netdev - Re: VxLAN system wedge in 4.0.0-rc5+ from davem net-next?

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Message-ID: <5522E5F5.7050605@hp.com>
Date:	Mon, 06 Apr 2015 13:00:53 -0700
From:	Rick Jones <rick.jones2@...com>
To:	Marcelo Ricardo Leitner <mleitner@...hat.com>
CC:	netdev@...r.kernel.org
Subject: Re: VxLAN system wedge in 4.0.0-rc5+ from davem net-next?

On 04/06/2015 12:07 PM, Marcelo Ricardo Leitner wrote:
> Hi,
>
> On Fri, Apr 03, 2015 at 05:11:12PM -0700, Rick Jones wrote:
>> Hi -
>>
>> I've been messing about with VxLAN with a pair of two socket systems with
>> ixgbe-driven NICs (HP 560FLRs for the curious) and have noticed that with a
>> kernel from a davem net-next tree I refreshed a couple days ago I can create
>> the vlxan link, and ifconfig it, but once I start trying to push packets
>> through it the system appears to hang and I have to reset it.
>>
>> I went back to checkout v3.19 and tried that kernel and all was happiness
>> and joy.  So, I started down the bisect path, but after the first iteration
>> I ran into:
>
> That means you could send/receive some packets on it before the hang, right?

On v3.19 I could send and receive lots of packets without a hang.  I 
could even run netperf through the vxlan tunnel :)

Now that I've addressed my build issue I'm in the midst of a bisect, but 
if someone has faster git-fu I'll not be disappointed if they are able 
to bisect before me.

rick
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