kern/148688: [geom][panic] panic when committing undone partitioning with BSD slice

[Bruce Cran]

>Number:         148688
>Category:       kern
>Synopsis:       [geom][panic] panic when committing undone partitioning with BSD slice
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jul 16 18:20:06 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Bruce Cran
>Release:        FreeBSD 9.0-HEAD-20100715-JPSNAP amd64
>Organization:
>Environment:
System: FreeBSD bsdbook.nessbank 9.0-HEAD-20100715-JPSNAP FreeBSD 9.0-HEAD-20100715-JPSNAP #0: Thu Jul 15 06:37:19 UTC 2010 root at build-amd64-fbsd.allbsd.org:/usr/obj/usr/src/sys/GENERIC amd64


	
>Description:
When attemting to commit a partition table which has been created with a BSD 
slice and then undone, the kernel panics in g_part_ctl_commit.
>How-To-Repeat:
gpart create -s mbr -f x da0
gpart add -t freebsd -f x da0
gpart create -s bsd -f x da0s1
gpart undo da0
gpart commit da0
>Fix:

	


>Release-Note:
>Audit-Trail:
>Unformatted: