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Date:   Tue, 7 May 2019 23:13:40 +0900
From:   Masami Hiramatsu <mhiramat@kernel.org>
To:     Steven Rostedt <rostedt@goodmis.org>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Andy Lutomirski <luto@amacapital.net>,
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        Andrew Morton <akpm@linux-foundation.org>,
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Subject: Re: [RFC][PATCH 1/2] x86: Allow breakpoints to emulate call
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On Mon, 6 May 2019 17:45:11 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:

> If we go with Peter's patch, I can make this code much more sane, and
> not have to worry about having &regs->sp be at the top of the stack. I
> could simply, just push everything in the order of pt_regs and call the
> handler.

Hi Steve, I need to catch up with the origin of this series, but it seems
also good to optprobe which is doing similar trick on pt_regs. If we can
assume that int3 pt_regs can have a gap, optprobe can also make a gap, and
it can be also used for storing destination address.

Thank you,

-- 
Masami Hiramatsu <mhiramat@kernel.org>