SCSI problem on PPC1Bug FW system

[Geert Uytterhoeven]

On Wed, 18 Aug 1999, Hank De Gregorio wrote:
> when booting one of gabriel's installation kernels (zImage.initrd-2.2.4),
> i got the following error.  my scsi drive was recognized, but there is a
> "parity error" when it is being initialized.  is this just a matter of
> needing a wide active terminator for my scsi? 
> 
> hank (thanks, don, for helping get me past the last problem; i needed to 
> disable VME3PCI Master Master)
> 
> --snip
> ncr53c825a-0: Downloading SCSI SCRIPTS.
> scsi0 : ncr53c8xx - version 3.2
> scsi : 1 host.
>   Vendor: SEAGATE   Model: ST39175LW         Rev: 0001
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
> ncr53c825a-0-<0,0>: tagged command queue depth set to 8
> scsi : detected 1 SCSI disk total.
> ncr53c825a-0-<0,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
> ncr53c825a-0: SCSI parity error detected: SCR1=3 DBC=19000000 SSTAT1=9
> ncr53c825a-0:0: ERROR (81:0) (6-a3-2) (8/1b) @ (scripth ba0:48000000).
> ncr53c825a-0: script cmd = 785d8700
> ncr53c825a-0: regdump: da 10 00 1b 47 08 00 0f 06 06 80 a3 80 00 0b 00.
> ncr53c825a-0: have to clear fifos.
> ncr53c825a-0: restart (scsi reset).
> ncr53c825a-0: Downloading SCSI SCRIPTS.
> ncr53c825a-0: SCSI parity error detected: SCR1=1 DBC=19000000 SSTAT1=1
> ncr53c825a-0-<0,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)

It's probably a cable/termination problem.

Or have you connected your wide devices to the narrow connector on the adapter
using a wide-narrow convertor? I once did that when I didn't have a wide cable,
and it caused the same problems (driver negotiates wide transfers since it
recognizes a wide device).

Greetings,

						Geert

--
Geert Uytterhoeven                     Geert.Uytterhoeven at cs.kuleuven.ac.be
Wavelets, Linux/{m68k~Amiga,PPC~CHRP}  http://www.cs.kuleuven.ac.be/~geert/
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium


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