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From: Johannes Berg <johannes@sipsolutions.net>
To: Joerg Albert <jal2@gmx.de>
Cc: linux-wireless@vger.kernel.org
Subject: Re: ar9170usb crashes during iwconfig for ad-hoc mode
Date: Mon, 03 Aug 2009 16:25:06 +0200	[thread overview]
Message-ID: <1249309506.4561.1.camel@johannes.local> (raw)
In-Reply-To: <20090803123642.242160@gmx.net>

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On Mon, 2009-08-03 at 14:36 +0200, Joerg Albert wrote:
> 
> > On Mon, 2009-08-03 at 10:44 +0200, Johannes Berg wrote:
> > 
> > > > >     ifconfig wlan1 down
> > > > >     iwconfig wlan1 mode managed essid huhu
> > > > >     ifconfig wlan1 up
> > > > >     ifconfig wlan1 down
> > > > >     iwconfig wlan1 mode ad-hoc essid huhu_a channel 1
> > 
> > > No, it's a bug in cfg80211 :)
> > 
> > But it's not making sense to me. I'll have to try to reproduce it. In
> > any case, we shouldn't be calling in to mac80211 from cfg80211 while the
> > interface is down.
> 
> I guess this is caused by the call to __cfg80211_leave_ibss()
> in  net/wireless/ibss.c::cfg80211_ibss_wext_siwfreq() trying to
> disable the beacon via net/mac80211::ieee80211_ibss_leave().

But it only does that if (wdev->ssid_len) which should be false, so I'm
confused.

johannes

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      parent reply	other threads:[~2009-08-03 14:25 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-02 13:23 ar9170usb crashes during iwconfig for ad-hoc mode Joerg Albert
2009-08-02 22:28 ` Joerg Albert
2009-08-03  8:44   ` Johannes Berg
2009-08-03  8:47     ` Johannes Berg
2009-08-03 12:36       ` Joerg Albert
2009-08-03 13:09         ` Christian Lamparter
2009-08-03 20:46           ` Joerg Albert
2009-08-03 14:25         ` Johannes Berg [this message]

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