[PATCH] ARM: enable imprecise aborts during early kernel startup
Lucas Stach
l.stach at pengutronix.de
Tue Aug 25 05:56:09 PDT 2015
Am Dienstag, den 25.08.2015, 13:40 +0100 schrieb Russell King - ARM
Linux:
> On Tue, Aug 25, 2015 at 01:24:05PM +0200, Lucas Stach wrote:
> > From: Fabrice Gasnier <fabrice.gasnier at st.com>
> >
> > This patch adds imprecise abort enable/disable macros and uses them to
> > enable imprecise aborts early when starting the kernel.
> >
> > This helps in tracking down the real cause for such imprecise abort, as
> > they are handled as soon as they occur. Until now those aborts would
> > only be enabled when entering the userspace and as a consequence crash
> > the first userspace process if any abort had been raised during kernel
> > startup.
> >
> > Signed-off-by: Fabrice Gasnier <fabrice.gasnier at st.com>
> > Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
>
> Looks fine to me. I think as we know Keystone2 definitely has issues
> with this, I'd like to delay it to the v4.4 merge window, but please
> consider putting it in the patch system anyway so it doesn't get
> forgotten about. I'll queue it after 4.3-rc1 is out.
>
That sounds sensible.
Patch is in the system as 8422/1.
Regards,
Lucas
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