netdev - Re: PANIC in vxlan <debugging now>

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Message-ID: <CAHA+R7N-FbNVSY-fjObfSrzc3UFMdAT-h-TPnX09EuA4R79U0g@mail.gmail.com>
Date:	Thu, 16 Jan 2014 19:47:43 -0800
From:	Cong Wang <cwang@...pensource.com>
To:	Jesse Brandeburg <jesse.brandeburg@...el.com>
Cc:	netdev <netdev@...r.kernel.org>,
	Daniel Borkmann <dborkman@...hat.com>
Subject: Re: PANIC in vxlan <debugging now>

On Thu, Jan 16, 2014 at 6:03 PM, Jesse Brandeburg
<jesse.brandeburg@...el.com> wrote:
>
> It appears that the bug is in acaf4e70997f (net: vxlan: when lower dev
> unregisters remove vxlan dev as well).
>
> reverting that patch avoids the panic.  I wasn't able to see
> immediately what was wrong in the patch.

It seems vxlan pernet ops is run after loopback register.

Please try the attached (totally untested) patch?

View attachment "vxlan.diff" of type "text/plain" (2002 bytes)