kern/144755: [iwi] [panic] iwi panic when issuing /etc/rc.d/netif restart on 8-STABLE r205159

[Bernhard Schmidt]

The following reply was made to PR kern/144755; it has been noted by GNATS.

From: Bernhard Schmidt <bschmidt at techwires.net>
To: Edwin Groothuis <edwin at mavetju.org>, bug-followup at freebsd.org
Cc:  
Subject: Re: kern/144755: [iwi] [panic] iwi panic when issuing /etc/rc.d/netif 
	restart on 8-STABLE r205159
Date: Wed, 28 Jul 2010 12:11:17 +0200

 On Wed, Jul 28, 2010 at 06:00, Edwin Groothuis <edwin at mavetju.org> wrote:
 > The following reply was made to PR kern/144755; it has been noted by GNAT=
 S.
 >
 > From: Edwin Groothuis <edwin at mavetju.org>
 > To: bug-followup at FreeBSD.org
 > Cc:
 > Subject: Re: kern/144755: [iwi] [panic] iwi panic when issuing /etc/rc.d/=
 netif restart on 8-STABLE r205159
 > Date: Wed, 28 Jul 2010 13:33:42 +1000
 >
 > =A0Please note that this issue is still happening on 8.1-STABLE #2 r21052=
 2
 
 
 Can you check if wpa_supplicant gets started twice after
 "/etc/rc.d/netif restart"?
 
 I have the feeling that this is a more or less known issue, a race
 between devd (/etc/pccard_ether) and /etc/rc.d/netif. There is a small
 window (a few ms) where this can happen and our net80211 isn't capable
 of handling two running wpa_supplicants on the same interface. Which
 leads to all kind of weird issues, .e.g. panics.
 
 --=20
 Bernhard