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Date: Sat, 30 Mar 2002 13:46:44 -0800 (PST)
From: Matthias Andree <matthias.andree@web.de>
To: freebsd-gnats-submit@FreeBSD.org
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Subject: kern/36549: sym driver fails on Tekram DC-390U in 486 machine
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>Number:         36549
>Category:       kern
>Synopsis:       sym driver fails on Tekram DC-390U in 486 machine
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Mar 30 13:50:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Matthias Andree
>Release:        4.5-RELEASE
>Organization:
>Environment:
(cannot be obtained) Cyrix 5x86/100 with UMC8881/8886 PCI chip set. 24 MB RAM.
>Description:
At Kernel boot time, the sym driver hangs the kernel when probing devices. The last lines I see are (not verbatim):

1. sending SCSI reset
2. waiting 15 seconds for SCSI devices to settle
3. sym0:0 ERROR (81:0) (8-0-0) (0/5) @ (mem 8:f000f7c8)
4. register dump (not copied here)

It's a DC-390U card, which has a Symbios 53C875 manufactured 9752R. The DC-390U has two 50-pin (narrow SCSI) connectors.

The only attached device is a Plextor PX-20 TSi CD-ROM at unit #2 (the adaptor has unit #7). PCI IRQ is unshared. The Plextor is terminated and is detected at boot time or by NetBSD 1.5.

The card is fine with NetBSD 1.5 or Linux 2.2/2.4. The card is also fine in a newer main board (Gigabyte 7ZX-R, with Duron/700 and VIA KT133 chip set).
>How-To-Repeat:
      
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted:

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