Hitachi djprobe mechanism

[Masami Hiramatsu]

Hi, Roland

Roland McGrath wrote:
> They posted here, and the basic techniques are the same as the published
> "kerninst" work.

  I think Kerninst is similar in effect to djprobe. both of them copy
original code to a buffer and jump to the buffer.
  However I think that the most unique feature of djprobe is use of
"bypass" route to safely insert code on SMP.
  I cannot find SMP safety mechanism like "bypass" in kerninst papers
yet.

  Please let me know  if you knew it.

best regards,

-- 
Masami HIRAMATSU
2nd Research Dept.
Hitachi, Ltd., Systems Development Laboratory
E-mail: hiramatu@sdl.hitachi.co.jp