netdev - RE: alignment faults in 3.6

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Message-ID: <AE90C24D6B3A694183C094C60CF0A2F6026B703F@saturn3.aculab.com>
Date:	Fri, 12 Oct 2012 15:36:13 +0100
From:	"David Laight" <David.Laight@...LAB.COM>
To:	"Benjamin LaHaise" <bcrl@...ck.org>,
	"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>, <netdev@...r.kernel.org>,
	"Jon Masters" <jonathan@...masters.org>
Subject: RE: alignment faults in 3.6

> 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.

Someone has tried to set that (in userspace) on NetBSD.
The fault reporting has been fixed, but really nothing
works since optimised parts of libc deliberately do
misaligned transfers.

	David



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