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Date:      Fri, 01 Nov 2013 22:00:04 +0200
From:      clutton <clutton@zoho.com>
To:        freebsd-wireless@freebsd.org
Subject:   Re: service netif restart [iface] runs a wpa_supplicant twice
Message-ID:  <1383336004.13657.18.camel@eva02.mbsd>
In-Reply-To: <CAJ-VmonRPHaYAKTm8V5Rj2Uc_ONqbTu2wxZrTM%2Buwpkc7RpLTg@mail.gmail.com>
References:  <1382572583.1862.39.camel@eva02.mbsd> <CAJ-VmonD%2B0rEAYm0Zk5HviciJEngTQ2j5xcKPzuNXBH8CWNA7g@mail.gmail.com> <1382589020.1846.36.camel@eva02.mbsd> <CAJ-Vmok=-bWq-eohdJt%2BwcTrJ43cak_sQu_hxO%2Bzt7HauGgg5g@mail.gmail.com> <1383331203.12614.1.camel@eva02.mbsd> <CAAgh0_aq7Mw-4JA6sEa2MoaqjivSNTKkRnfJwuct%2B=v-o4U2kg@mail.gmail.com> <CAJ-VmonRPHaYAKTm8V5Rj2Uc_ONqbTu2wxZrTM%2Buwpkc7RpLTg@mail.gmail.com>

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On Fri, 2013-11-01 at 12:33 -0700, Adrian Chadd wrote:
> On 1 November 2013 12:16, Bernhard Schmidt <bschmidt@techwires.net> wrote=
:
>=20
> > That actually is a design question I once wrapped my head around
> > unsuccessfully. The lines above are responsible for configuring wlan0
> > if it is created, eg.
> > ifconfig wlan0 destroy
> > ifconfig wlan0 create wlandev ath0
> > will invoke above code which will then invoke pccard_ether. Changing
> > the code as you intent to will prevent this.
> >
> > Someone should step up an decide what is supposed to happen, should
> > wlan0 in that case be configured as stated in rc.conf, or not?
> >
> > The actual issue though, is in wpa_supplicant itself. It has code to
> > prevent it being started twice, but that doesn't kick in because the
> > instances are started to fast and we loose (have not yet setup enough)
> > information in our net code.
>=20
> Uhm, I'm confused by this. Would you mind explaining it in a bit more det=
ail?
>=20
>=20
> -a

The devd runs a pccard_ether script when the IFNET interface appears.
In some rare cases you can see two copies of the wpa_sopplicant.

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