Re: [PATCH 4/4] x86, mce: Have MCE persistent event off by default for now

[Ingo Molnar <mingo@elte.hu>]

* Borislav Petkov <bp@amd64.org> wrote:

> From: Borislav Petkov <borislav.petkov@amd.com>
> 
> This is new functionality and it affects all of x86 so we want to be
> very conservative about it and have it off by default for now, in case
> something goes awry. You can always enable it by supplying "ras" on the
> kernel command line.
> 
> Also, depending on whether it is enabled or not, we emit the tracepoint
> from a different place in the code to pick up additional decoded info.
> 
> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
> ---
>  Documentation/kernel-parameters.txt |    2 ++
>  arch/x86/include/asm/mce.h          |    1 +
>  arch/x86/kernel/cpu/mcheck/mce.c    |   32 ++++++++++++++++++++++++++++++--
>  drivers/edac/mce_amd.c              |    5 +++++
>  4 files changed, 38 insertions(+), 2 deletions(-)

the boot flag is fine - but please keep it enabled by default if MCE support is 
enabled in the .config, we do not chicken out when it comes to testing new 
code! :-)

Thanks,

	Ingo