, 31 Jan 1999, Tim Rightnour wrote:

> 
> 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
>