From nobody@FreeBSD.org  Tue Feb 20 08:14:34 2001
Return-Path: <nobody@FreeBSD.org>
Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21])
	by hub.freebsd.org (Postfix) with ESMTP id 6A51937B491
	for <freebsd-gnats-submit@FreeBSD.org>; Tue, 20 Feb 2001 08:14:31 -0800 (PST)
	(envelope-from nobody@FreeBSD.org)
Received: (from nobody@localhost)
	by freefall.freebsd.org (8.11.1/8.11.1) id f1KGEV456525;
	Tue, 20 Feb 2001 08:14:31 -0800 (PST)
	(envelope-from nobody)
Message-Id: <200102201614.f1KGEV456525@freefall.freebsd.org>
Date: Tue, 20 Feb 2001 08:14:31 -0800 (PST)
From: feczo@koli.kando.hu
To: freebsd-gnats-submit@FreeBSD.org
Subject: ... SCB Memory Parity Error at seqaddr = 0x1
X-Send-Pr-Version: www-1.0

>Number:         25230
>Category:       misc
>Synopsis:       ... SCB Memory Parity Error at seqaddr = 0x1
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    gibbs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Feb 20 08:20:01 PST 2001
>Closed-Date:    Thu Nov 15 11:19:22 PST 2001
>Last-Modified:  Thu Nov 15 11:19:58 PST 2001
>Originator:     Szabolcs Feczak
>Release:        4.2
>Organization:
Kando Kalman Dormority
>Environment:
FreeBSD bsdevil.koli 4.2-RELEASE FreeBSD 4.2-RELEASE #2: Tue Feb 13 20:41:14 CET 2001     root@bsdevil.koli:/usr/src/sys/compile/BSDEVIL  i386

>Description:
I've set up a gateway with 4 interfaces, 2 private network and dmz.
I'm using private address ranges on lan and using NAT to reach
the outside world from the workstations, I've also set up transparent
proxy with oops. The machine based on the Intel DK440LX mainboard,
using a 4GB scsi-2 disk and 128Mb of ram with 2 Compaq netelligent PCI,
1 3Com 509B combo ISA, and 1 Digital chip based PCI card.

The machine frozes if it gets more than some connection to NAT,
and after restart during booting the kernel I see the following
displayed : 

... SCB Memory Parity Error at seqaddr = 0x1
And several other numbers 5 or 6 times, but I can't read, because
the text is shaking (alternately prints the one line and the other)

I'v changed memory bank, and changed memory card 2 times ...
First time a similar 100Mhz one second time a brand (Memory Technology)
133Mhz one. I have changed the motherboard (same type), but problem
still exist.

This message only appears at kernel boot time and it won't start at all,
just shaking.
Before the freeze I can't see any suspicious message.


I don't know maybe it it is still a hardware problem 
(but some other os was working good on this hw config, but I've heard, that bsd is more sensitive for good hw components) or just 
I'm too lame to set
some of the kernel parameters ....etc, but I can't find it (what where and why)
Or just hit a bug ?
>How-To-Repeat:
unpredictable
>Fix:

>Release-Note:
>Audit-Trail:

From: David Malone <dwmalone@maths.tcd.ie>
To: feczo@koli.kando.hu
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: misc/25230: ... SCB Memory Parity Error at seqaddr = 0x1
Date: Tue, 20 Feb 2001 16:44:35 +0000

 On Tue, Feb 20, 2001 at 08:14:31AM -0800, feczo@koli.kando.hu wrote:
 > ... SCB Memory Parity Error at seqaddr = 0x1
 > And several other numbers 5 or 6 times, but I can't read, because
 > the text is shaking (alternately prints the one line and the other)
 
 SCBs are to do with SCSI, so it could be that your scsi
 card is busted.
 
 	David.
State-Changed-From-To: open->feedback 
State-Changed-By: gibbs 
State-Changed-When: Mon Feb 26 20:33:35 PST 2001 
State-Changed-Why:  
Your motherboard uses an aic7895.  The aic7xxx driver in 4.2R had some 
issues with this chip.  I believe that all aic7895 issues have been 
resolved in 4.2-stable.  Please upgrade your kernel and report if your 
problem still persists. 


Responsible-Changed-From-To: freebsd-bugs->gibbs 
Responsible-Changed-By: gibbs 
Responsible-Changed-When: Mon Feb 26 20:33:35 PST 2001 
Responsible-Changed-Why:  
my driver. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=25230 
State-Changed-From-To: feedback->closed 
State-Changed-By: asmodai 
State-Changed-When: Thu Nov 15 11:19:22 PST 2001 
State-Changed-Why:  
No feedback, assume fixes helped person originating PR. 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=25230 
>Unformatted:
