linux-kernel - Re: BUG: All network processes hang (brcmsmac/wpa

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Message-ID: <20111019123602.GA11883@schottelius.org>
Date:	Wed, 19 Oct 2011 14:36:03 +0200
From:	Nico Schottelius <nico-linux-20111017@...ottelius.org>
To:	Eric Dumazet <eric.dumazet@...il.com>,
	Arend van Spriel <arend@...adcom.com>,
	Nico Schottelius <nico-linux-20111017@...ottelius.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: BUG: All network processes hang (brcmsmac/wpa_supplicant)

Hello,

I've

Eric Dumazet [Tue, Oct 18, 2011 at 02:24:25PM +0200]:
> Must be a mutex_unlock(some_mltex) missing somewhere.
> 
> Then later, a process holding RTNL is blocking on mutex_lock(some_mutex)
> 
> Try a "CONFIG_LOCKDEP=y" enabled build

Did so, attached is the dmesg output after 3x suspend.

It also seems this bug gets more / only triggered when I loose the
connection to a wpa2-eap network that is defined like this:

network={
   ssid="eth"
  id_str="eth-802.2x"
   key_mgmt=WPA-EAP
   proto=WPA2
   eap=TTLS
   pairwise=CCMP TKIP
   group=CCMP TKIP
   phase2="auth=MSCHAPV2"
   identity="MYNAME"
   password="forgottoremoveit"
}

Hope the dmesg output helps and we can remove the problem soon
and making the mba finally almost completly usable :-)

Cheers,

Nico

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