linux-kernel - Re: [PATCH] net: via-velocity.c fix sleep-with-spinlock bug during MTU change

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Message-ID: <485B8542.7060204@e-teleport.net>
Date:	Fri, 20 Jun 2008 12:24:02 +0200
From:	Séguier Régis <rseguier@...eleport.net>
To:	Francois Romieu <romieu@...zoreil.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>, alan@...hat.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: via-velocity.c fix sleep-with-spinlock bug during
 MTU change

Francois Romieu a écrit :
> Séguier Régis <rseguier@...eleport.net> :
>   
>>> I have updated http://userweb.kernel.org/~romieu/via-velocity/2.6.26-rc6/
>>>       
> [...]
>   
>> Patch 0001 doesn't work,
>>
>> if I don't make a mistake skb->len is not modified in skb_pad{,to}when the 
>> padding is applied. In this case, we need to attribute ETH_ZLEN to len.
>>     
>
> Yes, that's what the driver did beforehand.
>
> The updated serie is at the usual place. Does it perform better ?
>
>   
Ok for the mtu change, no error messages, I try multiples mtu 
(1400,2000,4500,9000).

But if I generate a paquet with a size more than around 3825, the driver 
don't send it and no paquet is send after, work again after an interface 
down/up and until no paquet > 3825.

-- 
Régis
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