linux-kernel - Re: Domain faults when CONFIG_CPU_SW_DOMAIN

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Message-ID: <20151210162054.GM8644@n2100.arm.linux.org.uk>
Date:	Thu, 10 Dec 2015 16:20:54 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Peter Rosin <peda@...ntia.se>
Cc:	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
	"'linux-arm-kernel@...ts.infradead.org'" 
	<linux-arm-kernel@...ts.infradead.org>,
	"nico@...xnic.net" <nico@...xnic.net>,
	Will Deacon <will.deacon@....com>
Subject: Re: Domain faults when CONFIG_CPU_SW_DOMAIN_PAN is enabled

On Thu, Dec 10, 2015 at 03:29:37PM +0000, Peter Rosin wrote:
> Russell King wrote:
> > On Thu, Dec 03, 2015 at 09:37:51PM +0000, Peter Rosin wrote:
> > > I took both patches for a quick spin (a dozen boots and one hour uptime
> > > after that for each patch) and no incidents. I have not gathered data,
> > > but the crash on boot feels like it's quite a bit above 50% when there
> > > is a problem so this feels good (I used 5 clean reboots when I bisected
> > > and that worked).
> > > 
> > > Reported-by: Peter Rosin <peda@...ntia.se>
> > > Tested-by: Peter Rosin <peda@...ntia.se>
> > > 
> > > (and please don't forget to cc stable)
> > 
> > I've decided to do a more in-depth fix, so that we also solve the issue
> > that when we schedule in these down_read()s, we don't leak the permissive
> > domain register setting into the switched-to context.
> > 
> > Can you test this patch please?  Thanks.
> 
> Still looking good.

Does that mean I can add your reported and tested-by to this latest
patch?

Thanks.

-- 
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