misc/58373: ufs inconsistency between 4.9-RC and 5.1

[Dan Strick]

>Number:         58373
>Category:       misc
>Synopsis:       ufs inconsistency between 4.9-RC and 5.1
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Oct 22 03:40:20 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator:     Dan Strick
>Release:        FreeBSD 4.9-RCx/5.1 i386
>Organization:
>Environment:
System: FreeBSD mist 4.9-RC3 FreeBSD 4.9-RC3 #1: Sun Oct 19 04:43:45 PDT 2003 root at mist:/usr/src/sys/compile/MIST i386

>Description:
	If you fsck a file system on either a 4.9-RCx OS or on a 5.1 OS
	and then fsck the same file system on the other, the second fsck
	complains that the superblock contains incorrect summary data.
	(Obviously the UFS file system must be type 1.)
	Since the problem seems only to be in the summary data, this
	is probably not a critical-problem.

>How-To-Repeat:
	I happen to have multiple FreeBSD operating systems installed on
	the same computer.  This might also be an issue if you move an
	external disk between computers.  I don't know if the problem shows
	up on all file systems.  It seems to happen on all the half dozen
	or so of the file systems that my 4.9-RCx and 5.1 systems share.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: