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Date: Wed, 20 Sep 2006 19:40:27 GMT
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To: freebsd-bugs@FreeBSD.org
From: Brooks Davis <brooks@one-eyed-alien.net>
Cc: 
Subject: Re: conf/103428: devd(8): devd brings up network interfaces early
	and wrong
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The following reply was made to PR conf/103428; it has been noted by GNATS.

From: Brooks Davis <brooks@one-eyed-alien.net>
To: Rob Austein <sra@hactrn.net>
Cc: freebsd-gnats-submit@freebsd.org
Subject: Re: conf/103428: devd(8): devd brings up network interfaces early and wrong
Date: Wed, 20 Sep 2006 14:38:47 -0500

 I'm a bit confused by this one.  It's true devd now starts earlier and
 could start before network_ipv6, but it starts after netif and you
 have an IPv4 address configured so it should be up by the time devd
 starts up.  One possible issue is that the current check is bypased if
 grep isn't available (say if /usr is an nfs mount).  If that's the case
 for you, the following patch may fix things.
 
 The other thing I can think of is that there's a delay in the interface
 transitioning to the UP state.  If that's the case I'm not sure what
 the answer is.  We might need to use something else to de-bounce
 the interface configuration.  It might be worth a try to modify
 etc/rc.d/devd to run after network_ipv6.
 
 -- Brooks
 
 Index: pccard_ether
 ===================================================================
 RCS file: /home/ncvs/src/etc/pccard_ether,v
 retrieving revision 1.50
 diff -u -p -r1.50 pccard_ether
 --- pccard_ether	18 Aug 2006 13:19:45 -0000	1.50
 +++ pccard_ether	20 Sep 2006 19:34:13 -0000
 @@ -69,11 +69,13 @@ pccard_ether_start()
  {
  	ifexists $ifn || exit 1
  
 -	if [ -z "$rc_force" -a -x /usr/bin/grep ]; then
 -		if ifconfig $ifn | grep -s '[<,]UP[,>]' > /dev/null 2>&1; then
 -		    # Interface is already up, so ignore it.
 -		    exit 0
 -		fi
 +	if [ -z "$rc_force" ]; then
 +		for uif in `ifconfig -ul`; do
 +			if [ "${uif}" = "${ifn}" ]; then
 +				# Interface is already up, so ignore it.
 +				exit 0
 +			fi
 +		done
  	fi
  
  	/etc/rc.d/netif start $ifn