netdev - Re: alignment faults in 3.6

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Message-ID: <20121012142254.GG5453@kvack.org>
Date:	Fri, 12 Oct 2012 10:22:54 -0400
From:	Benjamin LaHaise <bcrl@...ck.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Måns Rullgård <mans@...sr.com>,
	Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org,
	David Laight <David.Laight@...lab.com>, netdev@...r.kernel.org,
	Jon Masters <jonathan@...masters.org>
Subject: Re: alignment faults in 3.6

On Fri, Oct 12, 2012 at 02:08:12PM +0200, Eric Dumazet wrote:
> So yes, we built network stack with the prereq that IP headers are
> aligned, but unfortunately many developers use x86 which doesnt care, so
> its possible some bugs are added.

x86 does have an alignment check flag that can be set in the flags register.  
Somehow, I doubt anyone would be willing to walk through all the noise the 
faults would likely trigger.

		-ben
-- 
"Thought is the essence of where you are now."
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