netdev - Re: mac80211 truesize bugs

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Message-Id: <1209634349.4008.15.camel@johannes.berg>
Date:	Thu, 01 May 2008 11:32:29 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	David Miller <davem@...emloft.net>
Cc:	mb@...sch.de, netdev@...r.kernel.org,
	linux-wireless@...r.kernel.org
Subject: Re: mac80211 truesize bugs

On Thu, 2008-05-01 at 02:20 -0700, David Miller wrote:
> From: Johannes Berg <johannes@...solutions.net>
> Date: Thu, 01 May 2008 11:08:06 +0200
> 
> > > Seems the skb->destructor messes it up.
> > 
> > Actually, it seems to be outside of mac80211, I put in a WARN_ON() and
> > got this:
> 
> You're just seeing who freed it last here.
> 
> It could have had it's ->truesize put into an illegal state
> elsewhere.

Yes, I know, but it doesn't come from my skb_orphan() call. Hence, I
just netif_rx() the packet which makes it go onto the input_pkt_queue
and then to netif_receive_skb() which gives it to af_packet and all
others should ignore it since I set PACKET_OTHERHOST.

johannes

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