From nsayer@quack.kfu.com  Mon Jan 20 10:00:41 1997
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Date: Mon, 20 Jan 1997 10:00:37 -0800 (PST)
From: nsayer@quack.kfu.com
Reply-To: nsayer@quack.kfu.com
To: FreeBSD-gnats-submit@freebsd.org
Subject: worm burning suddenly broken
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>Number:         2538
>Category:       kern
>Synopsis:       worm burning suddenly broken
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jan 20 10:10:00 PST 1997
>Closed-Date:    Sun Mar 22 17:57:54 PST 1998
>Last-Modified:  Sun Mar 22 17:58:53 PST 1998
>Originator:     Nick Sayer
>Release:        FreeBSD 2.2-ALPHA i386
>Organization:
just me
>Environment:

ahc0 <Adaptec aic7850 SCSI host adapter> rev 0 int a irq 11 on pci0:18
(ahc0:3:0): "HP C4324/C4325 1.25" type 5 removable SCSI 2
worm0(ahc0:3:0): Write-Once 

>Description:

Something about 2.2-ALPHA seems to have suddenly decided to stop
working.

>How-To-Repeat:

% wormcontrol select HP 4020i
% wormcontrol prepdisk double
% wormcontrol track data
% rtprio 5 team -v 1m 5 < cdr | rtprio 5 dd of=/dev/rworm0 obs=20k
worm0: oops not queued
biodone: buffer already done

At this point the disk is a frizbee.

>Fix:

>Release-Note:
>Audit-Trail:

From: Nick <nsayer@quack.kfu.com>
To: freebsd-gnats-submit@freebsd.org
Cc:  Subject: Re: kern/2538: worm burning suddenly broken
Date: Fri, 21 Mar 1997 19:30:19 -0800

 This continues to happen with 4020i firmware rev 1.27 and
 with 2.2-RELEASE.
 
 However, removing the AHC_TAGENABLE option appears to cure
 it.
State-Changed-From-To: open->closed 
State-Changed-By: steve 
State-Changed-When: Sun Mar 22 17:57:54 PST 1998 
State-Changed-Why:  
Removing tagged queueing fixed the problem. 
>Unformatted:
