Look at it this way:
Amount of kernel effort available: zero
Ability to invoke debugger with kmod-like trap: none
Ability to invoke debugger with ptrace technology: limited
Michael's ucore could replace kernel core dumping: no
Amount of kernel effort available: minimal
Ability to invoke debugger with kmod-like trap: questionable
Ability to invoke debugger with ptrace technology: yes
Michael's ucore could replace kernel core dumping: maybe
Amount of kernel effort available: extensive
Ability to invoke debugger with kmod-like trap: yes
Ability to invoke debugger with ptrace technology: yes
Michael's ucore could replace kernel core dumping: maybe
For any given level of kernel effort, using ptrace technology gives
a more powerful result than a kmod-like trap. That's my point.
Michael Elizabeth Chastain
<mailto:mec@shout.net>
"love without fear"
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