linux-kernel - Re: [PATCH] af_packet: Don't use skb after dev_queue

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Message-id: <4B462B3C.90506@majjas.com>
Date:	Thu, 07 Jan 2010 13:43:08 -0500
From:	Michael Breuer <mbreuer@...jas.com>
To:	Jarek Poplawski <jarkao2@...il.com>
Cc:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	David Miller <davem@...emloft.net>, akpm@...ux-foundation.org,
	flyboy@...il.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit()

On 1/7/2010 1:35 PM, Jarek Poplawski wrote:
> On Thu, Jan 07, 2010 at 01:19:41PM -0500, Michael Breuer wrote:
>    
>> On 1/7/2010 1:01 PM, Jarek Poplawski wrote:
>>      
>>> On Thu, Jan 07, 2010 at 10:05:37AM -0500, Michael Breuer wrote:
>>>        
>>>> Bad news - crashed about an hour after I wrote this email - under
>>>> load - same crash as before. Network watchdog... lots of attempts to
>>>> reset the adapter... then hw watchdog rebooted the system.
>>>>          
>>> It's a pity. Anyway, I'd be still interested in CONFIG_PACKET_MMAP off
>>> if you find time.
>>>
>>> Jarek P.
>>>        
>> Ok - any particular patch set to try with? I'm going to start with a
>> clean tree using the latest 2.6.32 from git (tried 2.6.33-rc3, but
>> can't get a usable console... will look at that later.)
>>      
> My "Berck E. Nash" and Stephen's "pskb_may_pull" sky2 patches. (BTW,
> could you remind if it worked any better with 2.6.31 or earlier?)
>
> Jarek P.
>    
I'm not sure my crash-and-burn runs yesterday included the pskb_may_pull 
patch :(

Going to rerun with these patches and with and without MMAP. Will also 
retry both with jumbo frames if possible.
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