From mato@Pod-Palmou.drp.fmph.uniba.sk  Fri Oct  4 09:15:42 1996
Received: from Pod-Palmou.drp.fmph.uniba.sk (Pod-Palmou.drp.fmph.uniba.sk [158.195.19.11])
          by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id JAA26549
          for <FreeBSD-gnats-submit@freebsd.org>; Fri, 4 Oct 1996 09:15:25 -0700 (PDT)
Received: (from mato@localhost) by Pod-Palmou.drp.fmph.uniba.sk (8.7.6/8.7.3) id SAA06488; Fri, 4 Oct 1996 18:11:13 +0200 (MET DST)
Message-Id: <199610041611.SAA06488@Pod-Palmou.drp.fmph.uniba.sk>
Date: Fri, 4 Oct 1996 18:11:13 +0200 (MET DST)
From: Martin Lucina <mato@Pod-Palmou.drp.fmph.uniba.sk>
Reply-To: Martin Lucina <mato@drp.fmph.uniba.sk.fmph.uniba.sk>
To: FreeBSD-gnats-submit@freebsd.org
Subject: kernel fault when doing scsi reprobe
X-Send-Pr-Version: 3.2

>Number:         1723
>Category:       kern
>Synopsis:       kernel fault when doing scsi reprobe
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    gibbs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Oct  4 09:20:03 PDT 1996
>Closed-Date:    Mon Nov 2 11:50:17 PST 1998
>Last-Modified:  Mon Nov  2 11:50:49 PST 1998
>Originator:     Martin Lucina <mato@drp.fmph.uniba.sk>
>Release:        FreeBSD 2.1-STABLE i386
>Organization:
Comenius University, Bratislava, Slovakia
>Environment:

1 Adaptec AHA-1542B ISA SCSI Controller
Maxtor 7120SCS 120 MB Disk (ID 0 LUN 0)
Seagate ST296N 80 MB Disk (ID 1 LUN 0)

>Description:

When turning on the Seagate disk (which is in an external box) AFTER booting
FreeBSD and doing a SCSI reprobe via the /sbin/scsi utility, the kernel will
find the newly-turned-on device, record this in the system log and about 1-2s
later crash with a kernel fault while in supervisor mode - no page present.

>How-To-Repeat:

Turn on a external SCSI device WHILE THE OS IS UP and try:
# scsi -f /dev/sd0 -r

>Fix:
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: gnats-admin->freebsd-bugs 
Responsible-Changed-By: fenner 
Responsible-Changed-When: Fri Nov 29 13:58:24 PST 1996 
Responsible-Changed-Why:  
Fix up misfiled PR 
Responsible-Changed-From-To: freebsd-bugs->gibbs 
Responsible-Changed-By: mpp 
Responsible-Changed-When: Fri Feb 21 17:22:28 PST 1997 
Responsible-Changed-Why:  
Mail to the originator bounces, but this is a scsi 
problem, and someone should look at it once before closing it. 
State-Changed-From-To: open->closed 
State-Changed-By: gibbs 
State-Changed-When: Mon Nov 2 11:50:17 PST 1998 
State-Changed-Why:  
SCSI bus reprobes are implemented correctly in the CAM SCSI layer of 3.0R. 
>Unformatted:
