linux-kernel - Re: [BUG] 2.6.29-rc* QinQ vlan trunking regression

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Message-ID: <20090305045442.GF5959@jukie.net>
Date:	Wed, 4 Mar 2009 23:54:42 -0500
From:	Bart Trojanowski <bart@...ie.net>
To:	David Miller <davem@...emloft.net>
Cc:	kaber@...sh.net, greearb@...delatech.com, shemminger@...tta.com,
	dada1@...mosbay.com, frank.blaschka@...ibm.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [BUG] 2.6.29-rc* QinQ vlan trunking regression

David,

* David Miller <davem@...emloft.net> [090304 22:53]:
> vlan: Fix vlan-in-vlan crashes.
> 
> As analyzed by Patrick McHardy, vlan needs to reset it's
> netdev_ops pointer in it's ->init() function but this
> leaves the compat method pointers stale.
> 
> Add a netdev_resync_ops() and call it from the vlan code.
<snip>
>  include/linux/netdevice.h |    1 +
>  net/8021q/vlan_dev.c      |    1 +
>  net/core/dev.c            |   54 +++++++++++++++++++++++++++-----------------
>  3 files changed, 35 insertions(+), 21 deletions(-)

I tried this patch onto v2.6.29-rc7-3-g559595a, but I still get a crash.
I assume that this worked for you, so I am not putting much faith in my
results at this late hour.  I'll confirm tomorrow morning that it's not
something else.

Cheers,
-Bart

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