linux-kernel - Re: Data corruption issue with splice() on 2.6.27.10

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Message-ID: <20090107122731.GA25846@gondor.apana.org.au>
Date:	Wed, 7 Jan 2009 23:27:31 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Evgeniy Polyakov <zbr@...emap.net>
Cc:	Jens Axboe <jens.axboe@...cle.com>, Willy Tarreau <w@....eu>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: Data corruption issue with splice() on 2.6.27.10

On Wed, Jan 07, 2009 at 11:22:38PM +1100, Herbert Xu wrote:
>
> Yes we will linearize the packet in dev_queue_xmit but as soon
> as the netdev stops the tx queue you'll get corruption.

OK that can't happen because the linearisation precedes that, but
ARP (or anything else that delays the skb prior to dev_queue_xmit)
can still cause corruption.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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