netdev - Re: [Bugme-new] [Bug 16626] New: Machine hangs with EIP at skb_copy_and_csum

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Date:	Fri, 20 Aug 2010 11:31:20 +0300
From:	Plamen Petrov <pvp-lsts@...uni-ruse.bg>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>, netdev@...r.kernel.org,
	bugzilla-daemon@...zilla.kernel.org,
	bugme-daemon@...zilla.kernel.org
Subject: Re: [Bugme-new] [Bug 16626] New: Machine hangs with EIP at skb_copy_and_csum_dev

На 20.8.2010 г. 10:38, Plamen Petrov написа:
> На 20.8.2010 г. 09:34, Eric Dumazet написа:
>> > Le vendredi 20 août 2010 à 09:26 +0300, Plamen Petrov a écrit :
>>> >> Posting this only in the hope that it will be helpfull to the
>>> >> "net guys"...
>> >
...
>> >
> But again, this is on 2.6.34.4. Could it be that
> "generic-receive-offload" is ON by default on my
> only gigabit capable tg3 card on 2.6.35.x and later?
>

Well, as it turns out - the commit enabling GRO for
tg3 cards was from the 2.6.35 merge window:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=cb903bf4ee2d6e53210e2174d363e10698112042

> tg3: Enable GRO by default.author	David S. Miller <davem@...emloft.net>	
> 	Wed, 21 Apr 2010 01:49:45 +0000 (18:49 -0700)
> committer	David S. Miller <davem@...emloft.net>	
> 	Wed, 21 Apr 2010 01:49:45 +0000 (18:49 -0700)
>
> This was merely an oversight when I added the *_gro_receive()
> calls.
>
> Signed-off-by: David S. Miller <davem@...emloft.net>

The next thing I will be trying is disabling
GRO for the tg3 network card in my network
startup scripts via my shiny new ethtool... ;)
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