Re: [PATCH 10/19] x86/dumpstack: add get_stack_info() interface

[Steven Rostedt]

On Tue, 26 Jul 2016 17:24:54 -0500
Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote:

> > This should be impossible unless that last entry is MCE.  If we
> > actually fire an event that isn't MCE early in NMI entry, something
> > already went very wrong.  
> 
> So we don't need to support breakpoints in the early NMI entry code?

Yes, if that happens, then bad things can really happen.

The only way a breakpoint could be added there, is perhaps with KGDB,
and that's just asking for trouble anyway.

-- Steve