netdev - Re: [PATCH] tcp: splice: fix an infinite loop in tcp_read

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Message-ID: <1357859155.27446.2768.camel@edumazet-glaptop>
Date:	Thu, 10 Jan 2013 15:05:55 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Willy Tarreau <w@....eu>
Cc:	David Miller <davem@...emloft.net>, netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH] tcp: splice: fix an infinite loop in tcp_read_sock()

On Fri, 2013-01-11 at 00:01 +0100, Willy Tarreau wrote:
> Hi Eric,

> Thanks for catching this one. I'm amazed we didn't notice it earlier,
> I've been running my stress-test kernels with this patch applied since
> we did it.
> 

Thats because you splice(    very_large_amount_of_bytes), so you dont
hit this bug.

netperf does the splice (    exact_amount_of_bytes ) so hits this pretty
fast on loopback at least.

Thanks !


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