Date: Sun, 25 Apr 2010 14:42:25 +0200 From: Bernhard Schmidt <bschmidt@techwires.net> To: Garrett Cooper <yanefbsd@gmail.com> Cc: Brandon Gooch <jamesbrandongooch@gmail.com>, Olivier =?iso-8859-1?Q?Cochard-Labb=E9?= <olivier@cochard.me>, freebsd-stable@freebsd.org, Andrew Thompson <thompsa@FreeBSD.org> Subject: Re: iwn firmware instability with an up-to-date stable kernel Message-ID: <20100425124224.GA84870@mx.techwires.net> In-Reply-To: <i2i7d6fde3d1004241824n2aa2046br228b7bae1b250509@mail.gmail.com> References: <r2u7d6fde3d1004231932rea2235a1r2dcd8f1973fcb1b4@mail.gmail.com> <s2m179b97fb1004232005geee6fbb6q9776a119f5b477db@mail.gmail.com> <u2v7d6fde3d1004232142yb2037851ne906f38ccc8039e9@mail.gmail.com> <y2p7d6fde3d1004232159hcc0c02bcpb6ee0910d76672a7@mail.gmail.com> <i2h179b97fb1004232208za4b1dbbekef363ec0fa522e0@mail.gmail.com> <l2z7d6fde3d1004232327heb8a744alfa02b81f199876ff@mail.gmail.com> <20100424073430.GB62910@mx.techwires.net> <g2t7d6fde3d1004240045kde5f4bbds62be7920d94e57d@mail.gmail.com> <20100424075031.GA98660@mx.techwires.net> <i2i7d6fde3d1004241824n2aa2046br228b7bae1b250509@mail.gmail.com>
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On Sat, Apr 24, 2010 at 06:24:42PM -0700, Garrett Cooper wrote:
> On Sat, Apr 24, 2010 at 12:50 AM, Bernhard Schmidt
> <bschmidt@techwires.net> wrote:
> > On Sat, Apr 24, 2010 at 12:45:14AM -0700, Garrett Cooper wrote:
> >> On Sat, Apr 24, 2010 at 12:34 AM, Bernhard Schmidt
> >> <bschmidt@techwires.net> wrote:
> >> >
> >> > How did you do that? Reloading the module, or with ifconfig?
> >>
> >> /etc/rc.d/netif restart , which does the ifconfig operations (no
> >> module change occurred AFAIK, but wlan0 did of course do some
> >> device_printf's when it was associating itself with iwn(4)).
> >
> > Can you do ps xa | grep wpa? Just wondering if wpa_supplicant gets
> > started twice.
>
> Some more interesting data.
>
> Open authentication at home works out of the box via wpa_supplicant
> with ifconfig_wlan0="WPA DHCP" whereas it flaked out and died at work.
>
> There are two instances of wpa_supplicant started up on the laptop.
> Here's a snippet from pstree that shows that both processes are
> standalone:
>
> -+= 00001 root /sbin/init --
> |--= 00121 root adjkerntz -i
> |--= 00559 root /sbin/devd
> |--= 00711 root /usr/sbin/syslogd -s
> |--= 00735 root /usr/sbin/rpcbind
> |--= 00879 root /usr/sbin/moused -p /dev/psm0 -t auto
> |--= 00903 messagebus /usr/local/bin/dbus-daemon --system
> |--= 01073 root /usr/sbin/sshd
> |--= 01081 root sendmail: accepting connections (sendmail)
> |--= 01085 smmsp sendmail: Queue runner@00:30:00 for
> /var/spool/clientmqueue (sendmail)
> |--= 01093 root /usr/sbin/cron -s
> |-+= 01176 haldaemon /usr/local/sbin/hald
> | \-+- 01180 root hald-runner
> | |--- 01185 root hald-addon-mouse-sysmouse: /dev/psm0 (hald-addon-mouse-sy)
> | \--- 01205 root hald-addon-storage: /dev/acd0 (hald-addon-storage)
> |--= 01179 root /usr/local/sbin/console-kit-daemon
> |--= 01727 root /usr/sbin/wpa_supplicant -s -B -i wlan0 -c
> /etc/wpa_supplicant.conf -D bsd -P /var/run/wpa_supplicant/wlan0.pid
> |--= 01783 root /usr/sbin/wpa_supplicant -s -B -i wlan0 -c
> /etc/wpa_supplicant.conf -D bsd -P /var/run/wpa_supplicant/wlan0.pid
> |--= 01866 root dhclient: wlan0 [priv] (dhclient)
> |--= 01902 _dhcp dhclient: wlan0 (dhclient)
Indeed, devd is responsible for that, removing
notify 0 {
match "system" "IFNET";
match "type" "ATTACH";
action "/etc/pccard_ether $subsystem start";
};
from devd.conf prevents a seconds call to rc.d/netif and therefore
rc.d/wpa_supplicant. This breaks the intended purpose though.
Can we somehow prevent this by checking the pidfile in
rc.d/wpa_supplicant?
--
Bernhard
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