Re: [RFC][PATCH 1/2] x86: Allow breakpoints to emulate call functions

[Linus Torvalds]

On Mon, May 6, 2019 at 10:06 AM Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
>
> Can you try booting with:
> [ snip snip ]
>
> And see if it boots?

No it doesn't.

Dang, I tried to figure out what's up, but now I really have to start
handling all the puill requests..

I thought it might be an int3 that happens on the entry stack, but I
don't think that should ever happen. Either it's a user-mode int3, or
we're in the kernel and have switched stacks. So I still don't see why
my patch doesn't work, but now I have no time to debug it.

                   Linus