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

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Message-ID: <20100107185040.GB3208@del.dom.local>
Date:	Thu, 7 Jan 2010 19:50:40 +0100
From:	Jarek Poplawski <jarkao2@...il.com>
To:	Michael Breuer <mbreuer@...jas.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 Thu, Jan 07, 2010 at 01:43:08PM -0500, Michael Breuer wrote:
> 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.

If MMAP then some "alternative" too. But first no MMAP.

Jarek P.
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