Re: [PATCH v4 2/5] x86, traps: Track entry into and exit from IST context

Tony Luck
2014-12-11T00:22:18Z

On Tue, Nov 25, 2014 at 10:58 AM, Borislav Petkov <bp@alien8.de> wrote:
> On Mon, Nov 24, 2014 at 03:52:10PM -0800, Andy Lutomirski wrote:
>> Dunno. Tony and Borislav -- when do you want the IST stack switching
>> stuff?
>
> I'd leave that up to Tony and his testbench. I mean, we can hammer on
> it as much as we can and it can pass all testing locally but the real
> fun starts once it hits upstream and for that it doesn't matter which
> release... IMHO.

So what was the net result of all the mode/RCU discussions?

Do I need some extra magic incantations in the final version
of do_machine_check() beyond what was in this patch:

https://lkml.kernel.org/r/546d169211835aded@agluck-desk.sc.intel.com

to make everything happy?

-Tony