kern/110561: :"em" driver shuts down interface when "ifconfig media 100baseTX" is invoked

[Bruce Becker]

>Number:         110561
>Category:       kern
>Synopsis:       :"em" driver shuts down interface when "ifconfig  media 100baseTX"  is invoked
>Confidential:   no
>Severity:       critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Mar 20 06:00:09 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Bruce Becker
>Release:        6.2 i386
>Organization:
G.T.S.
>Environment:
FreeBSD cg-gw 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #10: Tue Jan 16 01:40:27 EST 2007     root at taint:/usr/obj/usr/src/sys/FW-YQ  i386

>Description:
I did:
ifconfig em2 media 100baseTX mediaopt full-duplex

ifconfig em2 now reports:
..
media: Ethernet 100baseTX <full-duplex> (autoselect)
status: no carrier
>How-To-Repeat:
do the above
>Fix:
"ifconfig media autoselect" brings the interface active again
 but the ability to set specific media/mediaopt is what is required


"ifconfig em2 media 100baseTX" also shuts the interface down
>Release-Note:
>Audit-Trail:
>Unformatted: