[Yakkety] [PATCH] UBUNTU: [Config] CONFIG_ARM64_ERRATUM_845719=y

Seth Forshee seth.forshee at canonical.com
Tue Dec 6 16:47:56 UTC 2016


On Tue, Dec 06, 2016 at 04:42:48PM +0000, Colin Ian King wrote:
> On 06/12/16 16:37, Ming Lei wrote:
> > Looks this option is missed in Yakkety, and should be
> > enabled always.
> > 
> > Signed-off-by: Ming Lei <ming.lei at canonical.com>
> > ---
> >  debian.master/config/config.common.ubuntu | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/debian.master/config/config.common.ubuntu b/debian.master/config/config.common.ubuntu
> > index aaba225..26ddbf7 100644
> > --- a/debian.master/config/config.common.ubuntu
> > +++ b/debian.master/config/config.common.ubuntu
> > @@ -505,7 +505,7 @@ CONFIG_ARM64_ERRATUM_826319=y
> >  CONFIG_ARM64_ERRATUM_827319=y
> >  CONFIG_ARM64_ERRATUM_832075=y
> >  CONFIG_ARM64_ERRATUM_834220=y
> > -# CONFIG_ARM64_ERRATUM_843419 is not set
> > +CONFIG_ARM64_ERRATUM_843419=y
> >  CONFIG_ARM64_ERRATUM_845719=y
> >  CONFIG_ARM64_HW_AFDBM=y
> >  # CONFIG_ARM64_LSE_ATOMICS is not set
> > 
> This is enabled for Xenial and not Yakkety (I wonder why the config
> enforcer is not picking this up...)
> 
> There is no bug number in this patch, can that be included?  Also
> reference to "Cortex-A53: 845719: a load might read incorrect data"
> maybe of use in the patch as it informs us what CPU issue it works around.

Some config options got mistakenly changed in yakkety, especially for
non-x86 architectures. Only options marked as ENFORCED in the
annotations file are enforced.

So the patch probably should also mark this option as enforced. It will
also be needed in zesty.

Seth




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