On Tuesday 08 November 2005 14:36, Zachary Amsden wrote:
> One can imagine clever uses for ptrace to do, say user space
> virtualization (since I'm on the topic), or other neat things. So there
> is nothing really wrong about having the fully correct EIP conversion
> (and here we shouldn't need to worry about races causing some issues
> with strict correctness, since there can be one external control thread).
Well, the code still scaries me a bit, but ok. x86-64 left at least one case
intentionally out.
> But were kprobes even inteneded for userspace? There are races here
> that are difficult to close without some heavy machinery, and I would
> rather not put the machinery in place if simplifying the code is the
> right answer.
I believe user space kprobes are being worked on by some IBM India folks yes.
-Andi
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