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Subject: Re: [PATCH] mac80211: provide race-free 64-bit traffic counters
From: Johannes Berg <johannes@sipsolutions.net>
To: Karl Beldan <karl.beldan@gmail.com>
Cc: linux-wireless@vger.kernel.org, greearb@candelatech.com
Date: Thu, 07 Mar 2013 14:04:34 +0100
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On Thu, 2013-03-07 at 13:55 +0100, Karl Beldan wrote:

> > --- a/net/mac80211/tx.c
> > +++ b/net/mac80211/tx.c
> > @@ -991,14 +991,15 @@ static ieee80211_tx_result debug_noinline
> >  ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
> >  {
> >  	struct sk_buff *skb;
> > +	int ac = skb_get_queue_mapping(tx->skb);
> >  
> Here, ieee80211_tx_h_fragmentm has set tx->skb to NULL and this oopses.

Yeah .. I was just debugging the same thing. Ouch.

johannes