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Date: Thu, 12 Nov 1998 07:51:03 +0800 (IS)
From: Alexandr Murin <maw@iaia.irk.ru>
Reply-To: maw@iaia.irk.ru
To: FreeBSD-gnats-submit@freebsd.org
Subject: Umount trouble of SCSI removable device
X-Send-Pr-Version: 3.2

>Number:         8655
>Category:       kern
>Synopsis:       Umount trouble of SCSI removable device
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Nov 11 16:10:00 PST 1998
>Closed-Date:    Thu Jul 19 13:58:55 PDT 2001
>Last-Modified:  Thu Jul 19 14:00:12 PDT 2001
>Originator:     Alexandr Murin
>Release:        FreeBSD 3.0-19980804-SNAP i386
>Organization:
JSC "Irkutsk Aviation Industrial Association"
>Environment:

	i133/32Mb RAM with SCSI AHA1540 on ISA bus

>Description:

	If I do:
	    1. umount /dev/od
	    2. fsck /dev/od0s1
	    3. Remove Optic Media
	    4. Insert Optic Media
	    5. mount /dev/ods1
	all ok.
	
	If I do this except (2) - I can't do (5). 
	Reason founded by fsck /dev/od0s1:
	"CLEAN FLAG NOT SET IN SUPERBLOCK"
	
	It is look like umount don't flush SCSI cash.

	If I do umount device with UFS, remove it, insert media with
	VFAT, try mount it - I get "System Panic" message and finally
	automatic reboot.

>How-To-Repeat:

	This repeat as often as I do Remove/Insert media.

>Fix:
	
	Try to run "fsck device" after dismount device, but this not good way.
	In 3.0-SNAP199802xx this trouble is not appeared.


>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback 
State-Changed-By: mike 
State-Changed-When: Thu Jul 19 13:50:28 PDT 2001 
State-Changed-Why:  

Does this problem still occur in newer versions of FreeBSD, 
such as 4.3-RELEASE? 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=8655 
State-Changed-From-To: feedback->closed 
State-Changed-By: mike 
State-Changed-When: Thu Jul 19 13:58:55 PDT 2001 
State-Changed-Why:  

E-mail sent to the originator bounces. 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=8655 
>Unformatted:
