From owner-freebsd-bugs  Thu Nov 12 14:26:48 1998
Return-Path: <owner-freebsd-bugs@FreeBSD.ORG>
Received: (from majordom@localhost)
          by hub.freebsd.org (8.8.8/8.8.8) id OAA01267
          for freebsd-bugs-outgoing; Thu, 12 Nov 1998 14:26:48 -0800 (PST)
          (envelope-from owner-freebsd-bugs@FreeBSD.ORG)
Received: from freefall.freebsd.org (freefall.FreeBSD.ORG [204.216.27.21])
          by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id OAA01249
          for <freebsd-bugs@FreeBSD.org>; Thu, 12 Nov 1998 14:26:46 -0800 (PST)
          (envelope-from gnats@FreeBSD.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.8.8/8.8.5) id OAA28823;
	Thu, 12 Nov 1998 14:20:01 -0800 (PST)
Received: (from nobody@localhost)
          by hub.freebsd.org (8.8.8/8.8.8) id OAA29476;
          Thu, 12 Nov 1998 14:11:33 -0800 (PST)
          (envelope-from nobody)
Message-Id: <199811122211.OAA29476@hub.freebsd.org>
Date: Thu, 12 Nov 1998 14:11:33 -0800 (PST)
From: bad@wireless.net
To: freebsd-gnats-submit@FreeBSD.ORG
X-Send-Pr-Version: www-1.0
Subject: kern/8671: sd0->da0 change breaks change of media and MSDOS removeable disks (Zip)
Sender: owner-freebsd-bugs@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.org


>Number:         8671
>Category:       kern
>Synopsis:       sd0->da0 change breaks change of media and MSDOS removeable disks (Zip)
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Nov 12 14:20:00 PST 1998
>Last-Modified:
>Originator:     Bernie Doehner
>Organization:
>Release:        3.0-RELEASE
>Environment:
Not available - non networked machine, can supply if needed.. 

>Description:
Under 3.0-SNAP-19980821 Zip disks (Parallel port, but using SCSI protocol)
worked perfectly with the sd0 device driver.

However, in 3.0-RELEASE the major move from sd0 to {cam}/da0 was made, 
and now MSDOS Zip disks cannot be mounted/format, etc. 

The only access that works is with FFS Zip's, and ONLY if you boot up with
the disk inserted. If one mounts and then unmounts the Zip, removes it from
drive, and plugs in a new zip, the system is incapable of reading the
new disklabel, and subsequently crashes, with the dump stating it was
in {cam} at the time of crash.
>How-To-Repeat:
Compile custom kernel with ppbus, vpo0, scsi controller, and device da0.
Boot up with Zip disk in parallel port zip drive, mount, unmount, 
remove Zip, reinsert.. Subsequently watch system panic.
>Fix:
Temporary fix: Make a config option so that one can use the old sd0 
driver with Parallel port Zip disk, until {cam/da0} properly works
with removeable media.
>Audit-Trail:
>Unformatted:

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message