kern/81758: gconcat(8) creating additional providers on consumer detach+attach.

[trasz]

>Number:         81758
>Category:       kern
>Synopsis:       gconcat(8) creating additional providers on consumer detach+attach.
>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 Jun 01 10:40:01 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     trasz
>Release:        5.4
>Organization:
>Environment:
FreeBSD traszkan.ds7 5.4-RELEASE FreeBSD 5.4-RELEASE #2: Wed May 11 19:24:26 CEST 2005     trasz at traszkan.ds7:/usr/obj/usr/src/sys/TRASHCAN  i386

>Description:
      if you detach a provider (mdconfig -du some-file, for example) that gconcat is using, and then attach it again, gconcat will come back up properly, but with additional (second, then third etc) provider, identical to the first one, visible in gconcat list.

>How-To-Repeat:
      
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted: