Subject: Re: [BUG] Current head of wireless testing unusable
From: Marcel Holtmann <marcel@holtmann.org>
To: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Pavel Roskin <proski@gnu.org>,
	linux-wireless <linux-wireless@vger.kernel.org>,
	iwlwifi maling list <ipw3945-devel@lists.sourceforge.net>
In-Reply-To: <1248562407.7314.1.camel@maxim-laptop>
References: <1248531054.15242.16.camel@maxim-laptop>
	 <1248558755.11389.21.camel@mj>  <1248561109.4753.9.camel@maxim-laptop>
	 <1248562407.7314.1.camel@maxim-laptop>
Content-Type: text/plain
Date: Sun, 26 Jul 2009 07:25:28 +0200
Message-Id: <1248585928.28545.166.camel@violet>
Mime-Version: 1.0
Sender: linux-wireless-owner@vger.kernel.org

Hi Maxim,

> > > > I probably should work more to did these bugs out myself, but anyway I
> > > > want to let you know what I currently see.
> > > > 
> > > > First system oopses just after NM starts up, happens always, and after
> > > > planting few test points bug happens somewhere in following lines. 
> > > 
> > > We are discussing a bug in the scan state machine in another thread,
> > > which could have nasty consequences in not caught.  And I don't quite
> > > understand why my system was catching it immediately, maybe because I'm
> > > using gcc 4.4, which has array bounds checking.
> > Yea, there are two patches with same title for this, I applied the
> > newer.
> > 
> > Currently thanks to Johannes Berg, the patch
> > [PATCH] nl80211: add missing parameter clearing
> > Fixes this nasty oops, now wireless more or less works, but plenty of
> > problems still, first it oopses on reconnect as inilialized from
> > wpa_supplicant, second iwconfig misses most of its settings, and
> > probably thus NM think signal level is zero. If I switch to good old
> > wext in wpa_supplicant, it works just fine and none of above problems
> > present (I recheck this again to be sure)
> Except very frequent reconnects, 
> "[  919.250097] No probe response from AP 00:1b:9e:d8:77:02 after 200ms, disconnecting."

I have the same issue with my Intel 5350 card and if the signal strength
of the AP gets a little bit weaker.

Regards

Marcel