From mboxrd@z Thu Jan  1 00:00:00 1970
From: catalin.marinas@arm.com (Catalin Marinas)
Date: Wed, 17 Jul 2013 20:41:21 +0100
Subject: BUG: commit "ARM: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW on
 pre-ARMv6 CPUs" breaks armv5 with CONFIG_PREEMPT
In-Reply-To: <20130717085139.GJ24642@n2100.arm.linux.org.uk>
References: <51C2D5EF.3040803@pengutronix.de> <20130620102856.GC18536@arm.com>
 <20130620111255.GD18536@arm.com> <51C2E917.9000708@pengutronix.de>
 <51C2EA04.4060701@pengutronix.de> <51C2EBCD.4070206@pengutronix.de>
 <51C42AE0.9070506@pengutronix.de> <20130621135219.GC4099@arm.com>
 <51E658AF.1090009@pengutronix.de>
 <20130717085139.GJ24642@n2100.arm.linux.org.uk>
Message-ID: <20130717194121.GF16496@MacBook-Pro.local>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Wed, Jul 17, 2013 at 09:51:39AM +0100, Russell King - ARM Linux wrote:
> On Wed, Jul 17, 2013 at 10:41:19AM +0200, Marc Kleine-Budde wrote:
> > What happend to that patch? I cannot find it in v3.10.x nor in linus/master.
> 
> Catalin sent it to me, and I didn't apply it because it's still racy.
> 
> We have stateful context switches (due to cache clearing) and this does
> nothing to solve the problem there.  If we get preempted during the
> cache clearing, things will still go wrong.
> 
> See:
> 
> http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=7771/1
> 
> I've no idea what's happening about this.  It looks to me like nothing
> happened after Catalin's last comment there.

Too many other things to do. It's on my list for this week or early next
week.

-- 
Catalin