Re: Boot failure when using NFS on OMAP based evms

From	Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Newsgroups	linux.kernel
Subject	Re: Boot failure when using NFS on OMAP based evms
Date	2016-04-07 18:00 +0200
Message-ID	<rlkvE-692-23@gated-at.bofh.it> (permalink)
References	<rl4TU-2ZV-17@gated-at.bofh.it> <rl7RL-5jp-5@gated-at.bofh.it> <rljgf-5hz-31@gated-at.bofh.it> <rljpT-5mp-7@gated-at.bofh.it>
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>>>> Currently linux-next is failing to boot via NFS on my AM335x GP evm,
>>>> AM437x GP evm and Beagle X15. I bisected the problem down to the commit
>>>> "udp: remove headers from UDP packets before queueing".
>>>
>>> Thanks for the report, and apologies for breaking your configuration.
>>> I had missed that sunrpc can dequeue skbs from a udp receive
>>> queue and makes assumptions about the layout of those packets. rxrpc
>>> does the same. From what I can tell so far, those are the only two
>>> protocols that do this. I have verified that the following fixes rxrpc for me
>>>
>>
>> Thank you for your quick response. I verified with all of the above
>> suggested changes that NFS works again on my 3 evms.
>
> Thanks a lot for testing, Franklin. I will send out the two patches.

Patches sent to netdev. I'll do another scan to verify that there are
no additional protocols that dequeue skbs from udp receive queues
and expect udp headers present.

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Thread

Boot failure when using NFS on OMAP based evms "Franklin S Cooper Jr." <fcooper@ti.com> - 2016-04-07 01:20 +0200
  Re: Boot failure when using NFS on OMAP based evms Willem de Bruijn <willemdebruijn.kernel@gmail.com> - 2016-04-07 04:30 +0200
    Re: Boot failure when using NFS on OMAP based evms "Franklin S Cooper Jr." <fcooper@ti.com> - 2016-04-07 16:40 +0200
      Re: Boot failure when using NFS on OMAP based evms Willem de Bruijn <willemb@google.com> - 2016-04-07 16:50 +0200
        Re: Boot failure when using NFS on OMAP based evms Willem de Bruijn <willemdebruijn.kernel@gmail.com> - 2016-04-07 18:00 +0200

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