Hello,
You PCI device is encountering PCI data parity errors when acting as a
master - detected or signaled by the target - (bunches, it seems).
> sym53c810a-0:1: ERROR (c0:0) (1-21-50) (8/13) @ (script 6b8:19000400).
DSTAT=0xc0 bit 4=MDPE (Master Data Parity Error)
The SCSI parity errors are different cause and BUS.
Your hardware seems to me extremally sick and in various places.
The PCI errors are the more serious, in my opinion.
G�rard.
On Mon, 20 Dec 1999, Hermann Lauer wrote:
> Dear 53c810a Users,
>
> a few weeks ago I bought a cheap MAXTRON MAX-810 (Fast SCSI) Adapter
> with an sym53c810a Chip on it.
>
> I tried two different scsi disk, wich worked on an adaptec 28xx controller,
> but when doing large copys from that disks (i.e, dd if=/dev/sda ...) the
> copy stops afer some time and after a lot of messages the kernel finaly
> died (see attached log file).
>
> I think, maybe I have two problems:
>
> 1) The hardware is somehow brocken or at least sometimes a parity error on the SCSI
> occurs (Termination is ok according to the Adapter manual (Resistor packs
> are installed)).
>
> 2) The driver (and/or the kernel 2.2.13) seems to get confused with that error, so
> after some error retrys the machine hangs with an oops.
>
> I have tried already 2.2.14pre14, but that seems to make no difference.
>
> Next I will try patch-53c8xx-s03-d0x-2.2.13 and see if that makes any difference.
> Also beetween the ncr* and the sym* driver there seems to be no difference.
>
> I have compiled the scsi main module and disk module into the kernel, and load
> the low level driver with insmod, but that shouldn't be a problem, or ?
>
> Any ideas what options to set or what to try next ?
>
> Thanks for any help and thanks to all the code workers...
>
> Greetings
>
> Hermann
>
> --
> Bildverarbeitungsgruppe des Interdiziplinaeren Zentrums fuer
> wissenschaftliches Rechnen, Universitaet Heidelberg
> INF 368; 69120 Heidelberg; Tel: (06221)54-8826, -6314 Fax: -8850
> Email: [EMAIL PROTECTED]
>
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