From mboxrd@z Thu Jan 1 00:00:00 1970 From: nicolas.pitre@linaro.org (Nicolas Pitre) Date: Tue, 26 Jul 2011 17:51:47 -0400 (EDT) Subject: [PATCH v2] ARM: alignment: Prevent ignoring of faults with ARMv6 unaligned access model In-Reply-To: <20110726213522.GI1655@n2100.arm.linux.org.uk> References: <1311689651-7372-1-git-send-email-dave.martin@linaro.org> <20110726213522.GI1655@n2100.arm.linux.org.uk> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, 26 Jul 2011, Russell King - ARM Linux wrote: > On Tue, Jul 26, 2011 at 05:28:57PM -0400, Nicolas Pitre wrote: > > Why not clearing the U bit as well as the A bit to preserve consistency > > with the pre ARMv6 behavior? > > Because some CPUs have the U bit forced to 1. IOW, it's not possible to > disable it. Oh well... Nicolas