netdev - Re: 3.7.3+: Bad paging request in ip_rcv_finish while running NFS traffic.

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Message-ID: <5101A12F.3040002@candelatech.com>
Date:	Thu, 24 Jan 2013 13:01:35 -0800
From:	Ben Greear <greearb@...delatech.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	netdev <netdev@...r.kernel.org>
Subject: Re: 3.7.3+:  Bad paging request in ip_rcv_finish while running NFS
 traffic.

On 01/24/2013 12:59 PM, Eric Dumazet wrote:
> On Thu, 2013-01-24 at 12:03 -0800, Ben Greear wrote:
>> iately processed (and loopback device is hard wired ?)
>>
>> I have not seen any crashes since this change went into my
>> test bed, so I believe this one is finally fixed!  I'm running
>> with your macvlan fixes as well..and even if they did not
>> fix the problem I saw, they at least appear to cause no harm.
>>
>> If you wish, feel free to add:
>>
>> Tested-By:  Ben Greear <greearb@...delatech.com>
>>
>> Thanks,
>> Ben
>
> Just to make sure, you still have the
>
> WARN_ON_ONCE(skb_dst_is_noref(skb))
>
> in netif_rx() ?
>

I have something similar, and I have not seen any splats:

int netif_rx(struct sk_buff *skb)
{
	int ret;

	WARN_ON(skb->_skb_refdst & SKB_DST_NOREF);

I'll keep this in our kernels so when we do .1q vlans and other
sorts of testing we'll get some more coverage.

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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